Metamodeling

Understand the difference between Relationship Types (type definitions) and Relationships (concrete connections between nodes).

How to create and configure Node Types — the building blocks of your metamodel schema.

Understand the difference between Node Types (type definitions in the metamodel) and Nodes (instances in the model).

How to define which Node Types can be connected by which Relationship Types.

Learn how Allowed Connections define which Node Types can be linked by which Relationship Types — the constraint system that keeps your model valid.

Control how nodes of a type look on the canvas — fill color, shape, borders, and which labels show.

Give every node or relationship of a type a readable, auto-numbered ID like REQ-42.

Control how connections of a type look — color, line style, arrowheads, direction, and routing.

The nine data types a property can hold, and when to use each — plus default values, required fields, and computed formulas.

How to use the Type Hierarchy flags on a relationship type — inheritance (inherit properties, allowed connections, views), containment (nesting on the canvas and in the tree), and aggregation.