We use Azure DevOps and SDLC management tools of your choice like JIRA, Confluence etc. to document and organize the requirements, create product backlog's and work breakdown structure. Backlog consists of Epics/Features/User Stories and Tasks for the finalized scope. Once the backlog is completed, we create two week long Sprints for execution based on priority items and business goals.
Test cases are written to check whether each deliverable meets the users' requirements. Manual test cases define steps testers perform, including those shared across test cases.
Writing Test cases and Test Plans and getting approval from client
Acceptance criteria definition, reviews, and approval
Setup Development environment
Setting up the CI/CD pipeline and branching for the Development team
Setup staging and UAT environment
Deployment and release planning
Actual deployment and release of Sprints
Agile requirements gathering is a practice the teams often perform on the fly. Developers update requirements between iterations, lack of requirements could throw many business or technical processes into chaos, but Agile development thrives in an iterative approach. Agile trades certainty for adaptability.