What is the focus of incremental development and testing?

The focus of incremental development and testing is on writing small portions of code and testing them as they are developed. This approach allows developers to build programs piece by piece, ensuring that each part functions correctly before moving on to the next segment. By testing small increments, developers can more easily identify and fix issues early in the development process, leading to improved code quality and reduced complexity when compared to attempting to manage and debug a large portion of code all at once.

This method also enhances collaboration among team members, as it encourages frequent integration and testing of different parts of the program, which can lead to more efficient development cycles. Incremental development is particularly valuable in agile methodologies, where requirements can evolve, and the focus is on delivering functional software in manageable increments.