1. Discovery and scope
Interview decision-makers and representative users, list desired outcomes and identify critical workflows. Decide what must be in the first release and what can follow.
2. User journeys and architecture
Sketch screens, confirm permissions and plan system integrations. Select technology against device capabilities, connectivity, data volume and maintainability.
3. Development and validation
Build in reviewable increments, test important paths and keep the client informed about assumptions and changes. Include failures, empty states and authorization tests.
4. Release and improvement
Confirm account ownership, prepare a release checklist, test on relevant devices and support fixes and future versions through a defined maintenance plan.