Software test process(general)

Input: market team research, customer requirement,
Output: UX/UI/UE, design spec

Input: UX/UI/UE, SPEC, design doc, function flow
Output: Test plan, test case, user manual(optional)

Input: Test case, UX/UI/UE definition,
Output: Bug tracking

Should modify the TC and TP in time to meet the requirement change, that's important when I worked on it. Be remember that SPEC changed momentarily.