This chapter deals with a high-level project plan as an example for 3-level system landscape.

The following exemplary project plan is a high-level project plan for a system landscape with 3 levels including all systems from sandbox to production. It is highly recommended using the same update approach (that is, standard update, nZDM, or ZDO) across the system landscape.

Cycle 1 and cycle 2 can be combined into one test cycle that focuses on both, the technical validation of the ZDO procedure and the functional validation of the source release when running on a bridge subsystem.

ZDO is used for all systems including development and quality assurance or test systems. The last cycle before production must run on an up-to-date copy of production to ensure that all potential issues that can occur in production are found.