types of MAP in dynamics AX

There are two types of Maps available in dynamics AX

1. X++ Maps: it can be used as a temp data store for the given scope of a process. This takes us less over head, and is much quicker than a TempTable. For Further reading

2. AOT Maps: A map can unify the access to similar columns and methods that are present in multiple tables. You associate a map field with a field in one or more tables. This enables you to use the same field name to access fields with different names in different tables. Methods on maps enable you to create or modify methods that act on the table fields that the map references.

Type Hierarchy browser

The Type Hierarchy browser enables you to view information about the super type and sub type of application objects. For example, you can see all the classes that extend a particular class, or see which data types a particular extended data type inherits from. It also enables you to view the methods, fields, and indexes that are used by tables. Information is available for application and system classes, tables, and data types.
To view information for a single application object

·        Right-click the object, and then select Add-Ins > Type Hierarchy browser

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