what is Bottom-up design

Bottom-up design is a software development approach that starts with building the smallest, most basic components (modules or functions) and then combines them into larger, more complex structures. It's often used in conjunction with top-down design, where the overall system is broken down into smaller subsystems. 

Key characteristics of bottom-up design:

• Modular approach: The software is divided into smaller, reusable modules.

• Incremental development: Modules are developed and tested individually before being combined.

• Flexibility: Changes to one module can be made without affecting the entire system.

• Reusability: Modules can be reused in other projects.

Advantages of bottom-up design:

• Faster development: Smaller modules can be developed and tested more quickly.

• Easier testing: Modules can be tested independently.

• Increased reusability: Modules can be reused in other projects.

Bottom-up design is often used in combination with top-down design to create a more efficient and effective software development process.