Description:
This is a 3D viewer used as a tool for collaborative visualization and discussion.

Target users:
1. Shop floor Engineers
2. CAD engineers
3. Design Reviewers / Managers
4. Vendors

User's Primary Tasks
1.View Parts
2 To write comments on parts & Drawings
3. Chat
4. To manipulate the view

A Heuristic Review was done to find potential Usability Problems. Some of the review comments are below:

	Usability observations: 1. grouping of icons 2. Relocating the file name 3. Making tab set brighters
	Usability observations:: (for chat window) 1. put the text entry at the bottom. 2. interchange the hide and send buttons 3. have the user name shown at the top
	Usability observation: 1. need to correlate red lining with its sub menu 2. text can be a separate icon. 3. Don't require to have two was of showing who are in session. It can be misleading.