An incident postmortem is a written review held after an outage or serious failure. It records what happened, why it happened and how the response went, then commits to specific changes that make a repeat less likely.
Incident response is the planned process an organisation follows to detect, contain, investigate and recover from a security incident. It ends with lessons that strengthen defences.
Mean time to recovery (MTTR) is the average time it takes to restore a service after a failure or incident begins. It shows how quickly a team detects, responds to and fixes problems.
Scrum is an agile framework in which a small, cross-functional team delivers work in fixed-length cycles called sprints. It follows defined roles, events and artefacts that make progress visible and regularly inspected.
Site Reliability Engineering (SRE) is an approach to running production systems that applies software engineering to operations. It sets measurable reliability targets and replaces repetitive manual work with automation.
Disaster recovery is the set of plans, tools and procedures for restoring systems and data after a major outage, data loss or regional failure. It aims to resume service within agreed time and data-loss limits.
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