Decision requirement diagrams depict modeling of a decision-making domain in accordance with Decision Model and Notation (DMN) notation.
You can use the established MID modeling tool to create a Decision Diagram.
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Definition
The decision requirement diagram uses the OMG "Decision Model and Notation" (DMN) standard and depicts a decision-making domain with its most important elements and requirement relationships.
The icon is of a diagram with a decision.
Use
The decision requirement diagram can be added to a whiteboard diagram as a node.
Dependencies between decisions and elements from other diagrams are shown in the whiteboard diagram.
Decision Requirement Diagram Elements
Nodes
The following model elements can be shown as nodes in decision requirement diagrams:
| Icon | DMN Element | Brief Description |
|---|---|---|
|
Decision |
A Decision element denotes the act of determining an output from a number of inputs, using decision logic which may reference one or more Business Knowledge Models. |
|
Business Knowledge |
A Business Knowledge element denotes a function encapsulating business knowledge, e.g., as business rules, a decision table, or an analytic model. |
|
Knowledge Source |
A Knowledge Source element denotes an authority for a Business Knowledge Model or Decision. |
|
Input Data |
An Input Data element denotes information used as an input by one or more Decisions |
|
Group |
A group provides a visual mechanism to group elements of a diagram informally. |
In addition to the elements that can be directly visualized in a decision requirement diagram, there is a range of other elements that can be displayed as elements linked with these directly visualized elements. These dependent elements can often be made visible using the respective configuration.
Edges
Edges depict requirement relationships in decision requirement diagrams.
| Icon | DMN Element | Brief Description |
|---|---|---|
|
Information Requirement |
An Information Requirement denotes Input Data or Decision output being used as input to a Decision. |
|
Authority Requirement |
An Authority Requirement denotes the dependency of a decision requirements graph (DRG) element on another DRG element that acts as a source of guidance or knowledge. |
|
Knowledge Requirement |
A Knowledge Requirement denotes the invocation of a Business Knowledge Model by the decision logic of a Decision. |
Decision Requirement Diagram Example
Further Information
