The metadata service allows external consumers to obtain information about the AOT objects within Microsoft Dynamics AX, such as tables, queries, forms, and so on. When we take a look at the operations available in the service, we can see the following two types of operations:
Operations that return a list of object names, such as the
GetQueryNamesoperation, which returns a list of query names available in the systemOperations that return metadata of one particular object to the consumer, such as the
GetTableMetaDataByNameoperation, which takes an array of table names and returns all of the metadata information available for these tables
Note
You can find detailed class diagrams on MSDN describing the metadata classes at http://msdn.microsoft.com/en-us/library/gg845212.