Prototyping could be an initial step to rapid prototyping.

  Search the internet for credible topics that discuss wireframe and mock-ups. In your discussion, Discuss how paper prototyping could be an initial step to rapid prototyping. Compare and contrast prototyping, wireframe, and mock-up discussion board 2:Find an example of an app that uses multiple fragments and combines them into one single activity. In your post, Identify the app by providing the name and a URL to the app. Discuss how multiple fragments are combined in one single activity for building a multipane user interface in the app. Discuss reusing fragments in multiple activities.