Handbook
Product-Spark — Product Spark
Potentially shippable product slice — PoC, MVP, or phased increment; aliases release slice, product increment.
What it is
Planning unit in PLANNING-FLOW.md — often aligns milestone M1. Assay Gate at boundary.
When people say this
When committing roadmap slices spanning multiple iterations — not a single afternoon task.
Where it lives
blueprints/sdlc/methodologies/forge/planning/
How it fits the ecosystem
Contains Forge iterations; rolls up Ingots and Sparks beneath WBS hierarchy.
Typical usage in plans and chat
Never confuse with Forge Spark (task) or discipline/product spike learning work.
Do not confuse with
Forge-Spark
Related terms
Disambiguation bridges
Term page — canonical catalog entry product-spark.