MOSS 2007
WSS 3.0
Windows Server
Instructor Notes
First, point out that WSS leverages features from the underlying OS, from SQL Server and from ASP.NET 2.0. Also discuss certain features that were added to ASP.NET 2.0 (Master Pages, Web Parts, Navigation) that benefit WSS "V3".

Next, describe the core purpose of WSS is to act as a scalable site provisioning engine. WSS provides the services in the purple boxes so developers do not have to create that code themselves when creating site-oriented and workspace-oriented applications.

Finally, point out that WSS provides a development platform. The Office Server team has used this platform to build Office Server components and companies and developers can use WSS to build their own custom solutions.