Chapter 3. Designing for performance

No matter what kind of app you’re building, a number of key usage scenarios are essential for the success of your app. A shopping app must enable users to quickly find and purchase items. A news app must be able to quickly present users with what’s going on in the world. These key scenarios are what your app does well. This is where your app provides value to the users, so you need to make sure your design and architecture support them efficiently. All your key scenarios should provide a good user experience. That means they should look good and perform well. By keeping performance in mind for your key scenarios, you will reduce the risk of making the wrong architectural decisions that would be expensive to ...

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