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README.md

New Framework: Architecture

By Mark Qian 8/2018 (markqian@hotmail.com)

A. Introduction:
About a years ago, I, as the UI lead/architect, started an UI of SDN (Software-defined networking) project from scrach. The requirements including the following:

  • highly componentized: there is a protential to eventually deliver a platform where third-party coders can share the components used by company's primary UI
  • rapidly changable: in many cases, PM want to sit with UI to apply design (modification or creation on the fly while discussing.
  • model driven: server side will generate/deliver (even runtime) a list of "models" and UI should be able to render them
  • other "regular" requirments: highly dynamically (heavily streaming), highly graphicall (a variety of charts and operatable diagrams) and so on
B. Result:
Currently, as a result, a framework has been established and several applications are built on the framework. The framework provides the following:
  • highly componentized: any application, as a container, built on the framework contains two types of highly decoupled "objects": UI component (boxes in light blue below) and services (circles in orange). Pub/Sub is used for communication:
  • As you can see in the diagram above, no object reference to others: for example, an UI component has no idea about whom its request (publish) is served by and a service also has no idea about where the request is coming and where the response from server is return to: "objects" in the container is hightly isolated!
  • rapidly changable: we only need about 5 minutes to put together a regular form or table and it takes only seconds to add/remove/modify a field since we only need to edit the UI schema and the rest will be taken care by the framework. You will see how in the "Schema Driven" section
  • model driven: the framework can render any "regular" models out of model definition delivered by server. The rest of screens need some special "UI muscle". The percentage depends on application.
  • One major character of this framework is that any application built on it contains no application logic (work flow) until the runtime - the application logic is loaded from a json configuration file at runtime. That is, the logic is extracted out of codes as data. The details are available in the "Schema Driven: UI Handling Application Logic" section
  • Communication pattern is another key design point in this framework
    Pub/Sub plays many roles in this architecture: isolate views and services, link and field/view (in schem or in js code) to topics. See details at Schema Driven: Each field handle special interaction

C. Details on Design and Implementation:

  • 1. Problem:
  • 2. Solution:

(Under construction)

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