A module should be responsible for one or more business processes (or a subprocess), a feature, (or a set of features), or a business capability. The goal is to have the business logic, for whatever it’s responsible for, concentrated in one place. It makes comprehending and maintaining it easier, but also helps with removability. In an ideal situation, you should be able to remove a feature by removing just one module from the application.
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so he was a welcoming voice on Python.
Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).