Parameterize the data object when you have a different physical data object in the Model repository for each data source. You might parameterize the data object if you need to configure the same transformation for a flat file or for a database table. When you parameterize the data object, you enable the transformation to use data objects that have different properties or unique SQL queries.

When you create a Read transformation from a physical data object, information about the data object appears on the

Data Object

tab of the transformation properties. You can click the data object name to view the physical data object definition from the Model repository.

To parameterize the data object, create a resource type parameter or browse for a resource parameter. The parameter default value is the name of physical data object in the Model repository. When you create a default parameter value, you select a physical data object name from a list of data objects in the repository.

When you change the data object, the transformation ports change. You can view the ports on the

Ports

tab in the transformation properties.

The following image shows the

Data Object

tab when you specify the data object by a parameter:

The following table describes the parameter options on the

Data Object

tab:

Parameter Options	Description
Parameter	The name of a resource parameter that you configured as the data object. Read-only.
Description	The description of the parameter. Read-only.
New	Create a resource parameter. Browse for and select a data object in the Model repository for the parameter default value.
Browse	Browse for a resource parameter and select the parameter.
Default Value	The default value of the resource parameter that you configured for the data object. The default value is a physical data object name. Read-only.

Configure this functionality on the

Data Object

tab of the Read transformation for a flat file or relational source.