| Red Flag | Why It’s a Problem | |----------|--------------------| | No version number or date | Impossible to know which spec is current | | “TBD” or “to be defined” for critical interfaces | Scope creep or rework guaranteed | | Contradictions between text and data tables | Ambiguity leads to failed acceptance tests | | No error handling definition | System will crash or silently corrupt data | | Missing non-functional requirements (latency, concurrency) | Will fail under real load |