What is Test Plan in STLC | QA Testing Training

Test plan is a high level living document that contains
Document control
Document history
Approvals
Author signatures
Approvers
PURPOSE
SCOPE
Exclusion
Definition/acronyms
TESTING OBJECTIVES
TESTING PHASE
Testing approach
Test case specification
TEST RESOURCES
Automated test tools
TEST ENVIRONMENT
TEST EXECUTION SCHDULE
DEFECT TRACKING
TESTING SUMMARY
Completion of testing
After production rollout
Limitations n assumptions
References
RISKS
Appendix A- artifacts