Model Based Systems Engineering Enterprise Architecture Frameworks - - PowerPoint PPT Presentation

Model Based Systems Engineering

Enterprise Architecture Frameworks

Mr Robert Paternoster Maritime Architecture Modelling SME DESSESEIG-maritime4@mod.uk 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

• perate 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

• f 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 SV2a StV1 StV5

OV5

Views Example: Joint Fires

Strategic Operational

StV2

JF

OV1

(Info Ex)

(Surveillance) (C&C) (Effect)

Locate ID Decide Destroy

(Info Ex) OV3 OV3

OV1 OV2 OV3 OV5 SV1 STV2 Acv2 System Acquisition AV1 TV1 SOV2

Strategic Operational

StV2

JF

OV1

(Info Ex)

(Surveillance) (C&C) (Effect)

(Info Ex) OV3 OV3

OV1 OV2 OV3 OV5 SV1 STV2 Acv2 System Acquisition AV1 TV1

OV2

Views Example: Joint Fires

SOV2

Strategic Operational

StV2

JF

OV1

(Surveillance) (C&C) (Effect)

Locate ID Decide Destroy

SOV2 SOV2

System Acquisition OV1 OV2 OV3 OV5 SV1 STV2 Acv2 AV1 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

SOV2 SOV2

2008 2020

AcV 2

2008 2020

AcV2

2008 2020

AcV2

200 8 202

AcV 2

SV1

OV1 OV2 OV3 OV5 SV1 STV2 SOV2 Acv2 AV1 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?