Chapter 5 Working with Information Liquidity Models
The following ILM model checks are made on data transformation actions (data split, data sort, data merge, data projection, data calculator, generic data action, data join, script execution, data query execution, data aggregation, data filter, data lookup):
| Check | Description and Correction |
|---|---|
| Data transformation action name and code uniqueness | Data transformation action names and codes must be unique in the namespace [model or package].
Manual correction: Modify the duplicate name/code Automatic correction: Appends a number to the duplicate name/code |
| Existence of source object | A data transformation action must have at least one data structure source object.
Manual correction: Add any missing source objects in the Data Structure Source Objects tab of the data transformation action. Automatic correction: None |
| Existence of data structure column | At least one data structure column must be defined in the data transformation action.
Manual correction: Add any missing data structure columns in the Data Structure Columns tab of the data transformation action. Automatic correction: None |
| Undefined script [script execution and data lookup only] | A script execution/data lookup must have a script defined.
Manual correction: Define any missing script in the Script tab of the script execution/data lookup Automatic correction: None |
| Existence of data connection [data query execution only] | A data query execution must be linked to a data connection to insert or update data in the database..
Manual correction: Select a data connection in the Data Connection list in the Script tab of the property sheet Automatic correction: None |
| Existence of source expression for data structure columns [data aggregation only] | A data aggregation must have at least one source expression defined to aggregate data
Manual correction: Add any missing source expressions in the Source expression box in the Data Structure Source Object tab of the data aggregation Automatic correction: None |
| Undefined criterion [data filter only] | A data filter must have a criterion defined to filter data
Manual correction: Add any missing criteria in the Criteria tab of the data filter Automatic correction: None |
| Existence of data structure join [data join only] | A data join must have a data structure defined
Manual correction: Add any missing data structure joins in the Join Columns tab of the data join Automatic correction: None |
| Missing occurrences in join sources [data join only] | A data structure join must have two sources defined.
Manual correction: Add any missing sources for a data structure join in the Join Columns tab of the data join Automatic correction: None |
| Match data structure column sources [data merge only] | The two data structure column sources of a data merge must be equivalent [same number of data structure columns and same data type ]
Manual correction: Add any missing data structure column in the data merge sources and/or modify the source data type in the data structure column property sheet Automatic correction: None |
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