Topics:

• Overview of IMS Concepts
• Mapping IMS Elements to FOCUS
• Mapping IMS and FOCUS Relationships

This chapter discusses IMS and FOCUS concepts and explains how IMS elements correspond to their FOCUS counterparts. The concepts in this chapter apply to Master Files, FOCPSBs, and joins.

• Overview of IMS Concepts discusses IMS terms and concepts that are necessary for understanding how to describe IMS structures to FOCUS.
• Mapping IMS Elements to FOCUS discusses mapping concepts for individual elements.
• Mapping IMS and FOCUS Relationships discusses mapping concepts and procedures that explain how relationships are implemented.