Patch management involves a cycle of steps to keep computer systems secure and up to date. First, you identify which systems need patches. Then, you check if patches are available from software vendors. Before applying patches widely, you test them in a safe environment to avoid problems. After successful testing, you schedule and deploy the patches to all affected systems. Once deployed, you verify that the patches installed correctly. Finally, you monitor the systems for any issues caused by the patches. This process repeats continuously because new vulnerabilities appear regularly. The execution table shows each step and its result, while the variable tracker follows key information like system lists and deployment status. Understanding these steps helps ensure systems stay protected without disruption.