The Windows Optimized Desktop Scenarios is a Solution Accelerator for matching IT and business user requirements to 5 standard user scenarios.  This is a great resource for planning a cost-effective strategy around Microsoft technologies.  Freely available, you can download it from the Microsoft Download Center: http://download.microsoft.com/download/5/B/C/5BC966BC-47D8-41DF-95F2-FA9A2D816258/Windows_Optimized_Desktop_Scenarios.zip

The scenarios covered are: Office Worker, Mobile Worker, Task Worker, Contract/Offshore Worker, and workers who need to Access from Home. Each scenario puts a different emphasis on applications, security, and networking. In this way, these scenarios provide a flexible, adaptable desktop experience that meets the business requirements of each of these users.

In the download, you will find the following components:  The Windows Optimized Desktop Scenarios Assessment guide and the Windows Optimized Desktop Scenario Selection Tool.

The Windows Optimized Desktop Scenarios Assessment Guide:
The Windows Optimized Desktop Scenarios Assessment describes the five user scenarios defined for the Windows Optimized Desktop and further describes the Microsoft products and technologies that underpin each scenario solution. Additionally, this document guides you through an assessment of the user profiles in your organization to identify which scenario or scenarios best meets their needs.

Windows Optimized Desktop Scenario Selection Tool:
The Windows Optimized Desktop Scenario Selection Tool is designed to help you identify applicable scenarios, based on user and business requirements, for each user segment within your organization.

This is the latest Infrastructure Planning and Design (IPD) guide in a growing popular series which cover deployment, product integration and virtualization among other IT Pro subjects. Read more about the IPD series here: http://technet.microsoft.com/en-us/solutionaccelerators/dd408383.aspx

Additional Resources

Solution Accelerators on TechNet: http://technet.microsoft.com/en-us/solutionaccelerators/default.aspx
Infrastructure Planning and Design, Windows Optimized Desktop Scenarios, Executive Overview: http://technet.microsoft.com/en-us/library/dd334417.aspx
Windows Optimized Desktop: Overview on MS.COM: http://www.microsoft.com/windows/enterprise/optimized-desktop/default.aspx