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2013
Mohammad Omar
[ TOGAF 9 FOUNDATION
SUMMERY NOTES ]
TOGAF 9 Foundation summery notes by Mohammed Omar
Tech-TOGAF
-------------------
We are using enterprise architecture to build strong partnership
between the organization technical and business group and deliver
more cost effective IT systems that enable business agility
Organizations that can manage change effectively are generally more
successful than those that cannot. Many organizations know that they
need to improve their IT-related development processes in order to
successfully manage change
Independent groups decide alone resulting in inconsistency, information
islands, isolated business processes, and inefficient technologies. This
mixture is a recipe for poor performance.
To get consistent behavior, the enterprise must create a framework of
guiding principles to define what is most important to the enterprise.
Guiding principles define the enterprise‘s strategy for certain business
and technical functions. They balance department and agency mandates
on the one hand and enterprise -wide interests on the other. They filter
decision making, eliminating solutions that don‘t meet the enterprise.‘s
objectives. This clarity of executive intent takes the guesswork out of
lower-level decisions. Clear, well-understood and sanctioned principles,
combined with an executive commitment to enforce them, help drive
change across disparate departments and programs.
SMART
________
• Specific, by defining what needs to be done
• Measurable, through clear metrics for success
• Actionable, by clearly segmenting the problem and providing the basis
for a solution
• Realistic, in that the problem can be solved within the bounds of
physical reality, time, and cost constraints
• Time-bound, in that there is a clear statement of when the opportunity
expires
TOGAF
Enterprise
_________
As any collection of organizations that has a common set of goals
An extended enterprise nowadays frequently includes partners,
suppliers, and customers. If the goal is to integrate an extended
enterprise, then the enterprise comprises the partners, suppliers, and
customers, as well as internal business units.
Architecture
__________
[ISO definition]
The fundamental organization of a system, embodied in its components,
their relationships to each other and the environment, and the
principles governing its design and evolution
[togaf]
In TOGAF, “architecture” has two meanings depending upon the
context:
1. A formal description of a system, or a detailed plan of the system at a
component level to guide its implementation
2. The structure of components, their inter-relationships, and the
principles and guidelines governing their design and evolution over
time
Enterprise Architecture
____________________
1. The organizing logic for business processes and IT infrastructure
reflecting the integration and standardization requirements of the
firm's operating model.
2. A conceptual blueprint that defines the structure and operation of an
organization. The intent of an enterprise architecture is to determine
how an organization can most effectively achieve its current and future
objectives
TOGAF Architecture domain
________________________
1-Business Architecture The business strategy, governance,
organization, and key business processes.
2-Data Architecture The structure of an organization's logical and
physical data assets and data management resources.
3-Application Architecture A blueprint for the individual application
systems to be deployed, their interactions, and their relationships to the
core business processes of the organization.
4-Technology Architecture The software and hardware capabilities that
are required to support the deployment of business, data, and
application services. This includes IT infrastructure, middleware,
networks, communications, processing, and standards.
Organization mission --------> need key enabler capabilities to fulfill
mission
Definition of “Capability”
__________________
An ability that an organization, person, or system possesses.
Capabilities are typically expressed in general and high-level terms and
typically require a combination of organization, people, processes, and
technology to achieve. For example, marketing, customer contact, or
outbound telemarketing.
Organization key enabler capabilities or components of transformation
_______________________________________________________
The people ,process,technology and physical infrastructure dimensions
are the key enablers capabilities that organization uses to fulfill its
mission
The dimension of change describe many features that work together to
enable the organizational capabilities
1-people - organization structure and human capital management
2-process business activities performed by organization
3-technology data and applications and technical infrastructure
4-physical infrastructure places and envirmental factor where the
enterprise workforce perform work
Each transformation program must work towards those capabilities
development process
Information asset life cycle
______________________
1-5 project delivery PMP
1-envision
2-define
3-design
4-develope
5-deploy
6-10 operation management
6-operate
7-measure
8-manage
9-optimize
Rebate 7,8,9
10 dispose
Framework vs. methodology
Methodology tills what to do but not how to do PMP
Framework tills how to do ITIL
Capability maturity models have gained wide scale acceptance over the
last decade. These models and their associated methods were originally
applied to IT solutions, particularly software solutions, but a number of
IT-related disciplines have developed capability maturity models to
support process improvement in areas such as:
1-People - the P-CMM (People Capability Maturity Model), and the
IDEAL Life Cycle Model for Improvement
2-Systems Engineering - the SE-CMM (Systems Engineering Capability
Maturity Model)
3-Software Acquisition - the SA-CMM (Software Acquisition Capability
Maturity Model)
4-CMMI (Capability Maturity Model Integration)
The models have been adopted by large organizations, including the US
Department of Commerce, the US DoD, the UK Government, and a
number of large services organizations, to assess competencies.
An enterprise architecture capability
_____________________________
(or architecture capability) in the context of TOGAF, is the ability for
an organization to effectively undertake the activities of an enterprise
architecture practice.
The increasing interest in applying these techniques to the IT
architecture and enterprise architecture fields has resulted in a series of
template tools which assess:
___________________________
The components of TOGAF 9 are as follows: 7 parts
• introduction
• Architecture Development Method (ADM)
• ADM Guidelines and Techniques
• The Architecture Content Framework
• The Enterprise Continuum and Tools
• TOGAF Reference Models
• The Architecture Capability Framework
Part I: Introduction This part provides a high-level introduction to the
key concepts of enterprise architecture and, in particular, to the
TOGAF approach. It contains the definitions of terms used throughout
TOGAF and release notes detailing the changes between this version
and the previous version of TOGAF
Part II: Architecture Development Method (ADM)
Part III: ADM Guidelines and Techniques
Part IV: Architecture Content Framework This part describes the
TOGAF content framework, including a structured metamodel for
architectural artifacts, the use of re-usable Architecture Building
Blocks (ABBs), and an overview of typical architecture deliverables.
Part V: Enterprise Continuum and Tools This part discusses
appropriate taxonomies and tools to categorize and store the outputs of
architecture activity within an enterprise.
Part VI: TOGAF Reference Models This part provides two
architectural reference models, namely the TOGAF Technical
Reference Model (TRM), and the Integrated Information
Infrastructure Reference Model (III-RM).
Part VII: Architecture Capability Framework This part discusses the
organization, processes, skills, roles, and responsibilities required to
establish and operate an architecture practice within an enterprise.
The following summarize TOGAF components and their relation to
each other
1-Central to TOGAF is the Architecture Development Method ADM
(the methods)
2- The architecture capability operates the method. Architecture
capability framework
3- The method is supported by a number of guidelines and techniques
-ADM Guidelines and Techniques
4-This produces content to be stored in the repository -Architecture
Content
Framework
5-which is classified according to the Enterprise Continuum
6- The repository is initially populated with the TOGAF Reference
Models
The ADM describes a process for deriving an organization-specific
enterprise architecture that addresses business requirements
It provides a number of architecture development phases
It provides a narrative of each architecture phase
It provides cross-phase summaries that cover requirements
management.
Enterprise continuum
explains how generic solutions can be leveraged and specialized in order
to support the requirements of an individual organization
The Enterprise Continuum is a view of the Architecture Repository that
provides methods for classifying architecture and solution artifacts as
they evolve from generic Foundation Architectures to Organization-
Specific Architectures
Architecture Building Blocks (ABBs) typically describing the required
capability in order to shape the Solution Building Blocks (SBBs) which
would represent the components to be used to implement the required
capability
The ADM provides a tested and repeatable process for developing
architectures. The ADM includes establishing an architecture
framework, developing architecture content, transitioning, and
governing the realization of architectures. All of these activities are
carried out within an iterative cycle of continuous architecture
definition and realization that allows organizations to transform their
enterprises in a controlled manner in response to business goals and
opportunities.
Pattern
A pattern is “an idea that has been useful in one practical context and
will probably be useful in others”.
Architecture
(Syllabus Reference: Unit 3, Learning Outcome 4)
Architecture has two meanings depending upon its contextual usage:
1. A formal description of a system, or a detailed plan of the system at
component level to guide its implementation
2. The structure of components, their inter-relationships, and the
principles and guidelines governing their design and evolution over time
1- Governance
Is the practice by which xyz is controlled within enterprise wide
activities
Enterprise continuum is a view for Architecture repository
1-Central to TOGAF is the Architecture Development Method ADM
2- The architecture capability operates the method. Architecture
capability framework
3- The method is supported by a number of guidelines and techniques
-ADM Guidelines and Techniques
4-This produces content to be stored in the repository -Architecture
Content
Framework
5-which is classified according to the Enterprise Continuum
6- The repository is initially populated with the TOGAF Reference
Models
Ch3
______
The Architecture Development Method (ADM) forms the core of
TOGAF and is a method for deriving organization-specific enterprise
architecture that support business requirements
The ADM provides a tested and repeatable process for developing
architectures. The ADM includes
1-establishing an architecture framework,
2- developing architecture content
3-, transitioning, and governing the realization of architectures.
All of these activities are carried out within an iterative cycle of
continuous architecture definition and realization that allows
organizations to transform their enterprises in a controlled manner in
response to business goals and opportunities.
The ADM is described as a number of phases within a process of change
illustrated by an ADM cycle graphic (see following). Phases within the
ADM are as follows: each phase is described as a narrative
Architecture Building Blocks (ABBs) typically describing the required
capability in order to shape the Solution Building Blocks (SBBs) which
would represent the components to be used to implement the required
capability
Deliverable + artifacts + building blocks archived in architecture
repository as stand red or ref model or snapshot of arch landscape in a
point of time
The Enterprise Continuum is a view of the Architecture Repository that
provides methods for classifying architecture and solution artifacts as
they evolve from generic Foundation Architectures to Organization-
Specific Architectures
explains how generic solutions can be leveraged and specialized in order
to support the requirements of an individual organization
Ch6
Architecture repository
___________________
The Architecture Metamodel
The Architecture Capability
The Architecture Landscape
The Reference LibraryThe Standards Information BaseThe Reference
Library
The governance log
describes the organizationally tailored application of an
architecture framework, including a method for architecture
development and a metamodel
for architecture content.
The Architecture Capability
defines the parameters, structures, and processes that support
governance of the Architecture Repository.
The Architecture Landscape shows an architectural view of the
building blocks that are in
use within the organization today (e.g., a list of the live applications).
The landscape is
likely to exist at multiple levels of granularity to suit different
architecture objectives.
The Standards Information Base captures the standards with which
new architectures
must comply, which may include industry standards, selected products
and services from
suppliers, or shared services already deployed within the organization.
The Open Group
provides an example of a Standards Information Base on its web site.8
The Reference Library provides guidelines, templates, patterns, and
other forms of
reference material that can be leveraged in order to accelerate the
creation of new
architectures for the enterprise.
Ch -8-
ADM Guidelines and Techniques
Interoperability is a Key Enabler for eGovernment
Guidelines till how to adapt adm
Technics tills how to apply adm effectively
TheTOGAF 9 Part III:
• Architecture Principles
• Stakeholder Management
• Architecture Patterns
• Business Scenarios
• Gap Analysis
• Migration Planning Techniques
• Interoperability Requirements
• Business Transformation Readiness Assessment
• Risk Management
• Capability-Based Planning
Architecture principles are a set of general rules and guidelines for the
architecture being developed.
Principles are an initial output of the Preliminary Phase and are used
throughout the ADM to provide a framework for guiding decision-
making within the enterprise.
They are intended to be enduring and seldom amended, and inform and
support the way in which an organization sets about fulfilling its
mission. Often they are one element of a structured set of ideas that
collectively define and guide the organization, from values through to
actions and results
Depending on the organization, principles may be established at any or
all of three levels:
1-Enterprise principles provide a basis for decision-making and dictate
how the organization fulfills its mission. Such principles are commonly
found in governmental and not-for-profit organizations,
2-IT principles provide guidance on the use and deployment of all IT
resources and assets across the enterprise. They are developed to make
the information environment as productive and cost-effective as
possible
3-Architecture principles are a subset of IT principles that relate to
architecture work. They reflect consensus across the enterprise, and
embody the spirit of the enterprise architecture. Architecture principles
can be further divided into:
— Principles that govern the architecture process, affecting the
development, maintenance, and use of the enterprise architecture
— Principles that govern the implementation of the architecture
Ch-10- views viewpoints and stakeholders
--------------------------------------------------------
system
A system is a collection of components organized to accomplish a
specific function or set of functions.
Stakeholders
Stakeholders are people who have key roles in, or concerns about, the
system; for example, users, developers, etc. Stakeholders can be
individuals, teams, organizations, etc.
Concerns
--------------
Concerns are key interests that are crucially important to stakeholders,
and determine the acceptability of the system.
Many types of concerns one of them is cross cutting concerns which is
named as quality attributes
The terms “concern” and “requirement” are not synonymous. A
concern is an area of interest. Concerns are the root of the process of
decomposition into requirements. Concerns are represented in the
architecture by these requirements. Requirements should be SMART
A viewpoint defines the perspective from which a view is taken.
It defines how to construct and use a view, the information needed, the
modeling techniques for expressing and analyzing it
The relationship between viewpoint and view is analogous to that of a
template and an instance of the completed template. In constructing an
enterprise architecture, an architect first selects the viewpoints
(templates), then constructs a set of corresponding views (instances)
The architect uses views and viewpoints in the ADM cycle during
Phases A through D for developing architectures for each domain
(Business, Data, Application, and Technology).
Selection of ref model and viewpoints and tools must occurs before
development of base line or target arch
ADM
Actual solution in phase E
Interoperability logically selected and implemented in phase F
Architecture realization. E,F,G
Applying Iteration to the ADM
_______________________
1-architecture context iteration pre-vision
2- architecture definition iteration B-F or B,C,D
3-architecture transition iteration E-F
4-architecture governance iteration G-H
Content framework
________________
1-architecture principles ,vision, and requirement
2.
2.1-preliminary phase
2.1.1 architecture principles
2.2 architecture vision
5 business architecture
------------------------
5.1 motivation
5.1.1 drivers
5.1.2 goals
5.1.3 objectives
5.1.4 measures
5.2 organization
5.2.1 organization
5.2.2 location
5.2.3 actor ,role
5.3 function
5.3.1 business services ,contracts,service qualities
5.3.2 process, events,controls ,products
5.3.3

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Togaf notes

  • 1. 2013 Mohammad Omar [ TOGAF 9 FOUNDATION SUMMERY NOTES ] TOGAF 9 Foundation summery notes by Mohammed Omar
  • 2. Tech-TOGAF ------------------- We are using enterprise architecture to build strong partnership between the organization technical and business group and deliver more cost effective IT systems that enable business agility Organizations that can manage change effectively are generally more successful than those that cannot. Many organizations know that they need to improve their IT-related development processes in order to successfully manage change Independent groups decide alone resulting in inconsistency, information islands, isolated business processes, and inefficient technologies. This mixture is a recipe for poor performance. To get consistent behavior, the enterprise must create a framework of guiding principles to define what is most important to the enterprise. Guiding principles define the enterprise‘s strategy for certain business and technical functions. They balance department and agency mandates on the one hand and enterprise -wide interests on the other. They filter decision making, eliminating solutions that don‘t meet the enterprise.‘s objectives. This clarity of executive intent takes the guesswork out of lower-level decisions. Clear, well-understood and sanctioned principles, combined with an executive commitment to enforce them, help drive change across disparate departments and programs. SMART ________ • Specific, by defining what needs to be done • Measurable, through clear metrics for success • Actionable, by clearly segmenting the problem and providing the basis for a solution • Realistic, in that the problem can be solved within the bounds of physical reality, time, and cost constraints
  • 3. • Time-bound, in that there is a clear statement of when the opportunity expires TOGAF Enterprise _________ As any collection of organizations that has a common set of goals An extended enterprise nowadays frequently includes partners, suppliers, and customers. If the goal is to integrate an extended enterprise, then the enterprise comprises the partners, suppliers, and customers, as well as internal business units. Architecture __________ [ISO definition] The fundamental organization of a system, embodied in its components, their relationships to each other and the environment, and the principles governing its design and evolution [togaf] In TOGAF, “architecture” has two meanings depending upon the context: 1. A formal description of a system, or a detailed plan of the system at a component level to guide its implementation 2. The structure of components, their inter-relationships, and the principles and guidelines governing their design and evolution over time Enterprise Architecture ____________________ 1. The organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of the firm's operating model. 2. A conceptual blueprint that defines the structure and operation of an organization. The intent of an enterprise architecture is to determine how an organization can most effectively achieve its current and future objectives
  • 4. TOGAF Architecture domain ________________________ 1-Business Architecture The business strategy, governance, organization, and key business processes. 2-Data Architecture The structure of an organization's logical and physical data assets and data management resources. 3-Application Architecture A blueprint for the individual application systems to be deployed, their interactions, and their relationships to the core business processes of the organization. 4-Technology Architecture The software and hardware capabilities that are required to support the deployment of business, data, and application services. This includes IT infrastructure, middleware, networks, communications, processing, and standards. Organization mission --------> need key enabler capabilities to fulfill mission Definition of “Capability” __________________ An ability that an organization, person, or system possesses. Capabilities are typically expressed in general and high-level terms and typically require a combination of organization, people, processes, and technology to achieve. For example, marketing, customer contact, or outbound telemarketing. Organization key enabler capabilities or components of transformation _______________________________________________________ The people ,process,technology and physical infrastructure dimensions are the key enablers capabilities that organization uses to fulfill its mission The dimension of change describe many features that work together to enable the organizational capabilities 1-people - organization structure and human capital management 2-process business activities performed by organization 3-technology data and applications and technical infrastructure
  • 5. 4-physical infrastructure places and envirmental factor where the enterprise workforce perform work Each transformation program must work towards those capabilities development process Information asset life cycle ______________________ 1-5 project delivery PMP 1-envision 2-define 3-design 4-develope 5-deploy 6-10 operation management 6-operate 7-measure 8-manage 9-optimize Rebate 7,8,9 10 dispose Framework vs. methodology Methodology tills what to do but not how to do PMP Framework tills how to do ITIL Capability maturity models have gained wide scale acceptance over the last decade. These models and their associated methods were originally applied to IT solutions, particularly software solutions, but a number of IT-related disciplines have developed capability maturity models to support process improvement in areas such as: 1-People - the P-CMM (People Capability Maturity Model), and the IDEAL Life Cycle Model for Improvement
  • 6. 2-Systems Engineering - the SE-CMM (Systems Engineering Capability Maturity Model) 3-Software Acquisition - the SA-CMM (Software Acquisition Capability Maturity Model) 4-CMMI (Capability Maturity Model Integration) The models have been adopted by large organizations, including the US Department of Commerce, the US DoD, the UK Government, and a number of large services organizations, to assess competencies. An enterprise architecture capability _____________________________ (or architecture capability) in the context of TOGAF, is the ability for an organization to effectively undertake the activities of an enterprise architecture practice. The increasing interest in applying these techniques to the IT architecture and enterprise architecture fields has resulted in a series of template tools which assess: ___________________________ The components of TOGAF 9 are as follows: 7 parts • introduction • Architecture Development Method (ADM) • ADM Guidelines and Techniques • The Architecture Content Framework • The Enterprise Continuum and Tools • TOGAF Reference Models • The Architecture Capability Framework Part I: Introduction This part provides a high-level introduction to the key concepts of enterprise architecture and, in particular, to the TOGAF approach. It contains the definitions of terms used throughout TOGAF and release notes detailing the changes between this version and the previous version of TOGAF Part II: Architecture Development Method (ADM)
  • 7. Part III: ADM Guidelines and Techniques Part IV: Architecture Content Framework This part describes the TOGAF content framework, including a structured metamodel for architectural artifacts, the use of re-usable Architecture Building Blocks (ABBs), and an overview of typical architecture deliverables. Part V: Enterprise Continuum and Tools This part discusses appropriate taxonomies and tools to categorize and store the outputs of architecture activity within an enterprise. Part VI: TOGAF Reference Models This part provides two architectural reference models, namely the TOGAF Technical Reference Model (TRM), and the Integrated Information Infrastructure Reference Model (III-RM). Part VII: Architecture Capability Framework This part discusses the organization, processes, skills, roles, and responsibilities required to establish and operate an architecture practice within an enterprise. The following summarize TOGAF components and their relation to each other 1-Central to TOGAF is the Architecture Development Method ADM (the methods) 2- The architecture capability operates the method. Architecture capability framework 3- The method is supported by a number of guidelines and techniques -ADM Guidelines and Techniques 4-This produces content to be stored in the repository -Architecture Content Framework 5-which is classified according to the Enterprise Continuum 6- The repository is initially populated with the TOGAF Reference Models The ADM describes a process for deriving an organization-specific enterprise architecture that addresses business requirements It provides a number of architecture development phases
  • 8. It provides a narrative of each architecture phase It provides cross-phase summaries that cover requirements management. Enterprise continuum explains how generic solutions can be leveraged and specialized in order to support the requirements of an individual organization The Enterprise Continuum is a view of the Architecture Repository that provides methods for classifying architecture and solution artifacts as they evolve from generic Foundation Architectures to Organization- Specific Architectures Architecture Building Blocks (ABBs) typically describing the required capability in order to shape the Solution Building Blocks (SBBs) which would represent the components to be used to implement the required capability The ADM provides a tested and repeatable process for developing architectures. The ADM includes establishing an architecture framework, developing architecture content, transitioning, and governing the realization of architectures. All of these activities are carried out within an iterative cycle of continuous architecture definition and realization that allows organizations to transform their enterprises in a controlled manner in response to business goals and opportunities. Pattern
  • 9. A pattern is “an idea that has been useful in one practical context and will probably be useful in others”. Architecture (Syllabus Reference: Unit 3, Learning Outcome 4) Architecture has two meanings depending upon its contextual usage: 1. A formal description of a system, or a detailed plan of the system at component level to guide its implementation 2. The structure of components, their inter-relationships, and the principles and guidelines governing their design and evolution over time 1- Governance Is the practice by which xyz is controlled within enterprise wide activities Enterprise continuum is a view for Architecture repository 1-Central to TOGAF is the Architecture Development Method ADM 2- The architecture capability operates the method. Architecture capability framework 3- The method is supported by a number of guidelines and techniques -ADM Guidelines and Techniques 4-This produces content to be stored in the repository -Architecture Content Framework 5-which is classified according to the Enterprise Continuum
  • 10. 6- The repository is initially populated with the TOGAF Reference Models Ch3 ______ The Architecture Development Method (ADM) forms the core of TOGAF and is a method for deriving organization-specific enterprise architecture that support business requirements The ADM provides a tested and repeatable process for developing architectures. The ADM includes 1-establishing an architecture framework, 2- developing architecture content 3-, transitioning, and governing the realization of architectures. All of these activities are carried out within an iterative cycle of continuous architecture definition and realization that allows organizations to transform their enterprises in a controlled manner in response to business goals and opportunities. The ADM is described as a number of phases within a process of change illustrated by an ADM cycle graphic (see following). Phases within the ADM are as follows: each phase is described as a narrative Architecture Building Blocks (ABBs) typically describing the required capability in order to shape the Solution Building Blocks (SBBs) which would represent the components to be used to implement the required capability Deliverable + artifacts + building blocks archived in architecture repository as stand red or ref model or snapshot of arch landscape in a point of time The Enterprise Continuum is a view of the Architecture Repository that provides methods for classifying architecture and solution artifacts as they evolve from generic Foundation Architectures to Organization- Specific Architectures explains how generic solutions can be leveraged and specialized in order to support the requirements of an individual organization
  • 11. Ch6 Architecture repository ___________________ The Architecture Metamodel The Architecture Capability The Architecture Landscape The Reference LibraryThe Standards Information BaseThe Reference Library The governance log describes the organizationally tailored application of an architecture framework, including a method for architecture development and a metamodel for architecture content. The Architecture Capability defines the parameters, structures, and processes that support governance of the Architecture Repository. The Architecture Landscape shows an architectural view of the building blocks that are in use within the organization today (e.g., a list of the live applications). The landscape is likely to exist at multiple levels of granularity to suit different architecture objectives. The Standards Information Base captures the standards with which new architectures must comply, which may include industry standards, selected products and services from suppliers, or shared services already deployed within the organization. The Open Group provides an example of a Standards Information Base on its web site.8 The Reference Library provides guidelines, templates, patterns, and other forms of
  • 12. reference material that can be leveraged in order to accelerate the creation of new architectures for the enterprise. Ch -8- ADM Guidelines and Techniques Interoperability is a Key Enabler for eGovernment Guidelines till how to adapt adm Technics tills how to apply adm effectively TheTOGAF 9 Part III: • Architecture Principles • Stakeholder Management • Architecture Patterns • Business Scenarios • Gap Analysis • Migration Planning Techniques • Interoperability Requirements • Business Transformation Readiness Assessment • Risk Management • Capability-Based Planning Architecture principles are a set of general rules and guidelines for the architecture being developed. Principles are an initial output of the Preliminary Phase and are used throughout the ADM to provide a framework for guiding decision- making within the enterprise. They are intended to be enduring and seldom amended, and inform and support the way in which an organization sets about fulfilling its mission. Often they are one element of a structured set of ideas that collectively define and guide the organization, from values through to actions and results
  • 13. Depending on the organization, principles may be established at any or all of three levels: 1-Enterprise principles provide a basis for decision-making and dictate how the organization fulfills its mission. Such principles are commonly found in governmental and not-for-profit organizations, 2-IT principles provide guidance on the use and deployment of all IT resources and assets across the enterprise. They are developed to make the information environment as productive and cost-effective as possible 3-Architecture principles are a subset of IT principles that relate to architecture work. They reflect consensus across the enterprise, and embody the spirit of the enterprise architecture. Architecture principles can be further divided into: — Principles that govern the architecture process, affecting the development, maintenance, and use of the enterprise architecture — Principles that govern the implementation of the architecture Ch-10- views viewpoints and stakeholders -------------------------------------------------------- system A system is a collection of components organized to accomplish a specific function or set of functions. Stakeholders Stakeholders are people who have key roles in, or concerns about, the system; for example, users, developers, etc. Stakeholders can be individuals, teams, organizations, etc. Concerns --------------
  • 14. Concerns are key interests that are crucially important to stakeholders, and determine the acceptability of the system. Many types of concerns one of them is cross cutting concerns which is named as quality attributes The terms “concern” and “requirement” are not synonymous. A concern is an area of interest. Concerns are the root of the process of decomposition into requirements. Concerns are represented in the architecture by these requirements. Requirements should be SMART A viewpoint defines the perspective from which a view is taken. It defines how to construct and use a view, the information needed, the modeling techniques for expressing and analyzing it The relationship between viewpoint and view is analogous to that of a template and an instance of the completed template. In constructing an enterprise architecture, an architect first selects the viewpoints (templates), then constructs a set of corresponding views (instances) The architect uses views and viewpoints in the ADM cycle during Phases A through D for developing architectures for each domain (Business, Data, Application, and Technology). Selection of ref model and viewpoints and tools must occurs before development of base line or target arch ADM Actual solution in phase E Interoperability logically selected and implemented in phase F Architecture realization. E,F,G Applying Iteration to the ADM _______________________ 1-architecture context iteration pre-vision 2- architecture definition iteration B-F or B,C,D
  • 15. 3-architecture transition iteration E-F 4-architecture governance iteration G-H Content framework ________________ 1-architecture principles ,vision, and requirement 2. 2.1-preliminary phase 2.1.1 architecture principles 2.2 architecture vision 5 business architecture ------------------------ 5.1 motivation 5.1.1 drivers 5.1.2 goals 5.1.3 objectives 5.1.4 measures 5.2 organization 5.2.1 organization 5.2.2 location 5.2.3 actor ,role 5.3 function 5.3.1 business services ,contracts,service qualities 5.3.2 process, events,controls ,products 5.3.3