{"id":197143,"date":"2025-09-23T14:40:00","date_gmt":"2025-09-23T14:40:00","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/knowledge\/?post_type=topic&p=197143"},"modified":"2025-09-24T10:57:06","modified_gmt":"2025-09-24T10:57:06","slug":"elevate-your-software-modeling-with-scade-design-rules","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/elevate-your-software-modeling-with-scade-design-rules\/","title":{"rendered":"Elevate your software modeling with SCADE Design Rules"},"content":{"rendered":"

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Introduction<\/h3>\n

Producing quality software is hard; doing it as a team is harder. Engineers must be able to review, understand and maintain software produced by other team members. One useful practice to ease collaboration is linting: using a dedicated tool to flag unwanted patterns, enforce consistent style, and keep complexity under control across a software project.<\/p>\n

In the world of safety-critical software, adopting a modeling standard is important. It is even mandatory for systems with high criticality levels, e.g. EN 50716 SIL 3 & 4 or DO-178C\/DO-331 levels A & B. In this context, automatically verifying compliance with said standard improves both efficiency and model quality.<\/p>\n

In this article, we will take a look at Ansys SCADE Design Rules<\/a>, an open-source database of metrics and rules to enforce consistent modeling practices for a team working with SCADE Suite.<\/p>\n

We will first look at how SCADE enables consistent modeling through the Rules & Metrics feature. We will then explore the catalog of rules, showcasing its use with an example.<\/p>\n

Metrics & Rules Checker<\/h3>\n

In the world of textual programming languages, there are many linting tools. At their heart, they are all rule-based, static code analyzers. They detect undesirable patterns in the code and raise warnings or errors based on configurable rules. This can be used to discourage the use of some coding patterns, to enforce naming conventions or project structure, and to encourage a consistent style across the codebase.<\/p>\n

There are many benefits to linting. It promotes readability, easing maintenance and evolutions; it improves collaboration and onboarding of new team members; it facilitates compliance with safety regulations.<\/p>\n

In the model-based software engineering world, SCADE comes with its own integrated linting feature<\/strong>, called the Metrics & Rules checker.<\/p>\n

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\n A sample set of rules on a SCADE Suite model<\/em><\/em>\n<\/p>\n

As its name suggests, it allows users to define two kinds of items:<\/p>\n