Make use of minimal OS-specific features

Translate NT4 features to new host OS features

Improve on NT4 functionality, enhance management capabilities

Move all accounts from NT4 into Samba-3

Copy and improve

Authentication regime (database location and access)

Make least number of operational changes

Make progressive improvements

Desktop management methods

Take least amount of time to migrate

Minimize user impact

Better control of Desktops/Users

Live versus isolated conversion

Maximize functionality

Identify Needs for: Manageability, Scalability, Security, Availability

Integrate Samba-3, then migrate while users are active, then change of control (swap out)

Take advantage of lower maintenance opportunity