Context and Processing View

Context view

The role of the User in the context diagram from the previous chapter is—at this point—less than ideal. It was tolerable as an initial description of the interfaces to the application. As we work through the design, we can see that a more specific term like “Researcher” might be a better description for someone researching a sample and looking for a classification. Here’s an expanded context diagram with a new consideration of users and their authorized actions:

The Botanist is responsible for one kind of data and has two valid operations. The Researcher is responsible for a different kind of data and has only one valid ...