In which stage of the SDLC is the software assessed for performance to prevent obsolescence?

The stage of the Software Development Life Cycle (SDLC) where the software is assessed for performance to prevent obsolescence is the maintenance phase. This stage involves ongoing activities after the software has been deployed and is actively being used. During maintenance, developers monitor the system for any issues that may arise, including performance problems, user feedback, and changing requirements.

Additionally, preventive measures are taken to ensure that the software remains relevant and efficient. This can include updates to fix bugs, enhancements to meet new user needs, and adjustments to ensure compatibility with new technologies or standards. Regular assessments in this phase help avoid obsolescence by ensuring that the software adapts to the evolving technological landscape and continues to serve its intended purpose effectively.

The other stages do not typically focus on ongoing assessment for performance. Evaluation is more about assessing the software's overall quality prior to release, integration and testing focus on ensuring that different components of a system work together correctly before deployment, and disposal relates to the retirement and removal of outdated software. Thus, the maintenance phase is critical for the sustainable performance of software over time.