02b Basic Concepts 2 Flashcards
Define what an architecture framework is.
- It is a foundational structure / set of structures for developing a broad range of different architectures.
- Describes a method for designing a target state of the enterprise i.t.o. a set of building blocks, & for showing how the building blocks fit together.
- Contains a set of tools & provide a common vocabulary.
- Includes recommended standards & compliant products to implement the building blocks.
Describe why you need a framework for Enterprise Architecture?
- Speeds up & simplifies architecture development
- Ensures more complete coverage of the designed solution
- Makes certain that the architecture selected allows for future growth in response to the needs of the business.
The value of a framework is that it provides a practical starting point for an architecture project.
Explain why TOGAF is suitable as a framework for enterprise architecture
TOGAF has been collaboratively developed by 300+ Architecture Forum member companies from some of the world’s leading companies and organizations.
TOGAF results in enterprise architecture that:
- is consistent,
- reflects the needs of stakeholders,
- employs best practice, and
- considers both current requirements and the perceived future needs of the business.
What are the different architecture domains that TOGAF deals with?
TOGAF 9 covers the development of four architecture domains:
- Business Architecture
- Data Architecture
- Application Architecture
- Technology Architecture
What is covered in Business Architecture?
- Business strategy,
- Governance,
- Organization, and
- Key business processes.
What is covered in 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.
What is covered in Data Architecture?
The structure of an organization’s
- logical and physical data assets and
- data management resources
What is covered in Technology Architecture?
The software and hardware capabilities required to support deployment of business, data, and application services.
This includes
- IT infrastructure,
- middleware,
- networks,
- communications,
- processing, and
- standards.
Describe the structure of TOGAF, and briefly explain the contents of each part.
- Central - is the Architecture Development Method
- The Architecture Capability Framework operates the ADM method.
- ADM is supported by a number of ADM Guidelines and Techniques.
- The Architecture Content Framework define how the content is to be stored in the repository, which is classified according to the Enterprise Continuum.
- The repository is initially populated with the TOGAF Reference Models.
What is the ADM?
The ADM describes a process for deriving an organization-specific enterprise architecture that addresses business requirements.
Provides guidance for architects on a number of levels:
• It provides a number of architecture development phases (Business Architecture, Information Systems Architectures, Technology Architecture) in a cycle, as an overall process template for architecture development activity.
• It provides a narrative of each architecture phase, describing the phase in terms of objectives, approach, inputs, steps, and outputs. The inputs and outputs sections provide a definition of the architecture content structure and deliverables (a detailed description of the phase inputs and phase outputs is given in the Architecture Content Framework).
• It provides cross-phase summaries that cover requirements management.
Purpose of the ADM Guidelines and Techniques
Provides a number of guidelines and techniques to support the application of the ADM.
The guidelines address adapting the ADM for usage scenarios, including :
- different process styles (e.g., the use of iteration) and
- specific specialty architectures (such as security).
The techniques support specific tasks within the ADM :
- Defining principles
- Business scenarios
- Gap analysis
- Migration planning
- Risk management, etc.
What does the Architecture Content Framework provide?
It provides a detailed model of architectural work products, including:
- deliverables,
- artifacts within deliverables, and
- the Architecture Building Blocks (ABBs) that deliverables represent.
What is the role of the Enterprise Continuum
It provides a model for structuring a virtual repository and provides methods for classifying architecture and solution artifacts, showing
- how the different types of artifacts evolve, and
- how they can be leveraged and re-used.
Describe TOGAF’s Reference Models
TOGAF provides two reference models for possible inclusion :
- TOGAF Foundation Architecture Technical Reference Model : An architecture of generic services and functions - provides a foundation on which specific architectures and Architecture Building Blocks (ABBs) can be built.
- Integrated Information Infrastructure Reference Model (III-RM) : The III-RM is based on the TOGAF Foundation Architecture - specifically aimed at helping design architectures that enable & support the vision of Boundaryless Information Flow.
Describe the Architecture Capability Framework
This is a set of resources, guidelines, templates,background information, etc. provided to help the architect establish an architecture practice within an organization.
