Model Based Systems Engineering Enterprise Architecture Frameworks Mr Robert Paternoster Maritime Architecture Modelling SME [email protected] 0117 91 36094 Systems Engineering and Integration Group V1.1
Model Based Systems EngineeringEnterprise Architecture Frameworks
Mr Robert Paternoster
Maritime Architecture Modelling SME
0117 91 36094
Systems Engineering
and Integration Group
V1.1
Aim
• To understand the benefits of Enterprise
Architecture (EA) modelling
• To become familiar with the principle and
structure of MODAF
Definition of Enterprise
• An "enterprise" is any organisation or collection of organisations, that have a common set of business goals and/or a single bottom line.
TOGAF Definition
Definition of Architecture
• Architecture is about structure and inter-relationship
• Some uses of the term architecture:
– A Computer Architecture describes the
structure and organization of a
computer's hardware or system software
– Architecture is the art and science of
designing and constructing buildings
– A Web Services Architecture identifies
the functional components and defines
the relationships among those
components to effect the desired
properties of the overall architecture
Definition of Enterprise Architecture
• “The formal description of the
structure and function of the
components of an enterprise,
their interrelationships, and
the principles and guidelines
governing their design and
evolution over time” (Ref:
IEEE 1471).
Components of an Enterprise
• An enterprise is made up of many components including but not limited to:
– People
– Processes
– Physical Structures
– Engineering and Information Systems
– Financial Resources
• In order to achieve the common “Enterprise Goal” these components must coordinate their functions and effectively exchange information and resources
• For large enterprises, these relationships between components can be very complex.
Managing Complexity
• This complexity tends to lead to the creation of
stove-pipes where different areas of an enterprise
operate in isolation.
• This lack of “bigger picture approach” can result in:
– Reduced Efficiency
– Poor Investment Decisions
– Duplication of Effort
– Loss of agility
• One way of managing this complexity and preventing
the creation of stove-pipes is to model the enterprise
architecture
Modelling the Enterprise Architecture
• Enterprise Architecture (EA) models enable the capture and
presentation of information relating to the Enterprise, with the
aim of:
– Aiding the understanding of complex issues
– Gaining a consistent understanding of the EA and associated
assumptions thus avoiding expensive rectification projects
– Supporting Enterprise planning and change management activities
– Analysing the model to identify and articulate potential issues
– Supporting the elicitation of a coherent set of requirements
• Architecture models are developed at a level of detail that is
appropriate for a given objective.
A Common Framework
• Large corporations may well have separate
enterprise architecture projects
– But there is much in common about the systems in
each “enterprise”
– There is usually great potential for gain in the use of a
common architecture modelling standard or framework
• A common framework can provide a basis for the
development of an architecture repository:
– Allows the integration and re-use of models, designs,
and baseline data
What is MODAF?
• Ministry of Defence Architecture Framework
• An Enterprise Architecture Framework (or “standard”) designed specifically for the MoD Enterprise
– A set of rules and constraints on how to organise information about the enterprise
– Templates that provide a graphical and textual visualisation of the enterprise area being investigated
– Guidelines to govern architecture activity
• MODAF provides a language or “grammar” to produce consistent and coherent enterprise architectures across Defence
MODAF Views
• A MODAF view describes a specific aspect of an
enterprise architecture
• For example:
– Strategic View (StV) 1 – Enterprise Vision. Designed
for senior management to capture the strategic
direction of the enterprise
– System View (SV) 2a - System Port Specification.
Designed for engineers to specify the ports on a
system, and the associated protocols used.
• Within MODAF 1.2 there are 46 different MODAF
views
MODAF is NOT…
A lot of disconnected views
Why MODAF is NOT a lot of disconnected views?
Underlying Model Constructed in Accordance to MODAF Meta-Model
OV-1a: High-Level Operational Concept Graphic
•
Why MODAF is NOT a lot of disconnected views?
Underlying Model Constructed in Accordance to MODAF Meta-Model
OV-1a: High-Level Operational Concept Graphic
MODAF Viewpoints
Strategic
(StV 1-6)
Why?
‘Capabilities’
Operational
(OV 1-7)
What?
‘Logical’
System
(SV 1-12)
How?
‘Solution’
Acquisition
(AcV 1-2)
When?
‘Programmatic’
Technical
(TV 1-2)
‘Constraints’
All View
(AV 1-2)
‘Summary’
Service
Orientated
(SOV 1-5)‘Services Available’
Simplified MODAF 1.1 Meta-Model (M3)
Simplified MODAF 1.1 Meta-Model (M3)
StV2
OV2
TV1
AcV2
SV1
SV2aStV1
StV5
OV5
Views Example: Joint Fires
Strategic
Operational
StV2
JF
OV1
(Info Ex)
(Surveillance) (C&C) (Effect)
Locate ID Decide Destroy(Info Ex)
OV3OV3
OV1 OV2 OV3 OV5 SV1STV2 Acv2
System
Acquisition
AV1 TV1SOV2
Strategic
Operational
StV2
JF
OV1
(Info Ex)
(Surveillance) (C&C) (Effect)
(Info Ex)
OV3OV3
OV1 OV2 OV3 OV5 SV1STV2 Acv2
System
Acquisition
AV1 TV1
OV2
Views Example: Joint Fires
SOV2
Strategic
Operational
StV2
JF
OV1
(Surveillance) (C&C) (Effect)
Locate ID Decide Destroy
SOV2SOV2
System
Acquisition
OV1 OV2 OV3 OV5 SV1STV2 Acv2AV1 TV1
Views Example: Joint Fires
SOV2
(Cap Config)
(Cap Config)(Cap Config) (Cap Config)
Strategic
Operational
System
Acquisition
StV2
JF
OV1
(Surveillance) (C&C) (Effect)
Locate ID Decide Destroy
SOV2SOV2
2008 2020
AcV
2
2008 2020
AcV2
2008 2020
AcV2
200
8
202
0
AcV
2
SV1
OV1 OV2 OV3 OV5 SV1STV2 SOV2 Acv2AV1 TV1
Views Example: Joint Fires
Summary
• MODAF is an Enterprise Architecture Framework
designed specifically for the MOD enterprise
• The MODAF Meta-Model (M3) enables enterprise
architecture modelling to be done consistently
across Defence
• The 46 MODAF views provide a common way of
presenting outputs from the MODAF compliant
models
• MODAF is an evolution of DoDAF and basis for NAF
revision 3
Questions?