Model Based System Engineering Approach to Managing Requirements in a Multi- Agency/Multi-Stakeholder Environment of Science and Technology/Research and Development Projects

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Nov 30, 2013 (3 years and 7 months ago)

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Model Based System Engineering Approach

to
Managing Requirements in a Multi
-
Agency/Multi
-
Stakeholder Environment of
Science and Technology/Research and
Development Projects


Magda Batista
-
Carver

Federal Aviation Administration


Electrical Computer Engineer

The George Washington University EMSE PhD Candidate


Dr. Thomas
Mazzuchi
, D. Sc.

Dr.
Shahram

Sarkani
, Ph.D., P.E.


May 16, 2012

Overview


Motivation


Challenges with Traditional Systems
Engineering


Motivation


Improving Management of Complex System Development


Why MBSE


Conceptual Model


Application


Analysis
Framework


Notional Application Model


Conclusion


Challenges with Traditional SE


Traditional System Engineering is paper
based


Acceptable for smaller/single
user systems


Large complex system development proves to be
immensely challenging


Difficult to understand, track, manage
and articulate
effects
of requirements
changes


Document
management approach does not support
effective communication among distributed teams


Limited validation and verification resulting in late
identification of issues


Poses
development risk to projects operating in S&T/R&D
environment


Motivation


As
the US debt increases, there is less
funding
available for
Science &Technology (S&T)/Research & Development
(R&D) Government Agency
projects


Government Agencies
repeatedly
criticized for
long
development and acquisition cycles


Government agencies are pooling their funds for projects of
similar interests resulting in System Engineers needing to
address multi
-
agency requirements and complex project
missions during product development


These complex projects need to be seamlessly integrated
into a complex system of systems


Complex S&T systems development requires more robust,
efficient and effective ways to manage requirements than
traditional SE









Improving Management of Complex
System Development


Model Base System Engineering (MSBE) approach is more
suitable for development of complex systems in the multi
-
stakeholder environment.


What
is
MBSE?


Layered
approach to system development and requirements
management


Stresses common language and term definition at the beginning


Uses modeling throughout the system’s lifecycle to support


Systems engineering and systems development


Design and analysis


Verification and validation


Supports integration of diverse models


Why Model Based System Engineering?


Modeling performed at all layers of development


Improved approach to requirements validation and
verification


Improved understanding of the overall system being
developed


Early identification of problems


Cost avoidance potential


Improved overall productivity

Conceptual Model

Application


Potential Case
S
tudy


Joint Strike Fighter (J
-
35) is a multi
-
agency/multi
-
national program under development since 2001


Since achieving design maturity in 2007, JSF has
undergone over 20,000 changes


Current
total acquisition cost is $283 B, a cost growth of
34.7% of the baseline total acquisition
cost


Currently estimating a 5 year schedule slip for system
development

Analysis Framework

Multi
-
Agency/Multi
-
Stakeholder R&D/S&T Project


Joint Strike Fighter (J
-
35)


STOVL


CV


CTOL

Notional Application

Conclusions


Organizations are
moving towards more complex system
development in collaboration with other
organization who
have similar
needs/interests


Acquisition timelines are lengthy, costly and often times
result in programs not meeting all of the intended scope


MBSE can potentially address some of the challenges not
met by traditional SE in a Multi
-
Stakeholder environment


Define terms from all stakeholders early in development process


Develop systems in increasing layers of complexity


Improve communications between developers and stakeholders


Allow for understanding of requirements changes to overall
system


Thank You!

Contact Information


Magda Batista
-
Carver

(202) 385
-
6119

magda.batista
-
carver@faa.gov


Thomas A.
Mazzuchi
, D.Sc.

(202) 994
-
7541

mazzu@gwu.edu


Shahram

Sarkani
, Ph.D., P.E

(888) 694
-
9627

sarkani@gwu.edu


References


Azizian
, N.,
Mazzuchi
, T.,
Sarkani
, S. & Rico, D. (2011). A Framework for Evaluating
Technology Readiness, System Quality, and Program Performance of U.S.
DoD

Acquisitions.
Systems Engineering
(14)
4.


Director, Operational Test and Evaluation FY 2011 Annual Report.


Estefan, J. (2007). Survey of Model
-
Based Systems Engineering (MBSE)
Methodologies.
INCOSE MBSE Focus Group.


Government Accountability Office (2010). Joint Strike Fighter Additional Costs and
Delays Risk Not Meeting
Warfighter

Requirements on Time.
GAO
-
10
-
382.


Government Accountability Office (2010). Joint Strike Fighter Significant Challenges
Remain as
DoD

Restructures Program.
GAO
-
10
-
520T.


Government Accountability Office (
2011).
Joint Strike Fighter
Restructuring Places
Program on Firmer Footing, but Progress is Still Lacking.
GAO
-
11
-
677T.


Goyette
, E., Hein, J., Lamar, B. & Ring, S. (2005). Integrated Architecture
-
Based
Portfolio Investment Strategies.
10
th

International Command and Control Research
and Technology Symposium, The Future of C2.

References
continued


Harvey, D. & Logan, P. (2010). Architecting the Problem Space: An Architecture
Framework
-
Based Method for Definition of User Requirements
. 4
Th

Asian
-
Pacific
Conference on Systems Engineering (APCOSE 2010), Keelung,
Tawain
.


INCOSE (2011)
Systems Engineering Handbook (Version 3.2.1).


OMG (2012). MBSE Wiki. Retrieved on April 23, 2012 at
http://www.omgwiki.org/MBSE/doku.php


Ramos, A.L., Ferreira, J.V., and
Barcelo
, J. (2012). Model
-
Based Systems
Engineering: An Emerging Approach for Modern Systems.
Systems, Man and
Cybernetics, IEEE Transactions on
42
(1) 101


111.


Rouse, W. B and Sage, A.P (2009). Handbook of Systems Engineering and
Management (2
nd

edition). John Wiley and Sons, Inc., Hoboken, New Jersey.


Vitech

(2011). A Primer for Model
-
Based System Engineering (2
nd

edition).
Vitech

Corporation
.