gsd-mvp-phase

Converting a product phase into an MVP plan involves capturing it as an As a / I want / So that user story, then applying SPIDR splitting to scope a bounded vertical slice for execution-ready planning.

SPIDR splitting in MVP phase planning decomposes scope across Spikes, Paths, Interfaces, Data, and Rules. It prevents oversized phases by breaking them into smaller, manageable vertical slices for execution.

You need vertical slice scoping when a proposed product phase is too large for a bounded MVP. It keeps product work focused on a single execution-ready slice instead of expanding into a vague roadmap.

Structure user stories for MVP phase preparation using the As a / I want / So that format. This captures the phase requirement clearly before applying scope validation and SPIDR-based decomposition.

Yes, gated validation is required. It ensures MVP scope consistency by validating the decomposed vertical slice before writing the phase into MVP mode and delegating downstream plan-phase updates.

The best way to prevent scope creep during product phase planning is applying SPIDR decomposition to check if the phase is too large, bounding work to a single vertical slice with gated validation before execution.