Jump to text
On this page
Copy and source
Published source confirmed at last check

Source changed 2026-10-31 15:28:16 UTC · snapshot created 2026-10-31 15:29:16 UTC · last check 2026-10-31 16:05:18 UTC

OPS.Reference:1.6 - Use changed conditions to choose and revise the parts

A replacement-parts operation illustrates the construction from a receiving result. Customers need a configured kit soon after ordering. If common preparation remains usable across orders, the operation can prepare that part in advance and retain only the case-specific work after arrival. That choice changes the release boundary, stock exposure and resource calendar; it need not change who accepts the kit. If a new configuration requires all preparation to depend on the customer’s serial number, the common-stock premise fails. OPS.11.1:5.5 follows the change into alternative provision and a revised service choice. The old arithmetic can remain correct for the old product while ceasing to answer the new offer.

A live incident service has a different receiving condition: qualified response must remain obtainable during the covered interval. Completed incidents are useful events, but a quiet interval can still provide the promised readiness. Here the operation can prepare tools, access and knowledge, and reserve qualified response; it cannot store a completed future response for an unknown incident. Admission, staffing and scheduled improvement must be compared with that continuing service condition. OPS.8.2 tests whether an assisting resource can actually be released and restored, OPS.12 retains the person’s other duties and recovery, and OPS.13 establishes the feasible promise. A rise in demand can require a different reserve or service agreement without changing the incident method.

An investigation instead needs a warranted answer to a question whose solution path is partly unknown. Counting completed experiments as delivered answers would change the result being promised. A failed hypothesis may be valuable if it changes which continuation is justified. Use the research or engineering method to identify that information gain and the next useful inquiry; use OPS to obtain the qualified people, equipment, sequence and support it needs. A new discovery can invalidate the planned work, while the completed experiments remain evidence. Reopen the method or question that changed rather than forcing the investigation to complete an obsolete task list.

These situations share a connection between receiving result, possible action, dependencies, provision and learning from consequences. They require different units, protection and grounds of inference. The common account therefore selects and changes the operating methods; it does not prescribe one production line, one maximized throughput measure or one universal sequence. OPS.23 helps assemble the resulting operating judgement. A direct method remains sufficient when its inputs and receiving connection are already settled.