Model topology can be imported in eXpress from a Microsoft Excel spreadsheet using the eXpress Spreadsheet Topology Import. This plug-in module is actually another data source that can be set up within Data Source Administration. The topology import allows the following entity types to be imported or updated:
Together with the eXpresseXpress Model topology export, this provides the Analyst with a flexible set of capabilities that facilitate the modeling process in a variety of situations, including:
the ability to get a quick-start in developing an eXpress model by importing data available in external engineering databases
the ability to create a "closed-loop" topology update—with eXpress topology data being exported, modified externally, and then re-imported to update the original model
the ability to introduce topological changes from external sources (including other eXpress designs) without modifying a model's existing test, Attribute, state or Operating Mode definitions
the ability to speed up the modeling process via the application of the topology import as a power-modeling tool
the ability to quickly create non-topological models so that otherwise "un-modelable" portions of a design (e.g. "black boxes") can be imported into a system model
the ability to automatically create "stub model" topologies that represent specific sets of testability statistics
So that the Spreadsheet Topology Import can support this wide variety of uses, a large number of customizable options have been provided—many more options than the basic eXpress Analyst will want (or need) to master. To simplify the importing process, these options have been hidden away in a multi-tabbed options dialog. In fact, for most uses of this plug-in, the import options can be specified with just one or two mouse-clicks—the Analyst will not even need to look at the advanced options. Nevertheless, there will be times when the Analyst wishes to go beyond the pre-packaged Import Modes that can be selected on the Main Topology Import panel.
For more detail on working with the eXpress Spreadsheet Topology Import, choose from the following:
