SYSE.22:3 - Forces

• Stable identities preserve evidence and decisions, while stale problem or family boundaries make that continuity misleading.
• Retained variants preserve stepping stones, while a project still needs finite current commitments.
• Shared family architectures reduce repeated Work, while one environment or affected System can require a distinct branch.
• Several options can remain non-dominated, while the next project move still needs a choice or probe.
• Novelty can open a useful region, while admission, safety, evidence, integration, and service constraints remain.
• Dependencies support selective reopening, while records that change no decision add maintenance cost.
• A local gain can move cost, risk, Work, or failure exposure to another affected System.