9618 · 12.2
Program Design
This lesson explores the principles of program design, focusing on top-down design, stepwise refinement, and the use of structure diagrams. It equips students with the skills to plan and structure complex programs before writing a single line of code, a crucial practice for developing robust and maintainable software.
Need to know
What you need to know
- **Manages Complexity:** Large problems become a series of smaller, solvable ones.
- **Facilitates Teamwork:** Different developers can be assigned different modules to work on concurrently.
- **Simplifies Testing & Debugging:** Each module can be tested independently (unit testing). If a bug occurs, it's easier to isolate which module is at fault.
- **Promotes Reusability:** A well-defined module, like 'CalculateVAT', can be reused in other programs.
Explanation
Program Design
- **Manages Complexity:** Large problems become a series of smaller, solvable ones.
- **Facilitates Teamwork:** Different developers can be assigned different modules to work on concurrently.
- **Simplifies Testing & Debugging:** Each module can be tested independently (unit testing). If a bug occurs, it's easier to isolate which module is at fault.
- **Promotes Reusability:** A well-defined module, like 'CalculateVAT', can be reused in other programs.