Requirements Modeling Language (RML®) Tools & Templates

What's the Difference Between RML®, UML, and SysML, and Why Does It Matter?

Modeling Languages Help Analysts, Designers, and Developers to Design and Build Complex Software Systems

Two widely used modeling languages are Unified Modeling Language (UML®) and Systems Modeling Language (SysML). Here at ArgonDigital we use our Requirements Modeling Language (RML®) to create and define software requirements visual models. RML® approaches software from the business analysis or product management perspective and focuses on specifying needs, rather than the solution designs like UML and SysML do. Instead of focusing intensely on complex system design models, RML® looks at a project’s goals and objectives. RML® then uses models to break down these objectives into requirements which are easily understood by both business stakeholders and developers. By focusing on objectives instead of system design, RML® forces teams to hone in on designing systems which maximize value to a project.

UML and SysML are very useful modeling languages for designing and developing systems of course. The RML® models actually can be used as a starting point for many of the models within UML and SysML.

See the adjacent chart for a full comparison of RML, UML and SysML.

RML vs UML vs SysML comparison chart

Explore RML® Models by Category (Objectives, People, Systems, and Data)

Download the Full Suite of RML® Visual Models and Templates

The .zip file contains the full suite of RML® visual models and templates – 22 different business analyst templates! – in various formats (Microsoft PowerPoint, Word, Visio, and Excel), all of which are outlined and explained in the book Visual Models for Software Requirements.