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You have applied the Microservice architecture pattern. Services are developed by business capability/subdomain-oriented teams that are also responsible for the user experience. Some UI screens/pages display data from multiple service. Consider, for example, an Amazon-style product detail page, which displays numerous data items including:
Each data item corresponds to a separate service and how it is displayed is, therefore, the responsibility of a different team.
How to implement a UI screen or page that displays data from multiple services?
Each team develops a client-side UI component, such an AngularJS directive, that implements the region of the page/screen for their service. A UI team is responsible implementing the page skeletons that build pages/screens by composing multiple, service-specific UI components.
Cross cutting concerns