A map must be compiled into a map control string before the translator component of WebSphere Partner Gateway can perform translations related to the map. A map control string is a compiled representation of a map. A map itself is never directly used to translate a document.
Data Interchange Services client uses the map as input to a program that compiles the map to produce a control string. The source and target document definitions referenced by the map are also usually compiled into control strings during this process. The translator component of WebSphere Partner Gateway uses the control string in its translation processing. Before Data Interchange Services client can recognize a change related to a map, the map must be recompiled. You recompile a map in the following situations: