Link to current text
SYSE.27:3 - Forces
| Force | Practical tension |
|---|
| Independent change | Contributors need room to improve their work; consumers need stable enough behavior to rely on. |
| Compatibility | Retaining every old behavior can become costly; silent breakage transfers that cost without agreement. |
| Shared extension | A reusable contribution can reduce duplication while creating new maintenance and support work. |
| Technical acceptance | Tests can establish a bounded behavior; they cannot grant permission to change another party’s provision. |