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Creativity in Software Design
- Designing software is hard because creativity is needed in building intermediate representations and data abstractions.
- The input-output parts are often automatic; the challenge lies in what goes in between.
Intention Shapes Software Evolution
- Software design hinges on understanding the intention behind the system’s use, which shapes its evolution.
- High-level goals translate down through layers, influencing stable and changing intermediate descriptions.
Manage Assumptions for Stability
- Identify and minimize assumptions your code makes about the rest of the system to improve stability.
- Localize incidental assumptions to prevent widespread changes when implementation details evolve.