TOGAF 9.1 Series - Enterprise Continuum and Tools

Have you ever heard of TOGAF and never really understood it? In my TOGAF 9.1 series of articles, I will give you summary points what TOGAF is and what you will learn in TOGAF.

I have written the TOGAF exam a while back. I thought that writing this series will let me review the TOGAF content and believe that it would be valuable to others. It is always a good practice to regularly review the contents of a topic that you have learned.

I'm not going to rewrite the official TOGAF books content in my article series. Some sections will only contain bullet points of key terms used in TOGAF. Always reference the official TOGAF book for more details.

Legal Points

TOGAF is a trademark of The Open Group. They maintain the TOGAF standard and release new versions of the framework. I highly recommend that you read the official website and content of TOGAF on the official site: http://www.opengroup.org/subjectareas/enterprise/togaf

The contents in my article series are my opinions and in no way reflects the views of The Open Group.

If you are interested in learning all the finer details of TOGAF or want to write the exam then buy the official book:

TOGAF Version 9.1 Official Book

Figure 1: TOGAF Version 9.1 book

Enterprise Continuum and Tools

Enterprise Continuum

Partitions of Continuum
  • Enterprise Continuum
    • Is the outermost continuum and classifies assets related to the context of the overall enterprise architecture.
  • Architecture Continuum
    • Offers a consistent way to define and understand the generic rules, representations and relationships in an architecture, including traceability and derivation relationships.
  • Solution Continuum
    • Provides a consistent way to describe and understand the implementation of the assets defined in the Architecture Continuum.
Relationship between Architecture Continuum and Solution Continuum
  • Guidance
  • Direction
  • Support
Architecture Continuum Transformations
  • Foundation Architectures
    • Consist of generic components, inter-relationships, principles and guidelines that provide a foundation on which more specific architectures can be built.
  • Common Systems Architectures
    • Guide the selection and integration of specific services from the Foundation Architecture to create an architecture useful for building common solutions across a wide number of relevant domains.
  • Industry Architectures
    • Guide the integration of common systems components with industry-specific components and guide the creation of industry solutions for targeted customer problems within a particular industry.
  • Organizational-Specific Architectures
    • Describe and guide the final deployment of solution components for a particular enterprise or extended network of connected enterprises.
Solutions Continuum Transformations
  • Foundation Solutions
  • Common Systems Solutions
  • Industry Solutions
  • Organization-Specific Solutions

Architecture Partitioning

Reasons for Partitioning
  • Organizational unit architectures conflict with one another.
  • Different teams need to work on different elements of architecture at the same time.
  • Effective architecture re-use requires modular architecture segments that can be taken and incorporated into broader architectures and solutions.
Classification Criteria
  • Subject Matter (Breadth)
  • Time
  • Maturity/Volatility
  • Depth
Activities within the Preliminary Phase
  • Determine the organization structure for architecture within the enterprise.
  • Determine the responsibilities for each standing architecture team.
  • Determine the relationships between architectures.
Architecture Content Aggregation (Integration)
  • Organizational Scope
  • Architecture Domains
  • Depth of Detail

Architecture Repository

Classes of Architectural Information
  1. Architecture Metamodel
  2. Architecture Capability
  3. Architecture Landscape
  4. Standard Information Base
  5. Reference Library
  6. Governance Log
Overview of Architecture Repository
  • Enterprise Repository
    • Architecture Repository
    • Solutions Repository
    • Requirements Repository
Architecture Landscape
  • Strategic Architectures
    • Show a long-term summary view of the entire enterprise.
  • Segment Architectures
    • Provide more detailed operating models for areas within an enterprise.
  • Capability Architectures
    • Show in a more detailed fashion how the enterprise can support a particular unit of capability.
Reference Library Materials
  • Standard Bodies
  • Product and Service vendors
  • Industry communities or forums
  • Standard templates
  • Enterprise Best Practices
Reference Library Contains
  • Reference Architectures
  • Reference Models
  • Viewpoint Library
  • Templates

Standard Information Base

Types of Standard
  • Legal and Regulatory Obligations
  • Industry Standards
  • Organizational Standards
Standards Lifecycle
  1. Proposed Standard
  2. Provisional Standard (Trial Standard)
  3. Standard (Active Standard)
  4. Phasing-Out Standard (Deprecated Standard)
  5. Retired Standard (Obsolete Standard)
Standards Classification
  • Business Standards
  • Data Standards
  • Applications Standards
  • Technology Standards
Governance Log Contents
  • Decision Log
    • A log of all architecturally significant decisions that have been made in the organization.
  • Compliance Assessments
    • At key checkpoint milestones in the progress of a project, a formal architecture review will be carried out.
  • Capability Assessments
    • Depending on their objectives, some projects will carry out assessments of Business, IT or Architecture Capability.
  • Calendar
    • Show a schedule of in-flight projects and formal review sessions to be held against these projects.
  • Project Portfolio
    • Hold summary information about all in-flight projects that fall under architectural governance.
  • Performance Measurement
    • Based on a charter for the architecture function, a number of performance criteria will typically be defined.

Articles in the Series

Table of contents
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