Microsoft team has created some posters to help companies upgrade to Microsoft SharePoint Server 2010. The posters covers planning, different approach, validation and deployment required for upgrade.

You can download these poster from Microsoft’s website.

Upgrade planning

This model covers planning for an upgrade from Office SharePoint Server 2007 to SharePoint Server 2010. It includes information about the following:

Upgrade requirements: Hardware, operating system, and database
Upgrade process: specific steps to follow before, during, and after the upgrade

Download link: http://go.microsoft.com/fwlink/?LinkId=166301

Upgrade approaches

This model helps you understand the in-place, database migration, and hybrid approaches to upgrading from Office SharePoint Server 2007 to SharePoint Server 2010.

See the farm topologies before, during, and after upgrade
Compare the advantages of each type of upgrade

Download link: http://go.microsoft.com/fwlink/?LinkId=166302

Test your upgrade process

This model explains the methodology for testing the upgrade process before upgrading from Office SharePoint Server 2007 to SharePoint Server 2010.

Understand the goals for testing your upgrade process: customizations, hardware, timing, planning. See specific steps to follow for testing your upgrade process
Download link: http://go.microsoft.com/fwlink/?LinkId=166303

Services upgrade

This model covers upgrading services from Office SharePoint Server 2007 to SharePoint Server 2010.

Considerations for specific services: Personalization, Search, InfoPath Forms, Excel, Business Data Catalog, Single Sign-on
In-place upgrade with services; Single Shared Services Provider (SSP), multiple SSPs
Database attach upgrade with services
Download link: http://go.microsoft.com/fwlink/?LinkId=166304

*This post is based on SharePoint 2010 technical preview. Things might change with the release of final product.