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LIBRARY OF THE
UNIVERSITY OF ILLINOIS
AT URBANA-CHAMPAIGN
510.84
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no. 782-787
cop. 2
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UNIVERSITY OF ILLINOIS LIBRARY AT URBANA-CHAMPAIGN
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v RECTI
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Digitized by the Internet Archive
in 2013
http://archive.org/details/dcsinformationst783lars
f'/aTK
UIUCDCS-R-76-783
to. si
■■7X3
January 1976
THE DCS INFORMATION STORAGE AND RETRIEVAL
SYSTEM FOR GRADUATE APPLICANTS AND STUDENTS
by
J. B. Larson
W. J. Kubitz
UIUCDCS-R-76-783
THE DCS INFORMATION STORAGE AND RETRIEVAL
SYSTEM FOR GRADUATE APPLICANTS AND STUDENTS
J. B. Larson
W. J. Kubitz
January 1976
This work was supported by the Department of Computer Science.
Department of Computer Science
University of Illinois at Urb ana-Champaign
Urbana, Illinois 61801
TABLE OF CONTENTS
Page
1. Introduction 1
2. Editor (ED) and Browse (BR) Users' Guide 3
2.1 Special Function Keys 3
2.2 ED Step by Step Instructions 5
2.3 Browse (BR) Introduction 12
2.4 BR Step by Step Instructions 13
3. Program Structure 17
3.1 File Structures 18
3.2 Program Structures 21
4. Software Maintenance 23
5. Problems & Possibilities 25
Appendices
Page
Appendix A 31
A.l FAA Field Table with Values and Ranges 32
A. 2 FAA Translation Table 34
A. 3 GSR Field Table with Values and Ranges 35
A. 4 GSR Translation Table 37
A. 5 GSR Format Table . . 38
Appendix B 39
B.l Sample Output Generated by HASP Command 40
B.2 Sample Output Generated by PRINT Command 41
Appendix C
Quick Summary of ED and BR Commands 42
Appendix D
Quick Summary of console commands 43
1. Introduction
This document describes the use, structure, and maintenance of the
Fellowship, Assistantship and Admissions - Graduate Student Records
(FAA-GSR) information system. This system was developed beginning in
the summer of 1973 to the present. It began as an off-line, batch job
operation and evolved into its present form, a fully interactive, remote
terminal system. Only the system in its present form is documented here.
The FAA-GSR system is a file editing - information retrieval system
involving two basic programs. The editing program (ED) allows the user to
access and change any element of the entire file. The retrieval program
(BR) supplies a means by which sets of records may be selected and printed.
In addition, a level of security is maintained by requiring the user to
have knowledge of certain passwords. Each program is written in DEC-10
FORTRAN and is structured to facilitate easy transfer to another machine.
Each program consists of approximately 600 - 800 FORTRAN statements and
occupies 20K DEC-10 36 bit words. Note that although the two programs,
BR and ED, are basically the same for both the FAA and GSR systems, the data
bases are quite different as described later. In addition, the usage is
different in that the frequency of updating and complexity of the desired
sorting/searching operations differ.
The motivation for the development of the system was the increasing
number of applicants to the graduate program in the late sixties and early
seventies. Along with the increased number of applicants was an increasing
number of requests from both inside and outside the Department for information
of a statistical nature about both applicants and students. These requests
often entailed tedious manual searching/sorting operations on a dynamically
changing data base. The existing manual records were not organized in a
way which allowed easy searching by any parameter other than name. Searches
involving multiple parameters were particularly time consuming and frustrating.
This situation is extreme in the case of admissions information (FAA)
because the data base is constantly being updated. For the student
record (GSR) information, the difficulty lies in the varying requirements
of the different degree programs and the multiplicity of parameters over
which simultaneous searching must be performed. It was and is hoped that the
present interactive system can greatly alleviate many of these problems.
The transition to this interactive system is not without its problems,
however. At this time, duplication of effort is involved on the part of
the clerical personnel in that a hard, hand-written copy is created first
and used as a source of input to the computer system. This is partly
a result of lack of faith in the non-volatility of the computer data base
(unfortunately well documented in practice) and also due to the fact that
some of the input data comes from the subjective deliberations of a committee
(FAA). The situation is not as complicated in the GSR case since the data
is primarily objective (from our point of view) and stable in time. The
major concerns in this case are loss of data and security.
The intent here is to document the current state of the systems,
provide user knowledge, and suggest possible means of maintaining the system.
There is also a discussion of possible future additions and changes.
Section 2 contains a user guide to using the FAA-GSR system. Section
3 describes the program implementation and data structures from a layman's
point of view. Section 4 gives suggestions on maintenance of the programs
and data files. Section 5 discusses current problems and future improvements
The Appendices provide current operational procedures from a personnel point
of view and summarize system commands and definition for quick reference.
2. Editor (ED) and Browse (BR) Users' Guide
Section 2.2 gives a list of steps describing how to edit an FAA or
GSR file. Section 2.3 gives a similar description for the browsing pror-
gram. At each step, the computer message which appears on the terminal
is given and the proper response is described. An explanation of
what actually happens at each step is also given along with a description
of what can be done in the event that the wrong information is entered.
First, the special function of some keys on the terminal and general
instructions for operating a DEC-10 terminal will be given.
2.1 Special Function Keys
Entering a Line into the Computer . One special function key is the
return key. To enter a line of information into the computer, press the
RETURN key.
Correcting a Line . If an error in a line is discovered before RETURN
is pressed, you can back up one character at a time to that place at which
the error occured on the line by pressing the RUBOUT key or by pressing
CTL H (i.e. press the CTL key and the H key simultaneously) and then retyping
the remainder of the line with the correction. Each time the RUBOUT key
is pressed, the character which is being deleted is printed between \
marks. Each time CTL H is typed, the cursor (the flashing line at the
bottom of the line) is backed up over the deleted character.
After pressing RUBOUT, the line which appears on the screen is not
the line which is actually used by the computer because of the deleted
characters which are displayed at the terminal but not used by the computer .
To see the line of information which is actually utilized by the computer,
type CTL R.
Deleting an Entire Line . CTL U will delete an entire line.
Stopping Output Temporarily . If the machine is listing a rather large
amount of information (e.g. a complete listing of a record) and you wish
to stop the output temporarily in order to read some of the information
before it disappears off the top of the screen, press CTL S. To restart
the listing, press CTL Q.
Suppressing Output . CTL suppresses output to terminal but the computer
continues to calculate and generate output. This provides a way of speeding
up the output process in order to get to the end of output execution.
For example, this can be used to skip rapidly over remaining output after
an item of interest has been obtained.
No Response from Computer . Normally, the computer should respond
to a command within 1 or 2 seconds. If for some reason, the computer does
not respond within a few minutes, there is probably something wrong with
the DEC-10. If the terminal does not seem to respond, type CTL C several
times. If a period appears on the screen, type CONTINUE and press RETURN
twice. A message should appear indicating what the program is looking for.
If no period appears on the terminal, hang up the phone and try again later.
Use this procedure only if the machine does not respond properly.
2.2 ED Step by Step Instructions (Refer to Figure 1)
Organization of Work by Task .
Step 1 Organize the work according to task. That is,
collect all the ADDs, CHANGES, SEQUENTIAL CHANGES, NAME
CHANGES and DELETES together into separate groups. This
is necessary because the system operates in one command mode
at a time. Thus, all the ADDs are done while in the ADD
mode, all the CHANGES while in the CHANGE mode, etc.
Login and Initialization .
Step 2 Turn on the terminal and dial the computer (3-4000) .
When a continuous tone is heard, place the phone in the cradle
(cord towards you) and press CTL C (press the keys CTL and
C simultaneously) several times. A message requesting LOGIN
should appear on the screen. If you get a busy signal from
the phone, then hang up and try later; there is no line available
at this time. If no message appears on the screen, then the
computer is not operating; hang up and try again later.
Step 3 Computer: A message requesting you to LOGIN
Response: LOGIN 4535,1122 (FAA)
LOGIN 4535,1120 (GSR)
Step 4 Computer: PASSWORD
Response: enter password
Step 5 Computer: operator messages about changes in normal schedule
terminated with a period
Response: RUN ED
Step 6 Computer: ENTER DATE
Response: enter date as YY/MM/DD
Example: If today's date is June 13, 1975, then enter:
75/06/13
Step 7 Computer: CHECK DATE
Response: If the date is correct, type Y and proceed to Step 8,
otherwise, type N and repeat Step 6.
Step 8 Computer: ENTER CODE WORD
Response: type in the code word
Step 9 Computer: IS 375 THE CURRENT SEM-YR? ENTER CR OR NEW SEM-YR
DATE
CODEWORD
m
SEMESTER
CHECK
COMMAND
ADD
S^ I FIELDS I
©I ^ I ©J * 1|
i -^ m SSN P 42 * FIELD VALUE — '
*| f #1 T LZ_
NAMEC
CHANGE
JL
A
DELETE '
SCHANGE ■
CRSADO
>3
ILLEGAL
COMMAND
LOOP ON ALL
®,
_&.
LIST
RECORD
FIELD
NAME
uT
OLD
NAME
M
NEW
NAME
FIRST OR
INITIAL
NEW
SSN
NAME
A
FIELO
NAME
I
FIELD
VALUE
LIST
RECORD
ii /
NAME
• ®
LOOP ON DESIGNATED
BEGINNING
FIELD
ENDING
FIELD
NAME
I
m
FIELD VALUE
T7
M.
n #
LIST
RECORD
FIELD
NAME
3"
COURSE
J
UNITS
TOTAL
» PROF
NAME
E~I
M
GRADE
RANK
ILLEGAL RESPONSE
STOP
EXIT
®
V
SCHANGE
ONLT
NO
STORE RECORD K-
YES
PERMANENT
ENTRY?
T
NOTE, THIS PATH RETURNS TO THE COMMANO
FROM WHICH IT CAME EXCEPT FOR SCHANGE
FIELD
NAME
LIST
RECORD
T
FIELD
VALUE
Figure 1. Control Flow for ED
Response: normally type CR unless this is a new semester,
then type the SEM-YR.
Explanation: When a large amount of course information is being
entered for one semester, the program automati-
cally inserts the above semester and year into the
appropriate field. If you wish to enter course
information for a new semester (the one following
that printed, presumably), then type Y, otherwise,
enter a carriage return (CR) .
Step 10 Computer: ENTER COMMAND
Response: Enter one of the following commands:
ADD - if you are adding a new record to the file
CHANGE - if you are modifying random fields of
current records (e.g. general exam results)
SCHANGE - if you are modifying or adding information
to a sequence of the same fields for all
existing records (e.g. entering course
information by_ student for the previous
semester for GSR or attend information
for the FAA file).
NAMEC - if you wish to change the name corresponding
to a certain SSN or the SSN corresponding to
a certain name.
DELETE - if you wish to delete a record from the
file entirely.
STOP - to terminate this session.
CRSADD - if you wish to enter course information by
course at the end of a semester.
Any other command will return you to Step 10.
Explanation of the ED Command Modes . Note that the sets of steps
given below for each possible command (Steps 11 - 31) are mutually exclusive
even though numbered sequentially. Figure 1 shows the control flow for the
ED program.
Add Command .
Step 11 Computer: ENTER SSN
Response: Enter the SSN (Social Security Number) for the new
record as 9 digits (do not include separators such
as / or -) . Enter a / to return to the command
level (Step 10) .
Example: 438702607
Errors: If a record with that SSN is already in the file, the
message SSN ERROR is printed; return to Step 11. If
you type in the wrong SSN, it may be changed later by
using the NAMEC command or by typing / and then NO
to abort this entry. Then proceed with Step 11 again.
Step 12 Computer: prints a field name
Response: Enter the value for this field. (Be careful to dis-
tinguish between (zero) and the letter 0, and the
number 1 and the letter L) . Return to Step 12 unless
this is the last field in which case go to Step 17.
Explanation: Each element of a record is accessed via its field
name. A list of all valid fields for each set
of records (FAA or GSR) is given in Appendix A.
For GSR File Only: To enter a date of any kind, enter SYY,
as three digits where S has the value
of 1 for Spring semester, 2 for Summer
and 3 for Fall and the year is the calendar
year (YY) . For example, Fall semester 1975
would be 375.
In response to the CRS.PROF field, enter
the name of the professor only if he is in
the CS Department. Otherwise, enter blank
for professor. If a professor is new to
the Department (i.e. not in the list of
professors which the program stores) , a
message to this effect is printed. If YES
is the response to the message, the professor
is added to the internal list, otherwise,
he is ignored. Since there is only space
for the names of 80 different professors,
be sure that the name is spelled properly.
If you get this message and this is indeed a
new name, then a YES response will auto-
matically add the name to the list.
The GSR file automatically computes accumu-
lated statistics such as CUMGPA and these
need not be entered.
Alternate Response: If desired, instead of entering a field
value at some point, you may enter a special
character which will not change the current
value of the field. Instead one of the
following actions is taken:
i) // causes the entire record to be listed
(see Step 16) after which control is
returned to Step 12.
ii) * allows one to change fields so that one
can begin entering information from a
different field in the record (Step 13) .
iii) / is used to indicate that all the
information has been entered for this
record and that the record is ready
to be stored (proceed to Step 17) .
Step 13 Computer: ENTER FIELD [Computer response to * entry]
Response: Enter a valid field name. If the field name is one
describing course information, proceed to Step 14,
otherwise, return to Step 12. (Only enough letters
of the field name to distinguish it from the others
need be entered) . One of the special characters
of Step 12 can also be entered at this point.
Step 14 Computer: WHICH COURSE?
Response: Enter the course name corresponding to the actual value
(grade, credit, professor or semester) which is to be
changed .
Step 15 Computer: CHANGE THIS COURSE NAME (Y/N)
Response: Normally enter N (NO). Enter Y (YES), key RETURN
and enter new course name if the name of the course
is to be changed. Otherwise, press RETURN. Go back
to Step 12.
Step 16 Computer: COURSE OR HISTORY (C/H) [Computer response to # entry]
Response: Enter C or H to obtain either a course or history
list of the current record. Return to the previously
entered state (Step 12, 13, or 17).
Explanation: C causes a listing of the complete course records
for that student. H causes a complete listing of all
non-course information for that student.
Step 17 Computer: PERMANENT ENTRY? ("Computer response to / entryj
Response: Normally, enter YES, If this record is to be abandoned,
enter NO. Enter # or * as described in Step 12 above.
Continue to Step 11.
SCHANGE Command .
Step 18 Computer: ENTER BEGINNING FIELD
Response: Enter the name of the first field which is to be altered
Step 19 Computer: ENTER ENDING FIELD
Response: Enter the name of the last field to be altered.
CHANGE Command .
Step 18 Computer: ENTER LAST NAME
Response: Enter the last name for the record or a / to
return to Step 10. The computer may request first
name and/or SSN if there are two or more records
with the same last name.
Step 19 Computer: ENTER FIELD
Response: Enter the name of the field whose value is to be
changed or the characters # or / as described
previously.
Step 20 Computer: Prints a field name
Response: Enter the value of the field or the special
character # or /. Normally (unless / is pressed)
return to Step 19.
Step 21 Computer: PERMANENT ENTRY?
Response: Type YES, NO, //, or *. This is similar to Step 17
of the ADD command, however, a NO response leaves
the record in the file unchanged. (i.e. the latest
editing is not recorded). Continue with Step 18.
SCHANGE Command .
Step 22 Computer: ENTER BEGINNING FIELD
Response: Enter the name of the first field which is to be
altered.
Step 23 Computer: ENTER ENDING FIELD
Response: Enter the name of the last field to be altered.
Step 24 Computer: ENTER LAST NAME
Response: Enter the last name for the required record or /
to return to the command level (Step 10) . The
computer may request further information if there
are two records with the same last name.
Step 25 Computer: Prints a field name
Response: Enter the value of the field or a special character
as described in Step 12.
Step 26 Computer: PERMANENT ENTRY?
Response: Same as Step 21. Continue with Step 24.
10
NAMEC Command .
Step 27 Computer: ENTER OLD NAME
Response: Enter the last name of the record to be changed or /.
Step 28 Computer: ENTER NEW NAME
Response: Enter the new last name for this record. The program
will then request the first name and SSN, enter the
proper values for the new record. A blank entry to any
of these queries will result in blanks being recorded .
Step 29 Computer: PERMANENT ENTRY?
Response: YES, NO, *, or //. Same as Step 21. Continue with
Step 27.
DELETE Command .
Step 30 Computer: ENTER LAST NAME
Response: Enter the last name of the record to be deleted or /.
Step 31 Computer: PERMANENT ENTRY?
Response: Type YES to permanently delete this record, continue
with Step 30.
CRSADD Command . (GSR Only)
Step 32 Computer: ENTER COURSE
Response: Enter the course name. CS 321, for example. The
computer will then ask for the credit for the
course, UNITS the total final enrollment, TOTAL
and the name of the professor, PROF. The date is
entered automatically. A / will return to the
command mode.
Step 33 Computer: ENTER LAST NAME
Response: Enter the last name of the student for whom the
grade is to be recorded or a /. The / returns
you to Step 23.
The computer will ask for the GRADE and RANK for each
student. Note that exit is to the command mode rather
than PERMANENT ENTRY?. Errors can be corrected using
CHANGE.
STOP Command .
Step 34 Computer: The program execution is halted. Logout of the computer
by typing K/F. Hang up the phone and turn the terminal
off.
11
2.3 Browse (BR) Introduction.
The Browse program (BR) allows a user to list any record or
logically described subset of records on the terminal or on the printer.
Logical sets of records are defined by the user as follows: The program
maintains several levels or sets of records numbered by level as 1, 2, 3,
etc. At level 1, all records are included. A logical subset of these
records can be transferred ot the next level (i.e. level 2) by entering
the command RETAIN and an EXPRESSION consisting of a boolean expression
involving relations between field names and constants which describe the
new set. Further refinement can be obtained by executing the command
RETAIN once again and forming a set of records at level 3. Previous
levels may be accessed by backing (BACKUP) up one level at a time to
the desired set. Using this process, any set of records which can be
described by a logical expression can be selected and a formatted list
(COMPLETE) or a list restricted to only a few fields can be generated
on the terminal (LIST) or on hard copy (HC) . In addition, the browse
program can be used to generate some statistics.
12
2.4 BR Step by Step Instructions (Refer to Figure 2)
First follow the login Steps 1 through 4 of the edit program.
instructions.
Step 5 Computer: . (period)
Response: RUN BR
Step 6 Computer: DO YOU WISH TO KEEP A LOG?
Response: Normally, enter blank. However, if you wish a
hard copy log of what you have done, respond Y
and a hard copy log of your dialog will be printed
on the DEC-10 output printer.
Step 7 Computer: ENTER COMMAND
Response: Enter one of the following commands. (Only the
first two characters are necessary) .
RETAIN — to retain only a subset of the current set of records
BACKUP — to backup to a set of records at the previous level
CLEAR — to begin again with the set of all records
AVERAGE — to find the average value of some field
LIST — to list a selected set of fields of the current set of records
HC (hard copy) — to obtain a hard copy listing of the output
generated by LIST from the DEC-10 line printer
COMPLETE — to obtain a complete list of a set records on the terminal
PRINT (GSR) —rto obtain a complete hard copy listing of a set of
HASP (FAA) V records from the printer.
HELP — to obtain a list of all valid field names
STOP — to terminate program execution
Explanation of the BR Commands .
Here again, the commands are mutually exclusive as shown
in Figure 2.
Retain Command .
Step 8 Computer: ENTER EXPRESSION
Response: Enter an expression describing the set of records
to be retained or enter a / to return to the
command mode.
13
<£
LOG ?
J.
Q£
COMMAND
CLEAR I — >=^-»h LEVELU j-
RETAIN i — ^-»
BACKUP
HELP ■"*
AyERAGE
__ FIELDS J
©J
i — -=^» FIELD ?
LIST i.
HC >
COMPLETE ■
HASP f
IFAA)
STOpI®
exitV-
ILLEGAL
COMMAND
EXPRESSION
LEVEL =
LEVEL + 1
0.{"livk;
16 r-
^l COMPUTE AND i
^_LIST AVERAGE _]
FIELD i
Li;L*.'J
blonk T generate"!
— 1 list r
®
LABEL
FIELD i
i l»l + l !
blonkl I GENERATE J_
\ HARD COPY !
,GSR ONLY
(5)
COURSE/
HISTORY
IT ONI
ECORD
'CI
I 1 NO MORE
C OR H i LIST ONE ' CR j GO TO NEXT j RECORDS
i RECORD ! i RECORD
J
POINT .J BUIL0 MLt °
;,.., T^ SEND TO PRINTER f
COPIES ?
BUILD FILE a
SENO TO PRINTER
Figure 2 Control Flow for BR
14
Explanation: An expression is any boolean expression of binary
relations between a field name and a proper value
for that field. Valid relational operators are:
=, <=, >=, <, and >. Boolean operators are + (or), I
(andX and\ (not). A sequence of fields may be
accessed by specifying only enough of the field
name to represent all fields to be accessed. Course
information may be accessed with the GSR program by
specifying the associated course name and then the
desired item (grade, professor, credit, rank,
semester). Field value constants are matched with
field values to as many characters as specified.
Fields which are coded may be specified by either
the coded value or the descriptive value.
All records can be retained by using the ? for
the field value and asking for all values <?.
(i.e. ? is the largest value).
Any record is matched by using the "wild card"
feature. This is done by using the * in place
of a value or portion of a value. (i.e. the *
matches any value). Thus SEM ENT = *75 gives
all students who entered in the calendar year
1975. In this case the * matches 1, 2 or 3.
Example 1: INT - NUMERICAL
Explanation: retains all records with any interest in numerical
analysis (FAA file)
Example 2: EXP 1 = ART
Explanation: retains all records which contain an EXP 1 field
of artificial intelligence (FAA file)
Currently, values for fields containing numerical information in the
GSR file must have the entire field specified. Items taking on fractional
values such as course units and grade-point averages are stored as four
digits with the values expressed in terms of hundredths. For example,
a 4.95 GPA is stored as 0495 and 1 1/4 units is stored as 0125.
Whole number information is stored as an integer right adjusted in
the four digit field.
Example 3: COURSE = CS329 & CRS. GRADE = A
Explanation: retains all records with a grade of A in CS329
(GSR file)
Example 4: CUM GPA = 0450
Explanation: retains all records with a GPA = 4.50
15
Example 5: #400
Explanation:
<= 0200 & SEM REG >= 0003
BACKUP Command
Step 9 Explanation:
retains all records with less than two 400 level
units and more than 2 regular semesters registered.
The program responds to this expression with the
number of records in the new set, the percentage
of old set which this new set comprises, and the
level number assigned to this set.
The program responds with the previous level and
it now accesses the set of records corresponding
to this level.
CLEAR Command
Step 10 Explanation:
The program returns to accessing the set of all
records and resets the level to 1.
AVERAGE Command.
Step 11
Computer: ENTER FIELD
Response: Enter the field name of the field which is to be
averaged.
Explanation:
The program prints the average value for all records
of the current set which are non-blank for the
field entered. (Course information cannot be
averaged) .
LIST Command.
Step 12 Computer: ENTER FIELD (i)
Response: Enter the name of each field which is to be listed
for up to 20 fields. Enter a blank field at the end
to initiate listing. Enter / to return to the command
mode without a list. The computer advances i by 1
after each valid entry.
Explanation:
The set of fields is listed on the terminal. All
available space is used (hence the limitation of
20 fields)
HC Command .
Step 13
Computer :
Response:
ENTER LABEL
Type in the label which is to appear on the hard
copy listing. Continue as with the LIST command
above.
16
COMPLETE Command .
Step 14 Computer: Course or History (C/H) (GSR only)
Response: Enter C to obtain a list of the course information.
H to obtain a listing of the rest of the fields for
each retained record. After each record, the listing
stops, press RETURN to continue with the next record
or / to return to the COMMAND mode.
PRINT (GSR) or HASP (FAA) Command .
Step 15 Explanation: This command forms a hard copy complete listing
of the saved records. This process may take some
time as they involve a great deal of processing.
The HASP command will ask how many copies are
desired.
HELP Command .
Step 16 Explanation: HELP gives a list of all valid field names which
can be used in boolean expressions describing
sets of records.
STOP Command .
Step 17 Explanation: Terminate execution. Enter K/F to logout.
3. Program Structure
The basic file structures, program structures, and the internal data
structures are described in this section. The FAA-GSR system is composed
of two programs, EDIT and BROWSE, and two major files, a data file and a
table. The program ED performs maintenance of the records stored in the data
file, GRAD.O or GRAD.l. Through this program, any field within any record
can be modified. The program BR allows the user to list any logically de-
scribed subset of these records. The data file contains the active records
in a random access-binary format. The structure of these records is given in
the table file, TABLE.DAT.
17
3.1 File Structures
Data file (or record Hl^ , r.p A n n rr rr
L *- inis ri le contains all
of the records for the eve*-**™ t? i.
r cne system. Each record in the faa f-ti
j-n cne hAA file contains 240
characters; each record in the GSR file contains 600 h
« contains 600 characters and 800
digits. The character information is packed s ^
packed 5 characters to a word (36
bits/word, 7 bits/char) of memory while the m^ « *
y wnile the digit information is encoded
(-• eac h Kord contalns ^ ^ representation ^ ^ ^ ^ ^
« c haraccers and dlglts are accessed through one ^ ^ cim
to facilitate transfer to another machine.
The ED program accesses each record by the last n am e «
y cne last name, first name, and
SSN. It is assumed that each record will at l M .f k
W1J " L at leas t have a unique SSN.
Records are stored in order of last n amo «
last name, first name, and SSN. New records
are added to the file by fi rst storing them in a transactions file
XKAN. DAT , until 20 recordg ^ been accumuiated> ^^ ^^^^ J^ ^ ,
-* the current file i nd i cated by either . x _ . fl ^ ^ ^ ^
- -e transactions file. ReC ords are changed by selecting the record
Edifying it, and replacing the old record with the
record with the new version. Records
are DEEETEd by bl a„ klng out the la „
' lhe NAME Change operation adds
the record with the new name and deletes the „ih
aeietes the old copy. The ADD operation
simply adds the new record.
ISSiS-LiiSiJEABLEJJAT The structure of the entlre ^ ^ ^ I
contained in this f-fio T
" TU ° "" eS "" '""^ «or.d ^ thl. fUe; . fleld
-Me con t a lnlng all ^^ ^ ^ ^^ ^ ^ ^ ^
18
each record, and a decode table which contains decode information for fields
which are coded. Included in the field table is the name of each field
within the record, the starting character within the record and the field's
length (see Appendix A). Since some fields are coded to conserve storage,
this table contains information about where to look in the decode table
for the codes for each field. A type column is included to invoke special
routines within the programs according to special requirements of each
field. Also the fields are logically grouped in the field table and a
special column indicates this grouping. Finally, a formatted printout
is available in the program BR and the table contains the row and column
in which each field value is to be printed. The decode table contains the
coded values and the printed values for coded fields.
More precisely, the table structure is as follows:
The first line of the file contains special information as follows:
Column Name Description
1-3 NFIELD # of fields in the table
4-6 INST field number of INT 1
7-9 EXST field number of EXP 1
10-12 GS the field number of the field COURSE
13-15 NS // of characters in each record
The field table format is as follows:
Column Name Description
1-10 FIELD field name
11-14 BEG beginning location of the field
value
15-17 LEN length of each value of the field
18-20 DB beginning location of the decode
table entries for this field
19
Column
21-23
24-26
27-29
Name
DE
IADV
TYPE
30-32
33-35
ROW
COL
Description
ending location of the decode
table entries for this field
a pointer to the next logical
set of fields
type of the field
1 - this field must be decoded
2 - this field is a number
3 - the field is a number
represented in hundredths
of units
5 - COURSE
6 - CRS.PROF
7 - CRS. GRADE
8 - CRS. DATE
9 - CRS. UNITS
10 - CRS. RANK
11 - CRS. TOTAL
row in which to print this value
column in which to start printing
this value
The decode table format is
Column Name
Description
coded value in the record
decoded value which is printed
1-2 CODE
6-30 VAL
The actual tables are given in appendix A.
Format file, FORMAT This file contains the format for listing
of indivudual records. The format is as follows: The first line con-
tains a number indicating the number of vertical lines to draw. The
next lines specify first the column in which to draw the vertical line
and then the rows which bound the line. Next, the horizontal lines
are specified in a similar manner (i.e. // of lines, row and column where
the line is to appear). Following this is a list of names (or labels)
20
which are to appear on the output. The column, row and actual name are
given. The current format files are given in Appendix A.
3.2. Program Structures
ED Program Structure . This program is composed of several subroutines
which perform various tasks. Each routine is described below along with
the pertinent data structures.
MAIN — This is the driving program which decodes each command
into several calls to various routines. Also, the data
structures are initialized at the beginning of each execution
and whenever necessary elsewhere. The actual structures
are described below.
NAME, SSN — are arrays which store the first 5 letters of the
last name and the SSN for quick location of records.
REC — contains the current record.
NP — contains the number of entries in the decode table.
NFIELD — contains the number of fields in record.
GS — points to the beginning of the grade information.
NS — points to the beginning location of the digit information
within each record.
CFILE — points to the active data file.
The remaining subroutines are described below:
UPDATE — sorts the transaction file and merges the sorted list of
records with the old data files. A bubble sort is used
since most transactions are in order anyway.
FNAME — locates the required record and reads the current
record into REC.
LFIELD — accepts a field name and locates its position in the table
by calling FFIELD.
FFFIELD — actually locates the field name which was input and stores
its location in the variable FPTR .
21
ACCPT — accepts a field value and stores this value in the record .
PRT — lists an entire record on the terminal.
STOW — generates accumulated statistics and stores the record
in the data file,
STORE — stores a field value into the record,
CHAR — retrieves a character (or digit) from the record.
BR Program Structure .
MAIN — The main procedure of BR initializes the arrays, accepts
commands and executes the proper sequence of calls to sub-
routines as indicated by the command. Data structures
which do not appear in the editing program are the following:
SAVE — stores the level to which each record is assigned.
LEVEL — contains the current level.
The remaining subroutines are:
RETAIN — accepts a boolean expression, forms a polish postfix
string by calling POLISH and then checks each saved
record against this expression by calling CHECK.
POLISH — forms a polish postfix string and builds a symbol table
STAB with the following structure. Each row of STAB
corresponds to one operand. The first column contains
the type, the second contains a length value, and the
third column contains the starting location.
A type of indicates a constant value which is stored
in the original expression string. The begin field of
STAB points to the value position in the string and the
length element of STAB is the constant length in the
expression string. A type of -1 indicates the field
which is to be compared with a vilue. In this case,
the begin field points to the field location in the field
table, the length indicates the number of adjacent
elements of the field which are to be accessed.
The polish string contains operators (indicated by
positive numbers) and operands (indicated by negative
numberswhich point to some row of the symbol table).
Each token which is inserted into the polish string is
obtained by a call to the routine TOKEN.
TOKEN — selects the next token from the input string and
inserts operands into the symbol table STAB described
above.
22
CHECK — matches a record to the polish string and returns a 1
if the record matches the string. If a course number
is given, then this course is looked up in the course
list of the record and the corresponding field of the table
is interrogated. A coded field value is first encoded
if the given value is found in the table, otherwise, the
coded value it assumed.
COMPL — prints a complete record on the terminal when invoked by
PRINT command. The virtual page is generated within the
program from the constant values of the file FORMAT
and then the record values are inserted for each record.
HASP — (FAA only) A temporary file is formed which is readible
by the followup PL/1 program on the IBM 360/75. The proper JCL
is queued up with this file for printing. The JCL and
output format is stored in a file JCL under 4535,1116
in a format similar to that of the file FORMAT. The PL/1
program is stored in the file NEWLST under 4535,1116
and its load module is stored on disk.
AVERAG — computes the average of all saved records.
LIST — accepts field names for field values to be printed. Each
line of print is generated within this procedure and
proper spacing is determined to fill the available space.
Also invoked by HC command.
HELP — lists all field names.
4. Software Maintenance
Modification of the programs to include new features may prove
to be quite difficult since the programs currently occupy all the
available space. Some modifications to the files are quite simple,
however, and a suggested procedure is given for making these changes.
A new field may be added by first finding some empty space in the
record. Characters should be inserted only in the character area of
the record (1-600 for GSR, and 1-240 for FAA); all digits may be placed
anywhere but for the GSR file, it's more economical to place digits
in elements 601-1300. To add a new field, assign the BEG and LEN fields
23
to a vacant space in the record. Next, assign a type field. Use
(or blank) in most cases. If the field must be decoded use a value of
1. To suppress leading O's on output of a digit field, use the value 2.
Decide where the new value is to appear on the output and assign the
ROW and COL parameters accordingly (if it is not to be printed, leave
the row and col fields blank) .
To actually insert the field into the table, some renumbering
of existing fields is necessary. Find the logical place in the field
table for the new field. Adjust the various pointers as follows:
Add one to the NFIELD, IVST, and EST (FAA only), and the GS parameters.
Calculate the field number of this new field (i.e. the number of this new
line in the field table) , and add 1 to each IADV field which has a value
greater than this field number. Then insert this new field into the
table.
If this field is to be decoded, the decode information must be
added to the decode table. For the GSR file, since the professor
list must be the last set of decode values of the decode table, enter
the new decode values just before the professor list. Determine the
range of these new values (i.e. the locations of these new values
in the decode table) . Enter the beginning and ending locations of these
new values into the DB and DE columns for the new entry of the field
table. Finally, the DB columns for each field which codes professors
names must be updated. Add the number of new values entered into the
decode table to each DB parameter associated with a professor name
(there should be 3 of these). For the FAA file, simply add the new code
values to the end of the table and enter the range into the DB and DE
24
elements of the new line of the field table. If the coding values
are already in the decode table, they can be reused. Simply place
their range into the DB and DE columns of the new entry.
Finally, any labels which are to appear on the output must be entered
into the FORMAT file (GSR) or the JCL file (FAA) by entering the row
and column in which the label is to appear followed by the actual
label on the same line.
Some other simple changes are also possible. To change the decoded
name for any field, change the associated value of the decode table.
To change the name of any field, just change the name in the field table.
No further modification can be made without program modification.
Additional course information is only possible with program modification.
5.0 Problems & Possibilities
Duplication of Effort The largest single disadvantage to the
current operational procedure is duplication of effort since, at this
time, the record custodian is maintaining both the old and the new
systems. Decisions must be made in the near future which will allow
us to at least reduce this duplication.
In the case of the GSR system, this will not be too difficult
since a hard copy can be generated immediately and the information
is available from other sources as a last resort. We could also
consider generating our own backup but, to date, we have been able
to successfully recover by using standard system backups. Thus, it
should be possible to rapidly shift almost all student records over
to the automated system. Toward this end a trial run is being carried
out during the current semester.
25
Of course, some information will continue to be recorded by
hand since it is of a more archival nature. In addition, information
such as address, phone number, current registration and so forth has
never been a part of the permanent record and has not been included
in the automated system.
In the case of the FAA system, the problem is slightly more
complicated due to the fact that certain objective information is
needed by the FAA committee prior to a meeting in order to make
subjective judgements about the applicant. These decisions are
based on a non-linear, time varying, weighted subjective summation of
objective and subjective information. [Objective information in this
case is subjective information whose origins are obscure.] Then,
after the meeting, the subjective judgements must be recorded. Thus,
either two accesses to the records must be made or a duplicate hand
record must be used.
One possible direction in which to move is toward entering the
information into the computer, using the computer output along with
the other information to make judgements at the meeting and then
entering the results into the computer. This involves two accesses with
intermediate printed output generation.
The other approach would hand record all data including results
of the meeting and then enter all data. This appears to be the pre-
ferable way to operate primarily because the objective data must be
brought together from a variety of sources and this is not done easily
or efficiently while sitting at a terminal.
26
There is reluctance to switch over to this new system. This
reluctance is based on the realization that the information is of great
importance and may not be lost under any circumstance. There is also
concern about the availability, reliability and non-volitility of
the (or any) computer-based system.
Availability One problem is availability. That is, will the
computer be available when needed? Our experience in this regard
has been very good. Data that is needed rapidly can be obtained
from the hard copy printout. Data that requires large amounts of
terminal time such as sorts, statistical information and so forth is
usually less urgent.
Reliability Another concern is reliability. There are two
aspects to this. Will the computer system preserve the data and is
the data correct?
Correctness of the data is achieved by checking the hard copy out-
put from the system. The record custodian can do this for the FAA
system. For the GSR system the best check is achieved by having
each student check his or her own record at the time of pre-
registration.
The existence reliability of the data base has had its ups and
downs and is not under our control. Under current policy, f lias are
deleted if not accessed during a one month period. This is only
occasionally a problem since normal routine causes accesses at a rate
exceeding this. However, ficticious accessing can be done on a
monthly basis and can be made a routine task for the record custodian.
Maintanence A third area for concern is maintanence. Again
these are two aspects - record maintanence and software system
27
maintanence. The former is easily done by the record custodian. The
latter has been done by a senior graduate student and can probably be
continued this way. As the system evolves, very little of this should
be necessary unless a major change is required when the switch
to a new computer system is made.
In summary, the existing problems are well in hand and a move
from the manual system to the computer system can and should be made
if we are to avoid an expensive duplication of effort.
Usefulness The current system, as simple as it is, is quite
powerful and allows one to do what was either very time consuming or
impossible previously. In the FAA case, we can achieve rapid dis-
semination of summary information on applicants to our staff and to
others. We can generate summary and statistical information in a
multitude of ways to meet the varying needs of the department, the
staff, the graduate college, the University, outside agencies and,
of course, our -friend and benefactor, the federal government with it's
surverys of ever increasing complexity and number. Without the
current system some of this information would be extremely difficult
to obtain. A great deal of clerical time is saved here.
Similar remarks apply to the GSR system except that it is varying
departmental needs which are served primarily. How many students
in each program have GPAs below 4.00? How many are first year? Which
students have been here more than 10 semesters? Who has passed this
exam or that? Who is to take this exam or that? We now administer
four degree programs with differing requirements to over 230 students.
V,'tj need a system which allows us to keep track of who is doing what
without repetitious file searching.
28
Of course, one can just as easily get infomration of little or
no value. Deciding what is important is always more difficult when the
choices are large.
Cost-effectiveness It was never claimed that this sytem would
save money. It hasn't yet, of course, and perhaps it won't. It does
allow us do things which were previously almost impossible. As we
use the computer more directly reducing the manual duplication, the
economics will improve.
The Future The FAA system is mature, having been used for a full
year, and should require only routine maintanence and possible minor
revisions. For example, the department has decided to add a fifth
area to the possible entrance requirements and this will require
an expansion of the prerequisite grade fields.
The GSR system has not had even a one semester cycle yet and
thus it is reasonable to expect that some changes may be needed.
Hopefully they will be minor.
The longer term direction in which to proceed is toward a self-
contained terminal system using floppy disc or tape cassette. So-
called word processing systems are now available. These are glorified
typewritters with storage and minimal processing capability. Within
the next ten years these should evolve into more sophisticated
systems since the addition of greater processing capability to a
system having storage and I/O should be a bargain that cannot be
resisted.
In the short term, the present system should be allowed a
controlled evolution. The FAA procedure could go from data to
computer with no intermediate copying. The GSR system should go to
29
the computer system approach but maintain the manual records system
for another semester. However, the manual records should not be used
but rather kept as a backup. The computer system should be used to
see if it works. This is currently being attempted.
30
Appendix A
Field and Translation Tables
31
A. 1 FAA Field Table with Values and Ranges
c
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NAME
1
20
1 3
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INIT
31
1
.
1 19
C
-
SEX
32
1
1
2
1 25
A
F,M
YOB
33
9
1 .45
N
00-99
CULCAT
35
1
8
14
1
N
1-7
1
PROG
36
1
3
7
1
1 57
N
1-5
2
AID?
37
1
34
35
1 82
A
Y,N
COLL 1
38
16
26
3 3
C
-
HRS 1
54
2
1
3 27
N
00-99
GPA 1
56
3
1
3 35
N
000-500
DEG 1
59
4
3 47
C
-
FLU 1
63
8
3 55
C
-
YR 1
71
T>
3 64
N
00-99
COLL 2
73
16
26
4 3^
HRS 2
89
*?
1
4 27
GPA 2
91
3
1
4 35
DEG 2
94
4
4 47
FLD 2
98
8
4 55
YR 2
106
2
'
1
4 64
>
sames
a deg 1,
etc.
COLL 3
ioe
16
26
5 3
HRS 3
124
2
5 27
GPA 3
lit
> 3
5 35
DEG 3
12S
► 4
5 47
FLD 3
13:
5 e
5 55
YR 3
141
2
1
5 64>
TOEFL?
14:
5 1
34
35
28
A
Y,N
T SCORE
14'
\ 3
N
000-700
GRE YR
14:
f 1
37
9 38
N
0-9
VERBAL
141
3 2
i
8 38
j
N
00-99
QUANT
15(
) 2
>
i
7 38
I
N
00-99
AT1YR
is:
2 1
37
L 9 48
N
0-9
ATI CD
is;
3 2
>
L 7 48
N
00-99
a r 1 X
is:
E" *"
>
L 8 48
N
00-99
AT2YR
15
7 ^
37
L 9 53
^
AT2CD
15
3 2
>
L 7 53
same
as ATI,
AT 27.
16
o :
>
1 8 53
J
32
A.l (continued)
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PREF
162
15"'
18
1
1
105
N
1-4
3
SW 1
163
41
7
20
23 "^
A A-E,X,P,W
SW 2
164
41
7
SW 3
165
41
7
26
HU 1
166
44
8
20
HU 2
167
44
8
23
HU 3
168
8
26
same <
is
NA 1
169
47
9
20 J
SW 1
NA 2
170
47
9
23
NA 3
171
9
26
LD 1
172
50
10
. 20
LD 2
173
50
10
23
' LD 3 "
174
10
26 J
T/L EXF
175
34
35
3
94
A
Y,N
REF 1
176
19
23
56
1
7
59
N
0-4
4
REF 2
177
19
23
56
1
8
59 |
REF 3
178
19
23
56
1
9
59 \
same
as
REF 4
179
19
23
56
1
10
59 j
J
Ref .
1
REF 5
180
19
23
1
CONS
181
24
30
1
5
94
N
0-9, b
5
FAA
182
19
23
1
4
94
N
0-4
4
ARC
183
2
C
1,2A
ATTEND
185
34
35
64
7
92
A
Y,N
SEM EN1
" 186
31
33
1
8
90
N
1-3
6
YR ENT
187
r«
i
1
8
98
N
00-99
AID CA1
r 189
1
78
88
1
9
92
N
0-9 ,b
7
EMPLOYE
-R 190
1C
i
1C
90
C
-
INT 1
200
2
! 36
77
69
11
30
N
11-51
8
INT 2
202
r
» 36
77
69
11
48*
i
INT 3
204
I
» 36
77
69
11
66
INT 4
206
► 36
.77
69
11
84
INT 5
20E
1 2
» 36
77
11
102
same
as
EXP 1
21C
► 2
» 36
77
74
12
> 30 /
INT 1
EXP 2
212
> 2
• 36
77
74
12 48
EXP 3
21^
i 2
» 36
77
74
12 ^
EXP 4
21<!
*•
> 36
77
74
12 84
EXP 5
21£
) 2
! 36
77
12 102^
OTHER
22C
) E
\
o
C
—
6
SEM AP
F 'L 228
J .1
31
32
; 80
1
o
N
1-3
DUMMY
22<
> 1
80
o
C
-
SSN
21
L S
>
o
N
9 digits
DATE
233
L £
i
p
o
C
00-99,
/ 9
*Jump to this field in ED ADD mode if blank is entered
**
2 = numeric - must be decoded
3 = numeric - stored as 100 x value
5-11 course information
33
A. 2 FAA Translation Table
©
L
G>
®
©
@
(L
r u(
V
1
2
3
Y
N
1
2
3
A
5
6
7
B
9
b
MALE
FEMALE
NON DEGREE
MASTER'
DOCTORATE
MTCS
MCS
AMERICAN INDIAN
BLACK AMERICAN
ORIENTAL SURNAMED
SP SURNAMED
FOREIGN STUDENT
CAUCASIAN AMER
OTHER
FELLOWSHIP
ASSISTANTSHIP
T & F WAIVER
NONE
BELOW AVG.
AVERAGE
ABOVE AVERAGE
EXCELLENT
SUPERIOR
FELLOWSHIP
TA OR RA
RA ONLY
ADM ONLY (BY FIAT)
ADM ONLY (BY REQ.)
DENY (BY FIAT.)
DENY (FOR FIN. REASONS)
JANUARY
JUNE
AUGUST
YES
NO
UNIVERSITY FELLOW
OTHER TYPE FELLOW
GRAD COLLEGE FELLOW
RESEARCH ASSISTANT -
TEACHING ASSISTANT
TUITION AND FEE WAIVER
INDUSTRIAL FUNDING-US
INDUSTRIAL FUNDING-FGN
FOREIGN GOVERNMENT FUNDING
FULL-TIME UNIV EMPL
SELF OR UNKNOWN
f
®(
{
11 ALGO/DATA STRUCT ANAL
12 APPL. BEHAVE & SOC SCIENCE
13 APPL IN ENGINEERING
14 APPL IN PHYSICS
15 ART. INTELLIGENCE
16 BIOMEDICAL COMPUTING
17 COMBINATORICS
18 COMPILER DESIGN
19 COMPUTATION COMPLEXITY
20 COMPUTER AIDED DESIGN
21 COMPUTER AIDED INSTRUCTION
22 COMPUTER ARITHMETIC
23 COMPUTER ARCHITECTURE
24 COMPUTER GRPHICS
25 COMPUTER NETS&DATA COMM
26 COMPUTERS & SOCIETY
27 ELECTRO-OPTICAL INFO PROCS
28 FORMAL LANG & AUTOM THE.
29 HARDWARE SYS DESIGN
30 IMAGE PROCESSING
31 INFER COMP CONSL SYS
32 INFORMATION DISP SYS
33 INFORMATION RET & SYS
34 INTERACTIVE PROG
35 LINEAR & NON-LIN PROG
36 LOGICAL DESIGN
37 MICRO COMPUTERS
38 NUMERICAL ANAL.
39 OPERATING SYSTEMS
40 PARALLEL COMP
41 PAT. REC.&MACH LEARN
42 PROBALISTIC COMPTRS
43 PROG LANG-THEOY
44 PROG LANG-PRACTICE
45 PSYCHOLOGY OF COMP PROG
46 SIMULATION
47 SPECIAL PURPOSE PROC
48 STATISTICS
49 STRUCTURED PROG
50 SWITCHING THEORY
51 THM PROV & PROG VERIF.
® Date format is: YY/MM/DD
34
U J GSR Field Table with Values and Ranges
60
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NAME
FIRST
SEX
YOB
MAR STAT
CUL CAT
COLL 1
YR 1
DEG 1
FLD 1
COLL 2
YR 2
DEG 2
FLD 2
UNITS-T
SEM ENT
APT
%TIME
SPONSOR
ACAD ADV
DEG CURR
DEG ULT
THESIS ADy
AREA
GE LD
HW
NA
SU
TC
ATT
1
16
31 ,
32
34,
228 j
35
50!
15
5
1
1
1
15
2
3
4
GE
GE
GE
GE
#GE
FOR LANG
QUAL DATE
QUAL AREA
QUAL STAT
♦QUAL ATT
PRELM DATE
PRELM STAT
MCS AREA 1
MCS AREA 2
COMMENTS
AID?
59
74
76
79
83
85
88
90
93
107
110
111
115
290
148
146
147
145
149
150
176
177
180
112
151
182
185
186
201
230
109
3
4
2
3
2
3
14
2
1
1
2
59
1
1
1
1
1
1
1
3
2
1
1
3
1
15
14
60
1
1 2
3 4
33 151
11 15
11 15
33*51
16
16
18
18
16 18
16 18
16 18
19* 20
16 18
16 18
19 20
16
15
20
1
1
25 2
1
1
1
1
1
1
1
36 i 2
40
58
58
•* ! "?
vJ
5
5
5
6
6
6
6
8
9
6
7
8
2
2
2
3
7
8
9
7
8
9
9
7
9
8
8
3
4
21
C
C
A
N
A
N
C
N
C
C
M,F
00-99
M,S
0-7
00-99
same as
College 1
N
N
C
N
C
N
N
N
N
C
A
00-99
000-999
00-99
00-99
7
1-5
2
1-5
2
00-99
7
P,F
same as GE LD
N
A
N
N
A
N
N
A
C
C
C
A
0-3
Y,N
000-999
5
00-99
P,F,R
3
0-2
000-999
5
P,F,R
3
Y,N
35
A. 3 (continued)
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Note i
CUM GPA
1320
4
♦CS200
1324
4
♦CS300
1328
4
♦300 NCS
1332
4
♦CS400
1336
4
♦400 NCS
1340
4
♦3/400
1344
4
♦ 3/4 AF MS 1348
4
♦CS490
1352
4
♦CS499A
1356
4
♦CS499B
1360
4
♦EDPSY
1364
4
♦SEM SUM
1368
4
♦SEM REG
1372
4
♦ GE PASSED 1376
4
GRD GPA
1380
4
c 0URSE
360
8
CRS. UNITS
600
4
CRS. GRADE
720
2
CRS.DATE
800
3
CRS. RANK
890
4
CRS. TOTAL
1010
4
CRS. PROF
1130
2
SSN
21
9
EDATE
220
8
57
2 21 33
2 33 151
65
64
3
3
3
3
3
3
3
3
3
3
3
3
2
2
2
3
7
8
5
9
10
11
6
vj
6
7
7
8
8
6
9
9
10
8
9
5
54
54
54 ^
74
54
74,
74
74
54
54
34
34
74'
N
N
0000-9999
0000-9999
same as #CS 200
N
C
N
A
N
N
N
N
N
N
*Jump to this field in ED ADD mode if blank is entered
**2 = numeric - must be decoded
3 = numeric - stored as 100 x value
5-11 = course information
0000-9999 6
0000-9999 6
A-E,U,S,P,DF# 4
000-999 5
0000-9999
0000-9999
11-96 7
9 digits
000-999 5
36
A. A
GSR Translation Table
(Numbers refer to notes in Field Table)
©
©
©
©
©
©
©
r
M
MALE
F
FEMALE
M
MARRIED
S
SINGLE
1
AMERICAN INDIAN
2
BLACK AMERICAN
3
ORIENTAL SURNAMED
4
SP SURNAMED
5
FOREIGN STUDENT
6
CAUCASIAN AMER
1
MS
2
PHD
3
MSTCS
4
MCS
5
OTHER
P
PASS
R
RETAKE
F"
FAIL
Y
YES
N
NO
05
A
04
B
03
C
02
D
01
E
10
DF
11
EX
12
AB
13
S
14
U
15
P
16
F
00
b
Semester-Year format is
SYY where
S = 1 = Jan.
S = 2 ■ Summer
S = 3 = Fall
and YY is last two digits
of calendar year
t —
>
11
KUCK
12
KUBITZ
13
SAYLOR
14
WILCOX
15
FAIMAN
16
REINGOLD
17
MUROGA
18
SKEEL
19
HANSEN
20
LIU, J
21
LIU,C»L
22
YAO
23
GEAR
24
MICHALSKI
25
SAMEH
26
MONTANELLI
27
MURREL
28
FRIEDMAN
29
NIEVERGELT
30
RAY
31
WALTZ
32
MURRELL
33
GILLIES
34
POPPELBAUM
35
PLAISTED
36
MICKUNAS
37
CHEN
38
DANIELSON
39
KAMPEN
40
LAWRIE
41
LINDBERG
42
LUKASZEWICZ
43
OSIN
44
ROBERTSON
45
SCHREINER
46
SHERMAN
47
SLOTNICK
48
WATANABE
49
MULLER
50
METZE
51
WITZ
52
HOHN
53
HICKS
54
PREPARATA
55
LIU
56
LIUvC
57
LEVY
58
ALSBERG
59
BEAUCHAMPS
60
D1VILBISS
61
DAVIDSON
62
UNKNOWN
63
CHIEN
64
NORTHCOTE
37
Si*
A. 5 GSR Format Table
41 15 20
20 15 20
55 15 20
1 1 20
80 1 20
41 3 11
6
80
80
40
80
I 1
3 1
7 1
II 1
15 1 80
20 1 80
O O
04 U
2 36
SEX :
2 48
YEAR OF BIRTH:
4 2
COLLEGE
4 20
YEAR-
4 25
DEGREE
4 32
FIELD
4 49
STATS (IN UNITS)
5 43
cum gpa:
5 61
grd gpa:
6 43
•tCS 200
7 43
#CS 300
8 43
*CS 400
9 43
4CS 499A
10 43 #CS 499B
6 61
#3/400
7 61
#N0N-CS 300
8 61
♦NON-CS 400
AS OF
9 61 tCS 490
8 2 UNITS TRANSFERRED
8 23 #SUM SEMES, :
9 2 DATE ENTERED:
9 23 *REG SEMES, :
2 ACAD ADVISOR:
2 DEGREE CURRENT:
25 DEGREE ULTIMATE
50 THESIS ADVISOR:
10
12
12
12
13
14
16
17
18
19
17
18
19
16
17
18
19
16
17
18
19
16
17
18
21
4
4
ll
ll
.Ll
21
23
23
23
42
44
44
42
56
58
58
AREA i:
AREA 2:
GENERAL EXAM
su:
hw:
na:
ld:
tc:
*att:
UAL EXAM
date:
STAT J
AREA :
PRELIM
date:
STAT J
LANG J
appointment:
XT I ME J
sponsor:
comments:
68 AS OF
38
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41
Appendix C
Quick Summary of ED and BR Commands
EDIT
Command
Function
ADD
CHANGE
SCHANGE
NAMEC
DELETE
STOP
CRSADD
Command
RETAIN
BACKUP
CLEAR
AVERAGE
LIST
HC
COMPLETE
PRINT (GSR only)
HASP (FAA only)
HELP
STOP
adds new record
changes a field
changes a sequence of fields
changes a name of SSN
deletes a record
stops execution
for adding course information
BROWSE
Function
retains a set of records specified by
an expression
backs up one level
backs up to set of all records
averages the specified field
lists specified fields on terminal
prints specified fields on line printer
lists complete records of retained set
on terminal
prints formatted hard copy of retained
records on line printers
prints formatted hard copy of retained
records on line printer
lists all field names
stops execution
42
Appendix D
Quick Summary of Console Commands
Command
RUBOUT
CTL H
CTL U
CRL R
CTL S
CTL Q
CTL
CTL C
Function
Back up deleting single characters,
can then retype, cursor advances.
Back up cursor, can then retype
characters.
Deletes entire line.
Display last line entered.
Stop listing.
Restart listing
Suppress output, note that this also
suppresses next command request.
Call monitor (execution stops) . Type
CONTINUE to resume.
43
H.IOGRAPHIC DATA
HET
1. Report No.
UIUCDCS-R-76-783
3. Recipient's Accession No.
Ie and Subt itle
THE DCS INFORMATION STORAGE AND RETRIEVAL
SYSTEM FOR GRADUATE APPLICANTS AND STUDENTS
5- Report Date
January 1976
6.
jjhor(s)
J. B. Larson and W. J. Kubitz
8. Performing Organization Rept.
UIUCDCS-R-76-783
No.
•rforming Organization Name and Address
Department of Computer Science
University of Illinois at Urbana-Champaign
Urbana, Illinois 61801
10. Project/Task/Work Unit No.
11. Contract /Grant No.
Sponsoring Organization Name and Address
13. Type of Report & Period
Covered
Technical Report
14.
Supplementary Notes
(Abstracts
This report describes the use, structure and maintenance of an information
storage and retrieval system implemented by the Department of Computer
Science for its own use in managing information pertaining to both graduate
applicants to the department and graduate students presently in the
department.
'Key U'ords and Document Analysis. 17o. Descriptors
Information Storage and Retrieval
Information Systems
Identifiers /Open-Ended Terms
T COSAT1 Field/Group
Availability Statement
Release Unlimited
19. Security Class (This
Report)
UNCLASSIFIED
20. Security Class (This
Page
UNCLASSIFIED
21. No. of Pages
48
22. Price
3* NTIS-35 ( 10-701
USCOMM-DC 40329-P71
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