Goals

• The app store will provide an application store for CDAP users to quickly and efficiently add capabilities into the platform.   
• The app store will also expand capabilities within the community by allowing users to publish capabilities for other CDAP users to experience.  

• As a CDAP User I want a plus button on the navbar so that I can an add new capabilities from anywhere in the platform
• As a CDAP User I want to be able to add new Datasets from the application store with pre configured fields so that I can easily write applications with schemas already defined for popular technologies, like omniture.
• As a CDAP User I want to be able to add new artifacts from the app store into the system to speed up development and improve the overall developer experience.
• As a Hydrator User I want to be able to add plugins from the app store to expand the capabilities of my pipeline.  
• As a Hydrator User from within the Hydrator Studio I want to be able to add new pipelines or applications from within Hydrator, and upon adding, remain in the Hydrator context.
• As a CDAP user I want to be able to add examples from the app store.  
• As a CDAP user from within the app store I want to be able to know what I've added into the platform and have those special cased when browsing the app store.  

...

Requirements

• The app store should be accessible from anywhere within CDAP.
• The app store should support adding:
  • Datasets
  • Artifacts
  • Applications (including custom applications/examples)
  • Pipelines
  • Plugins
• The app store should provide context when browsing to know if I've already added an entity.  
• The app store should special case if a newer version of an entity I added is available.  
• The app store should instantiate the new entity wizard where applicable.  
• The app store should have rules for contribution and allow user submissions.
• The app store should be browsable independently of the product, from the website.  
• The app store on the website should link to localhost and the cdap port to indicate "open in cdap" to add entities.  
• The app store should only be supported by default in the SDKboth Distributed and Standalone, with the option to be disabled.