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When you drag a relationship onto a diagram from the browser, PD will automatically include the two entity symbols as well, even if the entities already appear on the diagram.These new entity symbols are called ‘graphical synonyms’, and can actually be very useful.

Viewer: Basic is a free component of IDA-STEP v4 providing core viewing functionality for all kinds of STEP files (*.stp).

This component alone makes IDA-STEP v4 a fully usable tool for viewing PDM, CAD and other data, available as STEP (internation standard ISO 10303) files.

SQL Developer Data Modeler is a for-cost option of SQL Developer that requires a separate license.

However, a free viewer (read-only) version is also available, as explained in Section 1.8.

Explore your data wherever it is—in the cloud or on-premises—including big data sources such as Hadoop and Spark.

With connections to hundreds of sources and constantly growing, Power BI Desktop lets you draw deep insights for a broad range of scenarios. But it doesn’t have to, with Power BI Desktop data modeling.

This chapter contains the following major sections: Section 1.1, "Installing and Getting Started with SQL Developer Data Modeler" Section 1.2, "Data Modeler User Interface" Section 1.3, "Working with SQL Developer Data Modeler" Section 1.4, "Approaches to Data Modeling" Section 1.5, "Data Modeler Options (User Preferences)" Section 1.6, "Saving, Opening, Exporting, and Importing Designs" Section 1.8, "Read-Only Data Modeler Viewer" Section 1.9, "Additional Resources for Data Modeling" To install and start SQL Developer Data Modeler, the process is similar to that for SQL Developer: you download a file and unzip it into a desired parent directory or folder, and then type a command or double-click a file name.

You should read any Data Modeler release notes or "readme" file before you perform the following steps.

The confusion still exists today, as evidenced by a recent thread on the Info Advisors PD group – “Even when dragging a relationship / reference from the browser into a diagram where the participating entities have already been included as symbols, PD creates new symbols for them, rather than connect the relationship’s symbol to the existing entities’ symbols.

One has to manually delete the extra ones; a nuisance...”.

IDA-STEP Viewer Basic provides a 3D View perspective, which is optimized for viewing such data.

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