Operations testing is designed to determine whether the system is executable during normal system operations. It evaluates both the process and the EXECUTION of the process. During DIFFERENT phases of SDLC, it can be used as follows

Phase 1: Requirements Phase: During this phase, operational requirements can be EVALUATED to determine the reasonableness and completeness of these requirements.

Phase 2: Design Phase: During this phase, the operating PROCEDURES should be designed and thus can be evaluated. 

Examples of Operations Testing

1. Verifying that the file labeling and protection procedures function PROPERLY. 
2. Determining that OS supports features, perform the predetermined tasks.

Operations testing is designed to determine whether the system is executable during normal system operations. It evaluates both the process and the execution of the process. During different phases of SDLC, it can be used as follows

Phase 1: Requirements Phase: During this phase, operational requirements can be evaluated to determine the reasonableness and completeness of these requirements.

Phase 2: Design Phase: During this phase, the operating procedures should be designed and thus can be evaluated. 

Examples of Operations Testing