As systems keep growing in scale and complexity, the Systems and Software Engineering commu-nities have turned to Model-Based Systems and Software Engineering (MBSSE) to manage com-plexity, maintain consistency, and ensure traceability during system development. It is different from “engineering with models”, which has been a common practice in the engineering profession for decades. MBSSE is a Systems and Software Engineering approach centered on evolving mod-els, which serve as the “main / major source of knowledge” about the system or software entity un-der consideration.
In addition; due to the diversity of approaches and terminologies such as MDD, MBE, MBSD, etc. used either in the context of systems or software engineering; there is a lack of common under-standing of what MBSSE means.
Thus, there is a need for defining a reference model for MBSSE processes. Furthermore, support of tools and methods are required so that an organization can perform MBSSE or digital engineering under the systematic control of complexities.
The ISO/IEC/IEEE 24641 standard provides a MBSSE reference model comprising an abstract representation of the process areas of MBSSE and the relationships between these process areas. The process areas described are ‘Plan MBSSE’, ‘Build Models’, ‘Support Models’ and ‘Perform MBSSE’. These processes are related to the ISO/IEC/IEE 15288 System life cycle processes and describes the way to perform those processes based on models.
The MBSSE reference model concerns human-made systems composed of one or more of the fol-lowing system elements: hardware, software, data, humans, services to users, procedures, facilities, materials and naturally occurring entities. The processes can be applied at any level in the hierarchy of a system’s structure.
The MBSSE reference model can be used either independently or in conjunction with existing standards.
The scope of this International Standard is to provide the terms and definitions specific to MBSSE; define a MBSSE reference model for the overall structure and processes of MBSSE, describe how the components of the MBSSE reference model fit together; and define interrelationships between the components of the MBSSE reference model.
This presentation gives an overview of the progress status of this standard and presents the refer-ence model and summary of its content.