Enterprise Architecture

TrainingHeights provide leading training solutions for the biggest standards in Enterprise Architecture (EA) in nigeria. All our courses are accredited by The Open Group.

The courses we offer are suitable for people who are looking to gain a globally recognized qualification in the Enterprise Architecture domain.

TOGAF® 9 Certification is regarded as the industry-standard framework and methodology for enterprise architecture practice, whilst ArchiMate® 2.0 is the modeling language that supports the creation of TOGAF architecture models.

Explore Enterprise Architecture in more detail

Welcome to the online center for Enterprise Architecture information and advice, free learning resources, and accredited online training courses.

For a quick overview of Enterprise Architecture, what it is, and the many benefits for yourself, your team, or your organization, just watch our handy video guide! For more guides and promos, visit our free video library.

Alternatively, click and expand the tabs below to learn more about the history of Enterprise Architecture, it's evolution within the business and IT industry, and how understanding and practicing it can benefit you and your organization.

A brief history of Enterprise Architecture


  • Since IT departments have existed they have always looked for ways to contribute towards the long-term goals of the enterprise; and accordingly, to justify the appropriate investment.

    Out of these efforts, the domain of Enterprise Architecture (EA) has emerged as a set of practices used to govern this alignment between technology investment and business/organizational strategy.

    As IT departments became more commonplace within organizations, frameworks (such as IBM’s BSP - created in 1980) gave IT Governance its first formal methods of simplifying, analyzing and designing an IT architecture.

    Using an EA framework made it far simpler to identify threats and opportunities, plan migration paths, guide IT capital expenditures, and create blueprints for development.

    Over the course of the 80s, these ideas were further discussed, developed and popularized. Then in the early 90s the Open Group began work on ‘TOGAF’ - The Open Group Architecture Framework.

    TOGAF used an earlier framework developed by the US Department of Defence as a basis, and was the first extensive and comprehensive EA framework to be provided free of charge to organizations for non-commercial purposes.

    As the technology landscape has changed and evolved, so has the focus of Enterprise Architecture. For example, in the early days of TOGAF, two key issues for IT Governance were interoperability and integration.

    The siloing and separation of information into different IT systems which could not communicate was a big problem, as it blocked the development of business processes which were company-wide. Increasing information-flow across IT systems was therefore a major concern for EA at this time.

    More recently, plentiful provision of middle-ware has made interoperability less of an issue. The trend for EA has therefore been to expand in its scope - from mainly addressing issues within and between IT systems, to becoming increasingly business focused, strategic and pragmatic.

    Cumbersome, slow moving IT departments are increasingly viewed as a thing of the past, and current EA frameworks, such as TOGAF 9.1, fully leverage and maximize IT as an enabler of change within an ‘Agile’, responsive organization.




How TOGAF can benefit your organization?
  • Like most frameworks, TOGAF provides a way for organizations to increase the robustness, flexibility and efficiency of their Enterprise Architecture, enabling the business to change and adapt to the requirements of an unpredictable future. But what are the advantages of TOGAF over other EA frameworks?

  • Collaborative: TOGAF was developed through the combined efforts of 300 of the world’s leading organizations. This broad base of knowledge and experience ensures that the framework is tried and tested.

  • Open-source resource: The volume of materials found in TOGAF is unmatched, and is available for free via the Open Group’s website. These resources are a valuable resource for novice and experienced practitioners alike.

  • Flexible: The TOGAF framework is general, but can be tailored to suit the specific needs of any organization. In addition, it has been designed to be compatible with other frameworks.

  • Popular: TOGAF has been around for a long time, and as a result it is widely known and accepted, and there are a large number of qualified practitioners and trainers available. This means that it is easy to find people with the right skills when you need them.

  • Constantly improving: TOGAF evolves with each update, ensuring that it incorporates and promotes the latest best practices.

The TOGAF qualification structure
  • TOGAF certification can be achieved at two levels. Level 1 is also known as TOGAF 9 Foundation, and level 2 is known as TOGAF 9 Certified.Here's what each level consists of:
    TOGAF 9 Foundation

    Certification at this level validates your knowledge and comprehension of:

    - The terminology, structure, and basic concepts of the TOGAF 9 standard.
    - The core principles of Enterprise Architecture and the TOGAF standard.

    This certification is suitable for those who:

    - Require a deeper understanding of the TOGAF standard.
    - Are working in roles associated with an architecture project such as those responsible for planning, execution, development, delivery, and operation.
    - Are looking for a first introduction to the TOGAF 9 standard.
    - Want to achieve Level 2 certification.

    TOGAF 9 Certified

    Certification at TOGAF 9 Level 2, known as TOGAF 9 Certified, validates your ability to analyze and apply the knowledge gained at TOGAF 9 Foundation.

    For this reason, the learning objectives for Level 2 focus on application and analysis.

    This certification is suitable for those who:

    - Require a deeper understanding of the TOGAF 9 standard.
    - Are working in an organization where the TOGAF 9 standard has been adopted and who need to participate in architecture projects and initiatives.
    - Will be responsible for developing architecture artifacts.
    - Wish to introduce the TOGAF 9 standard into an architecture practice.
    - Want to achieve a recognized qualification to demonstrate their detailed knowledge of the TOGAF 9 standard.

    Qualification paths

    EA StructureAs you can see in the diagram, there are two qualification paths for an individual. The first is step wise, which involves sitting the Level 1 ‘Foundation’ and Level 2 ‘Certified’ exams in sequence. The second path combines both, combining all the materials for Levels 1 and 2 in a single exam.

    Click the image to enlarge

Sitting the TOGAF exams

The TOGAF 9 Part 1 or Combined Parts 1 and 2 exam can be taken by anyone - there are no prerequisites.

Sitting the TOGAF Part 2 exam requires that you have first taken and passed the Part 1 exam. You can sit the separate Part 1 and Part 2 exams sequentially on the same day if you sit them both at the same ATTC provider. If you choose to sit the Part 2 exam on a different day to your Part 1, then you must have a TOGAF 9 Foundation entry in the Directory of Certified people or have passed at least the Part 1 section of the Combined examination.

The TOGAF Level 1/ Foundation exam is mostly concerned with assessing knowledge, whereas the TOGAF Level 2/ Certified exam is concerned with assessing your insight gained through experience in the application of that knowledge. If you already have the necessary experience of applying TOGAF principles, such that you could confidently sit the Level 2 exam and expect to pass, then sitting the Combined exam is more cost effective and will save you time.

However, if you still need time to gain experience in the application of TOGAF principles you may choose to sit each exam separately.

Bear in mind that if you only pass one section of the Combined exam, you will need to retake that section in order to gain the complete certification for Levels 1 and 2. It is not possible to take the Combined exam, pass level 1 only, and achieve TOGAF Foundation certification.

If you sit the individual exams for Levels 1 and 2 on the same day however, and only pass Level 1, you will be granted TOGAF Foundation certification.