AUDIENCE:   VME staff who are going to use the Data Dictionary System and need a foundational introduction into IDMSX The course is for delegates with little or no experience of the Data Dictionary, Databases and IDMSX The course is aimed at database designers, technical support staff, and programmers. It is a prerequisite for the IDMSX design and implementation courses. PREREQUISITES:   An understanding of the VME system. DURATION:   3 Days. Hands on. OBJECTIVES:   To enable students to use the Data Dictionary System and Data Dictionary Control Language to document, describe and enquire into processes and data. Acquire a grounding in IDMSX which will enable them to progress on to the IDMSX design and implementation courses. COURSE CONTENT:   Basic concepts and facilities of the Data Dictionary System( DDS) Elements and properties in both the business and computer halves of the dictionary Data Dictionary Control Language (DDCL) Changing the documentation described in the DDS Define and use more complex "recursive" DDS structures Accessing a DDS in which privacy and multiple versions systems have been defined Using complex DDCL to enquire into "linked" elements and to produce selective listings of documentation. IDMSX concepts and design IDMSX - interpreting data models, schema and subschema diagrams using Bachman diagrams and set structures IDMSX storage schema diagrams including set pointers. IDMSX shared and unshared service modes IDMSX recovery and locking strategies CH07/01