I will be involved in an upgradation project (From R/3 4.5B to ECC 6.0) and its my first upgrade project.
So i want to know what are all the information from BASIS perspective whcih i need to gather from the R/3 4.5 system before starting the upgrade.
Few things are like Work load, Number of users, Parameters in RZ10, Database size, Roles created..
I just want to know how to find the interfaces to that system and any other important information which will be useful..
Please help me regarding this.