incremental-implementation

Incremental slices break large feature development into small, testable units by implementing one piece, testing it, verifying it, and committing before expanding. Each slice leaves the system in a working, testable state to reduce deployment risk.

The increment cycle for multi-file refactoring follows the sequence: Implement, Test, Verify, Commit. This cycle enforces continuous verification after each slice, ensuring the project remains buildable and all tests pass before proceeding to the next change.

Use vertical slicing strategies for feature launches and architectural updates when changes touch multiple files. Vertical slices deliver end-to-end functionality through the entire stack, keeping the system usable and testable at all times during the implementation process.

Incremental implementation supports risk-first slicing, which tackles the riskiest parts of a refactor early, and contract-first slicing, which defines API and UI contracts first. Both strategies maintain continuous verification throughout the increment cycle.

The best way to handle architectural updates without breaking the build is to divide work into manageable slices and validate at each step. This incremental approach requires the project to remain buildable with passing tests after every committed slice.