Document any other important operational business requirements, such as:
Priority list of applications to be migrated
Need to avoid year/quarter end processing?
How much downtime is ok?
Should the upgrade take place over the weekend
What staff is available: DBAs, system administrators?
What resources are available: Replication Servers, machines, tools, funding?
Application and data server dependencies
Is more than one application using the same ASE?
Can all applications on a server be migrated?
Are there any vendor issues? Are your third-party applications certified to run against ASE 12.5?