Siebel Database Upgrade Guide for DB2 for z/OS > How to Perform a Siebel Database Upgrade > Roadmap for Performing a Siebel Database Upgrade >

Roadmap for Upgrading from Siebel CRM Releases 7.x and 8.0.x Without a Development Environment

If you are upgrading from Siebel CRM Release 7.x or 8.0.x, and you do not have a development environment, complete the processes in this roadmap in the order shown.

Upgrading without a development environment means the following are true:

• You are running an uncustomized, preconfigured version of Siebel Business Applications.
• You have not used Siebel Tools to create or modify any objects or logical schema definitions in the Siebel Repository.
• You have not modified the physical schema in the Siebel database.

If your upgrade meets these criteria, complete the following processes in the order shown:

1. Process of Planning a Siebel Database Upgrade.
2. Preparing for a Siebel Upgrade Without a Development Environment.
3. Perform a production test upgrade. See Process of Upgrading a Production Test Environment.
4. Process of Tuning the Upgrade Performance.
5. Upgrade your production environment. See Process of Upgrading a Siebel Production Environment.