Step-by-Step Modeling of WaterDistiller Using EA and SysML (01)For many students learning SysML and MBSE, one of the more challenging issues is that in various tutorials, the diagrams provided are already drawn! How to start from scratch and create the model using a modeling tool is not covered in the tutorials....Aug 30, 2024·2 min read
Is "startup software" a use case?Question: Can "startup software" be considered a use case? When software starts, it typically needs to instantiate some objects, read some configuration files, etc. So, Are “start software” and “shut down software” use cases? Or are they extensions o...Jul 26, 2024·2 min read
Is "non-functional requirement" a vague term?"Non-functional requirement" is indeed a vague term, but this vagueness is in expression, stemming from historical convention. Continuing to use it causes less harm than terms like "functional module" or "user requirement". The vagueness lies in that...Jul 25, 2024·2 min read