STR.6:4.3 - Expose joint conditions and the price of future exercise

For each retained option, ask who could exercise it, under which permission and resource conditions, by when and with what preparation. State a material expiry, switching delay or foregone contribution. An option that cannot be exercised before its useful window closes has lost that use even if its description is still stored.

Examine dependencies across options. Several variants may need the same scarce team, customer agreement or platform. They can be genuine alternatives without being feasible together. Use STR.8 when the capabilities or business-model conditions an option needs are unclear. STR.14 resolves an actual conflict in simultaneous work.

Separate retaining an explanation from retaining a capability to act. Keeping rejected-design notes may be inexpensive. Preserving a working interface, contracted capacity or trained support can impose continuing cost. Include the contribution sacrificed to carry that option.