CMDB: model what you will actually maintain
Most CMDB projects fail the same way — an ambitious model, a good first load, and eighteen months later a database nobody trusts enough to act on.
A CAB that re-examines the technical detail of every change becomes a queue. Its useful job is narrower — risk, timing and collisions between changes.
A change advisory board is the group that reviews and authorises changes to production systems. In its classic form it meets weekly, works through a list of proposed changes, and approves, defers or rejects each one. Almost every organisation past a certain size has one, and a large share of them are dissatisfied with it.
The dissatisfaction usually comes from scope. A board that tries to assess whether each change is technically correct duplicates the review the engineering team already did, adds days of latency, and has no realistic way of doing it well — the people in the room rarely know each system deeply. A board that instead asks about risk, timing and collisions is doing something the engineering team genuinely cannot do for itself.
Watch the emergency route. When normal approval is slow, teams reclassify ordinary work as emergency to bypass it, and the board stops seeing the changes it most needs to see. A rising emergency share is a signal about the board rather than about the systems.
A weekly board adds up to a week of delay to every normal change, which pushes teams towards larger batched releases — and larger releases fail more often and are harder to diagnose. Research on delivery performance has consistently found that heavyweight approval processes correlate with worse outcomes, not better ones. That is not an argument for abolishing oversight; it is an argument for making the standard-change path the default and reserving individual review for changes that genuinely warrant it.
What is worth retaining is not the minutes but the decisions: what was approved, by whom, for which window, with what rollback, and what actually happened. Ettex Records holds the change record per system with the outcome recorded against the approval, Ettex Sheets tracks the mix of standard, normal and emergency changes over time so the trend is visible, and the review after something goes wrong is covered in incident postmortem. The document proposing the change is covered in change request.
Being direct: this is records and spreadsheets, not an ITSM platform. Workflow, approvals and CMDB integration belong in dedicated tooling; what this covers is what the board should be for and what to keep afterwards.
The group that reviews and authorises changes to production systems, assessing risk, timing and collisions rather than re-doing technical review.
Re-examine the technical correctness of each change. That duplicates engineering review and adds latency without adding assurance.
Build a standard change catalogue of pre-approved low-risk changes so most work never needs individual authorisation.
Usually that normal approval is too slow and teams are routing around it — a signal about the process rather than the systems.
Most CMDB projects fail the same way — an ambitious model, a good first load, and eighteen months later a database nobody trusts enough to act on.
The candidates worth automating are the frequent, boring and unambiguous ones. Automating a procedure nobody trusts just produces an automated mistake.
The obligation to preserve begins when litigation becomes reasonably anticipated — which is usually earlier than the day the complaint arrives, and always earlier than anyone wants it to be.