OPS.8.2:4.4 - Compare useful gain with the whole interruption cost

Compare feasible auxiliary candidates with leaving the interval unused. Retain the result each candidate could supply and the work needed to obtain it, including preparation, interruptions, lost partial progress, later auxiliary resumption and any new obligations.

An already-paid salary does not make those consequences vanish. Use OPS.14 for a financial comparison when it can change the decision. Use OPS.12 when repeated transitions can impair continuing human service. Observe a trial through OPS.16 or ME.11 when an unresolved operating effect justifies one; do not demand a new experiment when the available comparison already settles the choice.

If development is the intended gain, DOCA.1 and DOCA.4 construct the opportunity and transition. HCD.2 adds the practice, feedback and support needed for a human capability gain. An interruptible activity can fit the reserve and still teach little. ME.1 and ME.11 support a method-improvement question and its trial. These contributions establish the value being sought; the return construction establishes compatibility with the operation.

Choose the simplest adequate arrangement. The choice may favor a short useful unit, preparation outside the protected resource, another resource, a later window or continued availability. Extra work is not automatically the best use of every interval.