Greg Sier & Associates
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The operating model

A ten-part argument that moves from what an asset is — through work, lifecycle, production, budgets and shutdowns — to a connected operating model and the evidence behind it.

10 parts

  1. 01The asset register is not the asset systemAn asset register records identity and hierarchy. An asset system should also represent operating state — usage, condition, life forecasts, maintenance demand and the economics of keeping the asset.
  2. 02The work order is not the maintenance systemThe work order is one transaction inside a larger model of evidence, assessment, decision, execution, condition, history and future maintenance demand.
  3. 03One work model may not fit every assetCommon asset, work, people and cost structures are worth sharing — but roads, structures, fixed plant and shutdowns identify, schedule and forecast work differently enough that one universal work-order workflow rarely fits them all.
  4. 04Production consumes asset lifeMaintenance forecasting becomes more useful when production demand, utilisation and component life are treated as parts of the same model.
  5. 05Maintenance budgets should describe the future, not just the pastHistorical expenditure is a useful baseline, but maintenance demand comes from what assets are expected to do next — so a budget should also carry a forward view of commitments, forecast work, resource limits and expected outturn.
  6. 06Should operations have a ledger?Finance preserves movements and derives a position from them. Operations accumulates hours, cost, commitments, life consumption and risk across scattered systems — a ledger-like layer could record those movements and explain where an asset, shutdown or site stands and why.
  7. 07A shutdown is an operating eventA major shutdown is not just a large maintenance job — it is a temporary operating state where production, maintenance, contractors, procurement, isolation and commissioning converge on a constrained window, and it deserves to be modelled as a first-class operating event.
  8. 08Resource planning starts before the work orderMuch of tomorrow's maintenance demand is already visible in today's condition, production plan and lifecycle forecast — so labour, skills, parts, contractors and workshop capacity can be forecast and constraint-tested long before the work order exists.
  9. 09Health is a position, not a traffic lightA single health score hides more than it shows. Treating asset or entity health as a multidimensional, time-phased operational position — condition, lifecycle, cost, production exposure, resource readiness, risk — keeps the traffic light connected to evidence and decisions.
  10. 10From maintenance records to operating evidenceReliable records are essential, but maintenance data earns its value when history becomes evidence — inputs to a continuously evolving, explainable understanding of where each entity stands and what will happen next.
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