Why this decision matters
Data, outcomes, interfaces, cost and field environments can all be uncertain, so focused validation provides evidence before the scope expands.
Validate-first delivery delays irreversible investment until critical assumptions are tested and lets the project continue, adjust or stop at a controlled cost.
Conditions to confirm before development
- Test the highest-value and highest-risk part first
- Freeze validation data, environment, model and evaluation definitions
- Record success conditions, failure causes and uncovered scope
- Reassess concurrency, permissions, performance and operations when scaling
Implementation and delivery approach
Build only the decision-making loop during validation, then add architecture, functions, governance, integration and operations based on evidence.
Each expansion should reference prior test results and risks and explain changes in acceptance and resources.
Acceptance boundary
Passing validation does not guarantee automatic scaling. More users, data, devices and business responsibility introduce new risks.