Midterm

Question 1

Sequential Diagrams

Answer 1

Flowchart - diagram of actions including individual actions and decision points

Question 2

Decomposition Diagrams

Answer 2

function chart, hierarchy charts. overall function, process involved and activities, tasks. Describes the function breakdown or decomposition of a higher level.

Question 3

IPO/HIPO Chart

Answer 3

Input, Processing, Output

Question 4

Steps in program Development

Answer 4

DODTCR - Define, Outline, Develop, Test, Code, Run

Question 5

Source code

Answer 5

Written by programmer

Question 6

Object version

Answer 6

machine code that is native to the machine

Question 7

Compiler

Answer 7

translates source code to object code

Question 8

Maintenance Criteria

Answer 8

UMPTREU - Understandable, Modifiable, Portable, Testable, Reliable, Efficient, Usable.

Question 9

Structure chart purpose

Answer 9

function, process, activities, tasks

Question 10

Cohesin

Answer 10

refers to internal content of module, one simple piece of work, controls subordinate modules or one simple piece of work

Question 11

Coupling

Answer 11

relationship between modules. Can be isolated in relation to other modules, relationship to other modules is only through data reference

Question 12

4 Divisions

Answer 12

Identification, Environment, Data, Procedure

Question 13

Identification division

Answer 13

mandatory entries: program-id, Environment division, Data division, Procedure division

Question 14

Environment division

Answer 14

establishes the working environment for the program

Question 15

Data division

Answer 15

defines and describes the file, record and field structure to be used in program

Question 16

Procedure division

Answer 16

contains all executable instructions for: input, output, data manipulation, arithmetic operations, conditional operations, stop run

Question 17

Division structure

Answer 17

division, sections, paragraphs, sentences, clauses

Question 18

Configuration section

Answer 18

option for documentation

Question 19

input-output section

Answer 19

required if external file is used as input/output. used to identify the files used in the program, references filename in program to file referenced by OS. Select statement used to identify name of file in program, assign statement used to identify and reference the name through the OS.

Question 20

file types can be:

Answer 20

line sequential, indexed or relative, filetype is the organization clause

Question 21

File section

Answer 21

describes file, record and field structures for input and output files through file description paragraph(FD).

Question 22

Working storage section

Answer 22

other record and field structures not directly associated with a file. Working fields, flags, accumulation fields, counters. Also used to describe output (print) lines when more than one type of print line is required.

Question 23

Screen section

Answer 23

declare full screen formats for input or output

Question 24

Elementary items

Answer 24

lowest level of data definition, always have PICTURE clause, highest level number

Question 25

group items

Answer 25

composed of elementary items or group items, no PICTURE clause, size is = total elementary/ group items contained

Question 26

types of PIC

Answer 26

Numeric PIC 9 Alphabetic PIC A Alphanumeric PIC X

Question 27

MOVE

Answer 27

move data from one field to another. Must be used with compatible fields

Question 28

PERFORM

Answer 28

used to execute specific portions of code

Question 29

READ

Answer 29

used to bring in data/records from external file

Question 30

WRITE

Answer 30

used to output data/records to external file. You write a record, not file

Question 31

OPEN

Answer 31

make file accessible for either input or output

Question 32

CLOSE

Answer 32

close an external file once processing is complete

Question 33

STOP RUN

Answer 33

terminates execution of program

Question 34

Do files have to be open before being read or written to

Answer 34

yes

Question 35

sequential files

Answer 35

can be input or output NOT BOTH. Records physically ordered one after another

Question 36

numeric field move to numeric field, receiving field will pad which side with zeros

Answer 36

left most position

Question 37

where will alphabetic or alphanumeric fields be padded

Answer 37

the right most position

Question 38

is numeric to alphanumeric moves valid

Answer 38

only if integer

Question 39

does numeric data have a decimal point or assumed decimal point

Answer 39

assumed decimal point

Question 40

does V consume a byte

Answer 40

no

Question 41

movement of data in numeric fields

Answer 41

right to left before (V), left to right after (V), v is aligned with sending field

Question 42

TO

Answer 42

adds to field, included in arithmetic expression

Question 43

GIVING

Answer 43

gives result in field, not included in arithmetic expression

Question 44

ROUNDED

Answer 44

allows rounding to lowest order byte of declared field where the result will be stored

Question 45

**

Answer 45

exponent

Question 46

ON SIZE ERROR

Answer 46

flag whether the result is too large for target field to handle. If error occurs – subordinate statement will be preformed

Question 47

Fields involved in arithmetic expressions

Answer 47

must not be edited fields, must be examined for zero, large enough to handle results, need to have a sign noted if positive and negative values are expected

Question 48

Signed field

Answer 48

character S in picture field denotes signed numeric value, S does not consume a byte. Allows output editing with + or -, recognition of positive and negative values from calculations or input.

Question 49

Editing fields

Answer 49

only with printed output record structures. Cannot be moved to non-edited fields. Cannot be used in arithmetic instructions. Difference between numeric and edited numeric field

Question 50

$

Answer 50

doesn’t move, change position on output, occupies 1 byte. Ex pic $9999 = $1234. Moves to fill the least significant zero. Ex. Pic $$$9 – value in= 0034 value out = bb$34. B=blank

Question 51

.

Answer 51

decimal point, lines up with assumed decimal position (V). decimal values move left to right, int move right to left

Question 52

,

Answer 52

comma, consumes a byte.

Question 53

*

Answer 53

asterisk, replaces all leading zeros and insignificant edit characters such as commas.

Question 54

Z

Answer 54

Blanks all leading zeros.

Question 55

+ and -

Answer 55

can be fixed (after, placed in least significant position) or floating (before).

Question 56

CR and DB

Answer 56

used to indicated negative value, print if field is negative otherwise print two blank spaces. Consume 2 bite positions.

Question 57

relational operator

Answer 57

expresses the comparison or test to be made between to operands (ex. >, =,

Question 58

hierarchy for conditional statements

Answer 58

brackets, relation conditions, NOT, AND, OR

Question 59

AFTER/BEFORE ADVANCING PAGE

Answer 59

allows for carriage control

Question 60

ADVANCING .. LINE

Answer 60

must be numeric constant or numeric value

Question 61

INITIALIZE IDENTIFIER

Answer 61

identifier can be a group or elementary item. Sets items to default values

Question 62

REPLACING

Answer 62

specify type of field and replacing value

Question 63

ACCEPT

Answer 63

allows for data to be entered at the keyboard.

Question 64

DISPLAY

Answer 64

display field name or literal on screen.