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Model-based Conceptual Design Working Group (MBCD WG) Charter



The purpose of this working group is to advance the body of knowledge and practice of systems engineering (SE) through the development and application of model-based systems engineering (MBSE) methodologies to the Exploratory Research and Concept stages of systems engineering.


Develop best practice for model-based conceptual design


  • Enhance the practise of problem definition and identifying capability needs
  • Develop modelling practise in support of Exploratory Research and Concept Stage


Activities cover current and future model-based conceptual design theory, practice and education. The working group's focus is on the Exploratory Research and Concept Stages of the generic life-cycle defined by INCOSE1. However, the working group will also consider how model-based conceptual design influences and is influenced by other life-cycle stages.

Model-based Conceptual Design

Model-based Conceptual Design (MBCD) is the application of MBSE to the Exploratory Research and Concept Stages of the generic life?cycle defined by INCOSE and more specifically to the following activities:

i. Identify stakeholders' needs

ii. Explore ideas and technologies

iii. Refine stakeholders' needs

iv. Explore feasible concepts

v. Propose viable solutions

The main MBCD outputs, listed below, summarise the generic products from the first two technical processes defined by INCOSE1. These technical processes are also depicted in Figure 1.

i. Stakeholder needs

ii. Concept documents, including the concept of operations and support.

iii. Stakeholder requirements specification

iv. Measures of effectiveness

v. System Functions and System Functional Interfaces

vi. Key performance parameters

vii. One or more System Conceptual Designs

viii. System analysis including trade studies to identify preferred concepts

ix. System requirements specification incorporating measures of performance

x. Validation and verification Criteria


Figure 1: INCOSE1 Systems Engineering � Initial Technical Process Steps

Following a recommendation by INCOSE's Community Advisory Board2, the MBCD WG will, into the future, explore the application of the MBCD advances identified in the Exploratory Research and Concept Stages to the Validation Technical Process of the generic life?cycle defined by INCOSE1.


Member Skills and Expertise

Members should have a sound understanding of systems engineering, and expertise in model?based systems engineering, and a willingness to learn and advance the MBCD body of knowledge and practice. Researchers, practitioners and educators from the following domains, to the competency level of at least practitioner, act as examples of the expertise and skills required:

Systems Engineering Technical Skills

i. Stakeholder needs and requirements elicitation and definition

ii. Requirements analysis

iii. Requirements verification and validation

iv. Model-based systems engineering

Systems Engineering Project Skills

i. Project planning

ii. Project assessment

iii. Project control


i. Legal and policy

ii. Business analysis

iii. Soft systems analysis

iv. Systems thinking

v. Holistic lifecycle consideration

Membership, roles and responsibilities

The working group is structured with a steering group and activity teams.

The steering group consists of:

i. Chair � Provide direction to, and be responsible for, the leadership of the MBCD WG

ii. Co-chairs � Support the chair leading the MBCD WG and serve as chair in absence of the chair

iii. Members � Support the activities of the MBCD WG steering group

Individual teams will be responsible for tackling specific challenges and issues. The teams consist of:

i. Lead - Provide leadership of team tackling specific challenges and issues

ii. Members - Support the team

Related working groups

It is desirable that the following INCOSE working groups should be engaged:

i. Requirements working group

ii. Systems of systems working group

iii. MBSE Initiative � challenge teams and activity teams

iv. Tools integration and interoperability working group

Working Practice


The following are maintained on an ongoing basis by the steering group:

i. Working Group Charter

ii. Working Group strategy

iii. Working Group membership

iv. MBCD WG promotional material, including website and discussion forum

v. MBCD WG progress summary

The following are to be delivered by the teams:

i. Annual participation in the MBSE symposium, focusing on model-based conceptual design

ii. Description of the challenges and issues the MBCD WG could address, along with proposed selections and approaches

iii. MBCD WG activities roadmap

iv. Establishment and maintenance of an MBCD discussion forum

v. MBCD handbook (future)

vi. Half-yearly progress reports


The steering group will meet at least quarterly.

The individual teams will meet regularly and report to the steering group half-yearly.

Communicate via electronic media, including website, discussion forums, email and telecom.

Measures of success

Measures of success include:

i. Membership of activity teams

ii. Deliverables from activity teams

iii. Contributions to discussion forum

iv. New and updated MBCD practice products

v. Conference, symposiums and journal contributions

vi. MBCD symposiums organised


Resources required

The MBCD WG will submit resources requirements as required. Resources required may include meeting facilities, teleconferencing, and publication costs.


This Charter will remain in effect until rescinded by the duly authorised INCOSE representative.

Working Group Contacts

If you would like more information or are interested in participating in this working group, please contact Quoc Do.


1: Systems Engineering Handbook Working Group, INCOSE, Systems Engineering Handbook, INCOSE-TP-2003-002-03.2, January 2010

2: INCOSE CAB Meeting, International Workshop 2013

Last Updated on Friday, 16 September 2016 19:40