Category: SysML

Precision and the False Choice

By David Long, Vitech President Just like simplicity, not all precision is helpful. Heresy? Not for engineers. Engineers are taught to use the appropriate degree of precision for the circumstance at hand. Unfortunately, as systems engineers, we too often forget those lessons. The quest for precision can lead us astray, …

Time to Drop MBSE?

Model-based systems engineering (MBSE) … model-driven development (MDD) … model-based engineering (MBE) … model-centric engineering (MCE) … digital thread … digital tapestry. In Romeo and Juliet, Shakespeare famously wrote “a rose by any other name would smell as sweet.” In the case of systems engineering and the drive to models, …

Variant Management in CORE and GENESYS (Part I)

When teaching classes on model-based systems engineering, I am frequently asked about methods to manage different system configurations in the model. Most engineers are very comfortable thinking in part structures, and while this is a critical aspect of systems engineering, it’s not the whole story. To answer the question and …

9 Imaginary Roadblocks to MBSE

For over ten years, the systems engineering community has been focused on the transformation from document-centric to model-based techniques. In terms of the Roger’s innovation adoption lifecycle, we are beyond the early adopters, in the early majority, and moving towards the tipping point where model-based systems engineering becomes the expected …