Building Evolutionary Architectures by Neal Ford

Author:Neal Ford
Language: eng
Format: epub
Publisher: O'Reilly Media
Published: 2017-10-03T04:00:00+00:00

Tip

Refusing to refactor schemas or eliminate old data couples your architecture to the past, which is difficult to refactor.

Case Study: Evolving PenultimateWidgets’ Routing

PenultimateWidgets has decided to implement a new routing scheme between pages, providing a navigational breadcrumb trail to users. Doing so means changing the way routing between pages has been done (using an in-house framework). Pages that implement the new routing mechanism require more context (origin page, workflow state, and so on), and thus require more data.

Within the routing service quantum, PenultimateWidgets currently has a single table to handle routes. For the new version, developers need more information, so the table structure will be more complex. Consider the starting point illustrated in Figure 5-4.

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