Build a complete cost baseline
Include discovery, delivery, infrastructure, maintenance and acquisition effort. Consider the internal time needed to operate the product. For an internal tool, compare the work saved with the time required for adoption and support. For a commercial app, separate revenue from contribution after payment and operating costs.
Measure the outcome that matters
Track activation, retention and the action that creates value, such as a completed booking or a processed request. Connect product metrics to the business model. Compare cohorts and avoid judging success from downloads alone. Record a baseline where possible so that improvements can be assessed against an actual previous process.
Use evidence to guide investment
Model conservative and optimistic scenarios, then revise them using real usage. A focused first release limits the cost of testing assumptions. Prioritise changes that address a measured constraint in the customer journey or operation. Review the expected payback alongside risks and resources; a development team cannot guarantee a commercial return from code alone.