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第2章 Red Hat Decision Manager BPMN and DMN modelers

Red Hat Decision Manager provides the following extensions or applications that you can use to design Business Process Model and Notation (BPMN) process models and Decision Model and Notation (DMN) decision models using graphical modelers.

  • Business Central: Enables you to view and design BPMN models, DMN models, and test scenario files in a related embedded designer.

    To use Business Central, you can set up a development environment containing a Business Central to design business rules and processes, and a KIE Server to execute and test the created business rules and processes.

  • Red Hat Decision Manager VSCode extension: Enables you to view and design BPMN models, DMN models, and test scenario files in Visual Studio Code (VSCode). The VSCode extension requires VSCode 1.46.0 or later.

    To install the Red Hat Decision Manager VSCode extension, select the Extensions menu option in VSCode and search for and install the Red Hat Business Automation Bundle extension.

  • Standalone BPMN and DMN editors: Enable you to view and design BPMN and DMN models embedded in your web applications. To download the necessary files, you can either use the NPM artifacts from the NPM registry or download the JavaScript files directly for the DMN standalone editor library at https://<YOUR_PAGE>/dmn/index.js and for the BPMN standalone editor library at https://<YOUR_PAGE>/bpmn/index.js.

2.1. Installing the Red Hat Decision Manager VSCode extension bundle

Red Hat Decision Manager provides a Red Hat Business Automation Bundle VSCode extension that enables you to design Decision Model and Notation (DMN) decision models, Business Process Model and Notation (BPMN) 2.0 business processes, and test scenarios directly in VSCode. VSCode is the preferred integrated development environment (IDE) for developing new business applications. Red Hat Decision Manager also provides individual DMN Editor and BPMN Editor VSCode extensions for DMN or BPMN support only, if needed.

重要

The editors in the VSCode are partially compatible with the editors in the Business Central, and several Business Central features are not supported in the VSCode.

Prerequisites

  • The latest stable version of VSCode is installed.

Procedure

  1. In your VSCode IDE, select the Extensions menu option and search for Red Hat Business Automation Bundle for DMN, BPMN, and test scenario file support.

    For DMN or BPMN file support only, you can also search for the individual DMN Editor or BPMN Editor extensions.

  2. When the Red Hat Business Automation Bundle extension appears in VSCode, select it and click Install.
  3. For optimal VSCode editor behavior, after the extension installation is complete, reload or close and re-launch your instance of VSCode.

After you install the VSCode extension bundle, any .dmn, .bpmn, or .bpmn2 files that you open or create in VSCode are automatically displayed as graphical models. Additionally, any .scesim files that you open or create are automatically displayed as tabular test scenario models for testing the functionality of your business decisions.

If the DMN, BPMN, or test scenario modelers open only the XML source of a DMN, BPMN, or test scenario file and displays an error message, review the reported errors and the model file to ensure that all elements are correctly defined.

注記

For new DMN or BPMN models, you can also enter dmn.new or bpmn.new in a web browser to design your DMN or BPMN model in the online modeler. When you finish creating your model, you can click Download in the online modeler page to import your DMN or BPMN file into your Red Hat Decision Manager project in VSCode.

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