IGCSE Computer Science Paper 2 Crossword: 7a Program Development Life Cycle (Modules 71–82)
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Date:
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Crossword
Read each clue and write the matching term in the grid. Numbers in brackets show the letters in each word.
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2
3
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5
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8
9
10
Across
- 1. The largest and smallest acceptable values plus the nearest rejected values either side of each limit, e.g. 0 and -1, 120 and 121 for a range of 0 to 120. Word 1 of: ________ test data (8)
- 4. Working through an algorithm by hand, line by line, using chosen test data as inputs and recording each step in a trace table, to see what it does and find logic errors without running it. Word 2 of: dry ___ (3)
- 5. To set up a trace table, give each variable its own ______ in the order they first appear, then add a row each time a value changes. Leave unchanged cells blank. Word 2 of: ___ ______ per variable (6)
- 10. The largest and smallest values a program should accept, such as 0 and 120 for a range of 0 to 120. They sit exactly on the limits and the expected outcome is accepted. Word 1 of: _______ test data (7)
Down
- 2. A typical, valid value well inside the allowed limits, which the program should accept. Example: an age of 30 for a range check of 0 to 120 is accepted. Word 1 of: ______ test data (6)
- 3. Test data of the wrong type or outside the allowed values, such as -5 or letters for an age, or an empty input. The program should reject it. Word 1 of: ________ test data (8)
- 6. The trace table column where you write each value or message shown by an ______ statement, on the row where it happens. Text in quotes is copied exactly as the ______. Word 1 of: ______ ______ (6)
- 7. Pick one normal, abnormal, extreme and boundary value for the ______ and say accept or reject. For 0 to 100: 50 normal, -5 abnormal, 100 extreme, 101 boundary. Word 1 of: _____ check test data (5)
- 8. Word 1 of the term in 5 Across: ___ ______ per variable (3)
- 9. Test data for a check includes values that pass and fail it: for an 8-character minimum, 8 characters is accepted, 7 is rejected, and an empty string fails a presence check. Word 1 of: ______(Password) >= 8 (6)
Answer Key
IGCSE Computer Science Paper 2 · Modules 71–82
1B
O
U
2N
D
3A
R
Y
O
B
4R
U
N
M
O
A
R
5C
6O
L
U
M
N
7R
U
A
A
T
L
N
P
8O
G
U
N
9L
10E
X
T
R
E
M
E
N
G
T
H
Across
1BOUNDARY — The largest and smallest acceptable values plus the nearest rejected values either side of each limit, e.g. 0 and -1, 120 and 121 for a range of 0 to 120. Word 1 of: ________ test data
4RUN — Working through an algorithm by hand, line by line, using chosen test data as inputs and recording each step in a trace table, to see what it does and find logic errors without running it. Word 2 of: dry ___
5COLUMN — To set up a trace table, give each variable its own ______ in the order they first appear, then add a row each time a value changes. Leave unchanged cells blank. Word 2 of: ___ ______ per variable
10EXTREME — The largest and smallest values a program should accept, such as 0 and 120 for a range of 0 to 120. They sit exactly on the limits and the expected outcome is accepted. Word 1 of: _______ test data
Down
2NORMAL — A typical, valid value well inside the allowed limits, which the program should accept. Example: an age of 30 for a range check of 0 to 120 is accepted. Word 1 of: ______ test data
3ABNORMAL — Test data of the wrong type or outside the allowed values, such as -5 or letters for an age, or an empty input. The program should reject it. Word 1 of: ________ test data
6OUTPUT — The trace table column where you write each value or message shown by an ______ statement, on the row where it happens. Text in quotes is copied exactly as the ______. Word 1 of: ______ ______
7RANGE — Pick one normal, abnormal, extreme and boundary value for the ______ and say accept or reject. For 0 to 100: 50 normal, -5 abnormal, 100 extreme, 101 boundary. Word 1 of: _____ check test data
8ONE — Word 1 of the term in 5 Across: ___ ______ per variable
9LENGTH — Test data for a check includes values that pass and fail it: for an 8-character minimum, 8 characters is accepted, 7 is rejected, and an empty string fails a presence check. Word 1 of: ______(Password) >= 8