Autodesk Navisworks is a 3D design review package primarily used in construction industries to complement 3D design packages (such as Autodesk Revit, AutoCAD, and MicroStation). Navisworks allows users to open and combine 3D models; navigate around them in real-time; and review the model using a set of tools including comments, redlining, viewpoint, and measurements.
Microsoft SharePoint is a web-based collaborative platform which is primarily used for storing and sharing documents, and communicating information across organization.