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Paper 2 - Computational thinking, algorithms & programming - 2.3 Producing robust programs
infoWhy this? It is important for students to include defensive design and incorporate testing procedures during program development.
scheduleWhy now? This unit develops understanding of the importance of ensuring the inputs from a user are checked as part of the development process.
neurologyYou need to know
- Understand issues programmers should consider to ensure a program caters for all possible inputs.
- Understand how to create a program that deals effectively with invalid data.
- Understand the use of authentication to confirm the identity of a user.
- A selection of different methods to validate data.
- Understand the need for and different methods of incorporating maintainable features within a program.
- The purpose of testing.
- Understand the difference between iterative and terminal testing.
- Understand the difference between logic and syntax errors.
- how to select and use suitable test data to cover normal; boundary and invalid/ erroneous.
rocket_launchYou must be able to
- create programs that cater for anticipated misuse.
- Create programs that check for Authentication.
- Create programs using a selection of methods to validate user input i.e. range; presence; format.
- Create programs incorporating maintainability including use of subprograms; naming conventions; indentation and comments.
- Identify syntax and logic errors in a program and refine it.
- Select a range of data to test a program both for iterative and terminal testing.
- Create a test plan.
Revision Quiz
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