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STR.14:3 - Forces
| Force | Tension |
|---|
| Present contribution and future capability | Development needs resources that may also protect current service. |
| Separate responsibility and joint feasibility | Different owners can authorize contributions without making their combination viable. |
| Timing and completeness | A smaller first increment helps only if it still supplies a complete useful result. |
| Multiple subjects and one strategic purpose | Product, organization, person and platform can develop together without becoming one subject. |
| Local gain and moved burden | A visible improvement can create delay, cost or loss in another scope. |
| Flexibility and carrying cost | A fallback preserves later choice while consuming work now. |