Pain-Free Use Case Modeling
Write concise use case specifications that expose off-nominal behavior.
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Online editor
Use case diagrams
Structured scenarios
Training
Try the online use case editor.
Structured Use Cases provides a no-cost editor for creating use case diagrams and concise structured use case specifications. Use it to explore basic, alternate, and exception scenarios before missing requirements become expensive.
Evaluation use only. The Structured Use Cases editor is provided as a no-cost evaluation and training aid. It is provided as-is, without warranties of any kind. Parallel Agile assumes no responsibility or liability for use of the software or for decisions, models, specifications, code, tests, or other work products created with it.
Learn the method behind the tool.
Parallel Agile training teaches practical ways to write better specifications, discover off-nominal behavior, reduce modeling pain, and use AI-assisted workflows without giving up engineering rigor.
Pain-Free MBSE Training
Improve the value-to-pain ratio of SysML modeling practices.
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Use AI to accelerate SysML v2 modeling with repeatable workflows.
View courseAIM for Software
Develop better specs for Codex, Claude Code, and spec-based coding.
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