implementation-layering

Feature implementation layering decomposes work into a Layer 0 minimum working unit and subsequent hardening layers with explicit deferrals, exit evidence, and promotion criteria to guide bounded releases.

Bounded synthesis is a layering model that prevents scope from swallowing a single release by defining a minimum proof of concept and adding bounded improvements while preserving prior non-regression guarantees.

Promotion decisions rely on explicit exit evidence and a value/cost heuristic captured during planning to guide layer boundaries and validate that a layer meets its proof and non-regression guarantees.

Use implementation layering when planning risks merging scope into a single release, making it hard to reason about risk, validation, and progress, and you need to prove the concept exists first.

Implementation layering does not require specific frameworks or dependencies, as it focuses on identifying the target and output location to draft a Layer 0 proof and plan L1–L3 hardening layers.

The best way to plan a proof of concept is defining Layer 0 as an end-to-end slice that proves the concept exists, then planning L1–L3 hardening with explicit deferrals and promotion criteria.