What it means
Detection data-source requirements specify the events, fields, timestamps, identity context, retention, quality, and availability an analytic or investigation needs.
Why it matters
Security operations become reliable only when people, process, telemetry, tooling, and decision authority work as one measurable system.
Practical focus
- Define the operational outcome and decision owner
- Document inputs, workflow states, escalation, and evidence
- Measure quality, timeliness, coverage, and workload together
- Tune the practice through analyst feedback and validation
Common mistakes
- Buying a tool before defining the operating need
- Measuring ticket volume instead of decision quality
- Leaving handoffs or authority ambiguous
- Treating an initial workflow as permanently finished
Certification relevance
This subject appears in or supports the following certification bodies of knowledge: