The below diagram represents the Collection Editor components.
Collection Editor
Editor Modules
Fancytree
The main purpose of using a fancy tree is to organize your assets in a multi-level hierarchy
Sunbird Players
The sunbird players are used to preview linked assets such as PDF, Video, EPUB, etc.
Common Form (SB-Form)
Use Common Forms to define the dynamic layout of a page that contains fields and sections. What makes this dynamic is that you can show/hide the sections & fields based on certain criteria, which is not possible with static page layouts.
Telemetry SDK
This is used for generating the telemetry from the editor as a utility dependency library.
Common Service Lib
This is used to send the telemetry to the server.