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NOT.1:3 - Forces
| Force | What must be reconciled |
|---|
| Discrimination and economy | Showing more distinctions increases expression and reading work; omitting one can prevent the required conclusion. |
| Reading and changing | A compact finished description can be expensive to revise. |
| Shared conventions and reader preparation | Familiar conventions save explanation for one group while imposing learning or translation on another. |
| Expression and environment | A distinction may be carried by marks, layout, an interaction or available context. Changing the medium can remove that support. |
| Present work and discovery | Trying a notation can expose a useful operation absent from the initial requirements. |