A-LevelComputer ScienceSoftware development9618/23 · May/June 2022 · Q86 Marks
The following diagram shows the incomplete waterfall model of the program development life cycle. [Diagram shows incomplete waterfall model with 'Analysis' and 'Maintenance' labels]
- (a)Complete the diagram.[3]
- (b)Explain the meaning of the downward and upward arrows. Downward arrows Upward arrows[2]
- (c)Identify another type of model for the program development life cycle.[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2022). The mark or mark type is shown in brackets.
- [3] (a) One mark for: (at least) three intermediate shapes with at least one valid stage names
- [3] (a) Up and Down arrows between each pair of shapes
- [3] (a) Design – Coding – Testing labels in correct sequence
- [2] (b) Downward arrows: result from one stage is input / passed to the next
- [2] (b) Upward arrows: more work is required at a previous stage to complete the current stage
- [1] (c) For example: Iterative / Rapid Application Development (RAD)
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