Locking data options

Data

The Data tab defines the data sets the application uses for analysis, simulation and testing, scoring, or other operational use. These data sources are defined relative to your server installation; hence all paths to data files, ODBC sources, and so on are all relative to the server.

As an administrator, you may want to set up some or all data before business users start using their applications. Administrators can:

• Select Lock Datasource when creating a new data source to lock it after it's created.
• Lock and unlock individual data sources by clicking the padlock icon next to a data source in the table, or in the Data Source Editor dialog.
• Set and lock the data model used in the application by selecting a data model in the Project Data Model drop-down and clicking the padlock icon.

  Note that business users can copy a locked data source from Project Data Sets to their My Data Sets section, but it remains locked in both sets. See the topic Managing data sources for more information.

• If the project data model is a Data View, use the Allow use of ODM rules based on hierarchical data drop-down to control the usage of IBM Operational Decision Management (ODM) rules that have a hierarchical data model. Use of such rules can result in poor performance. The following options are available in the drop-down:
  • Don’t allow is recommended for best performance. Disallows ODM rules with a complex data structure from being used anywhere in the project. An error is displayed if a user selects a complex rule at any point in the application.
  • On Modeling tab only allows the complex rules to be referenced when building models on the Modeling tab. This allows added flexibility, with a performance hit. This option only applies to IBM® SPSS® Modeler Advantage.