01 / Siloed requirements
Battery and software teams work in parallel, reconcile in series
Each domain maintains its own requirement set. Reconciliation is manual, asynchronous, and nobody owns the seam.
02 / Late visibility
Integration conflicts surface at CDR, not PDR
Cross-domain mismatches live undetected until a formal review forces the comparison. By then, rework is measured in weeks.
03 / Change blindness
Every requirement change becomes a multi-team coordination event
No automated downstream visibility. A thermal requirement change kicks off Slack threads, not a system update.