Using the Designer > Using More Designer Features > Creating a Data Model in Memory

The in-memory data source allows you to start from in-memory data in Java classes compliant with the data model requirements of JViews Diagrammer.

To create a data model in memory interactively, choose File>New from Wizard then select the in-memory option (default option).

You start from a basic data model containing four nodes and four links, see Figure 3.13.

Usually, data models contain either x and y data, or latitude and longitude data. Here the data model contains both.