Tool, Build or Expert?

Start with the job, the people and the systems you have. See every contribution to the route decision—and every prerequisite that can stop a rollout.

Who owns the work?

Delivery-route responsibilities; workflow-specific terms must be confirmed
Task	Tool	Build	Expert
Schedule extraction	Confirm supported formats and review	Own parser and source mapping	Define and test format coverage
Addendum comparison	Verify change and source display	Own reconciliation rules	Prove conflict and omission handling
Supplier-price connection	Check existing supported feeds	Own permission and matching logic	Bound integration and commercial rules
Labor assumptions	Confirm editable contractor factors	Preserve units and history	Do not outsource estimator judgment
Approval routing	Test permissions and audit trail	Own authorization controls	Agree approval boundary
Maintenance	Confirm support and renewal	Fund named internal owner	Contract support and exit