Issue log and change log are documents that should be used to record the event where the project team has just experienced an unexpected event and implemented a work-around. An issue log is a document that tracks and records any issues or problems that arise during a project and how they are resolved. An issue log can help to monitor and control the project performance and quality and prevent any negative impacts on the project objectives and deliverables. A change log is a document that tracks and records any changes or modifications that are made to the project scope, schedule, cost, quality, or resources during a project. A change log can help to document the change request, approval, implementation, and impact of each change and ensure traceability and transparency.