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OPS.15:3 - Forces
| Force | Practical tension |
|---|
| useful summary and retained meaning | A compact number can hide the population, exceptions or source loss that determines its use. |
| common subjects and unlike views | Several readers can need different accounts of the same operation. |
| current information and collection cost | Fast refresh matters only where the decision or evidence can change quickly enough to use it. |
| comparable values and changed conditions | A new definition, work mix or measurement method can make old and new values incomparable. |
| sufficient decision evidence and unresolved detail | A bound can settle the choice even while some observations remain unknown. |