decision must be taken as to: The breadth of coverage of the enterprise to be defined, The extent of the time horizon aimed at, including the number and extent of any intermediate time horizons. Iterating within a single phase - TOGAF supports repeated execution of the activities within a single ADM phase as a technique for elaborating architectural content. own set of Target Architecture descriptions. In such cases, a wider view may be taken, whereby an enterprise is represented by several different architecture instances, each explained in Part III: Enterprise Continuum. iteration. reminders to consider which architecture assets from the Enterprise Continuum the architect should use, if any. should be adapted by the architect to meet the requirements of the organization and to work with the architecture tools and In other cases a slightly iteration. The architectural assets to be leveraged in the organization's Enterprise Continuum, including: Assets created in previous iterations of the ADM cycle within the enterprise, Assets available elsewhere in the industry (other frameworks, systems models, vertical industry models, etc.). Architecture must be described. The FEAF approach thus seeks to do a "complete" enterprise architecture across a succession of selected individual business At relevant places throughout the ADM, there are Even at this stage of development, however, there will be architecture assets available from external sources such need for further investigation. complete architecture description being developed. management method. In other cases a slightly different order may be preferred; for example, a detailed inventory of the baseline environment may be done before undertaking the Business Architecture. sufficiently similar to enable critical relationships between the descriptions to be identified, thereby at least indicating the The TOGAF ADM is the result of continuous contributions from a large number of architecture practitioners. purpose of this meta-architecture framework is to: As described above, a significant number of scoping decisions need to be taken, in terms of enterprise focus, architecture TOGAF embraces and extends this definition. description of the ADM itself. the complete overall enterprise would form one independent architecture project, and the other domains would be developed and In a vendor or production environment, a generic architecture for a family of related products is often referred to as a "Product Line Architecture", and the analogous process to that outlined above is termed "(Architecture-based) Product Line Engineering". rapidly changing environment. Although the primary focus of the ADM is on the As a generic method, the ADM is intended to be used by enterprises in a wide range of different geographies and applied in different vertical sectors/industry types. Part VI â The repository is initially populated with the TOGAF Reference Models; Part II: Architecture Development Method. One important factor in this context is the increasing tendency for largescale architecture developments to be undertaken in the Status Quo approach - represents business as usual resulting in continued failure to share information and cope with the The issues involved with adapting the ADM to a specificorganizational context are discussed in detail in 4.3 Adapting the ADM. supportive of, other standard program management processes, such as those for authorization, risk management, business planning and This, of course, is only possible if the implementation schedule is under tight control and relatively short It has eight phases that are one after another worked on. integrated within a meta-architecture framework. conformance. and the questions it is expected to help answer, is an important part of the initial phase of the ADM. For example, if the purpose of a particular architecture effort is to define and examine technology options for achieving a typically stretches the limits of practicality). It integrates elements of TOGAF as well as other available architectural In executing the ADM, the architect is not only developing the end result of an organization-specific architecture, but is also The ADM has been specifically designed with this potential integration in mind. As organizations address common themes (such as service-oriented architecture, and integrated information infrastructure), and Federal Enterprise Architecture Framework (FEA). Enterprise Architecture The Architecture Development Method (ADM) cycle and all the phases that make up the cycle. Cycle - Expansion, The Enterprise Continuum, described in detail in. resources and system complexity typical of such an environment. Cycle - Expansion . Then develop one or more "Transitional Architecture" descriptions, as increments or plateaus, each in line with and of the different architecture domains (Business, Data, Applications, Technology). horizons, accordingly. The new concepts introduced to TOGAF® Standard Version 9.2. It is a reliable, proven method for developing an Enterprise Architecture that meets the business needs of an organisation, utilising the other elements of TOGAF, and other architectural assets available to the organisation. Manage post-implementation change: Any major change can trigger off another cycle of the ADM.. As a generic method, the ADM is intended to be used by enterprises in a wide variety of different geographies and applied in openly available, well-defined methodology. be sufficient for its purpose, and no more. requirements for a whole enterprise are restricted to the overall concerns and thus less complete than for a specific Another architecture instance, perhaps defined only partially, will represent the ultimate target Framework). representing the enterprise at a particular point in time. The overall structure and contents of the TOGAF® Standard Version 9.2 document and the key subject matter content. Other possible reasons for wanting to adapt the ADM include: The ADM is one of the many corporate processes that make up the corporate governance model: It is complementary to, and supportive of, other standard program management processes, such as those for authorization, risk management, business planning and budgeting, development planning, systems development, and procurement. One reason for wanting to adapt the ADM, which it is important to stress, is that the order of the phases in the ADM is to some extent dependent on the maturity of the architecture discipline within the enterprise. Usage of architecture material can be monitored, and compliance with standards, models, and principles can be exhibited, via: A compliance assessment process that describes what the user is subscribing to, and assesses their level of compliance. For Accompanying the standard is a portfolio of guidance material, known as the TOGAF Library, to support the practical application of the TOGAF approach Content Framework : The TOGAF standard includes a content framework to drive greater consistency in the outputs that are created when following the Architecture Development Method (ADM). Iterating between the phases - TOGAF describes the concept of iterating across phases (e.g., returning to Business Architecture on completion of Technology Architecture). Some regard this as an extreme position in terms of vertical scope, It describes a methodfor developing an enterprise architecture, and forms the core of TOGAF. achieve a suitable compromise between the contractor's existing practices and the contracting enterprise's requirements. ITIL), Key decisions and responsible personnel for any architecture project that has been sanctioned by the governance process, A reference for future architectural and supporting process developments, guidance, and precedence. including, but not limited to, the resultant enterprise-specific architecture. the enterprise's own Enterprise Continuum with relevant re-usable building blocks. The ADM is being mandated for use by a prime or lead contractor in an outsourcing situation, and needs to be tailored to achieve a suitable compromise between the contractor's existing practices and the contracting enterprise's requirements, The enterprise is a small-to-medium enterprise, and wishes to use a "cut-down" method more attuned to the reduced level of resources and system complexity typical of such an environment. "federations" of architecture. project, simply because it is widely recognized to be at the limits of the state of the art, a fact that John Zachman himself organization's IT governance process. each architecture domain (Business, Data, Applications, Technology) included in the architecture effort. The TOGAF Resource Base is a set of resources - guidelines, templates, checklists, and other detailed materials - that support Architecture Roadmap is one of the TOGAF deliverables you can create with the TOGAF software. By this approach, the Target Architecture work is split into two or more discrete stages: In such an approach, the Target Architectures are evolutionary in nature, and require periodic review and update according to There are many reasons for wanting to limit the scope of the architecture activity to be undertaken, most of which come down to At the present time, the state of the art is such that architecture integration can be accomplished only at the lower end of the In each case, particularly in largescale environments where architectures are Architectural Pattern example: It may be used in conjunction with the set of deliverables of another framework, where these have been deemed to be more In such cases, the paramount need is to manage and exploit the The TOGAF ADM defines a recommended sequence for the various phases and steps involved in developing an architecture, but it cannot recommend a scope - this has to be determined by the organization itself, bearing in mind that the recommended sequence of development in the ADM process is an iterative one, with the depth and breadth of scope and deliverables increasing with â¦ Architecture, is described in greater detail in Phase D: Technology Architecture . Much of the TOGAF documentation covers the ADM, and everything else in TOGAF can be mapped back to the ADM.. There are only three choices: all of which are risky and/or hugely expensive. Allow the architect to understand how components fit into the framework, Derive the architectural models that focus on enterprise-level capabilities, Define the conformance standards that enable the integration of components for maximum leverage and re-use, Trial and error ("knocking down the walls"), Reverse engineering the architecture from the existing systems. This is the famous circle called the Architecture Development Methods (ADM). The individual sections of the Resource Base are described separately in Part IV: Resource Base so The Open Group Architecture Framework is a widely used standard for Enterprise Architecture practices. It For example, the business principles may dictate that the enterprise be prepared to adjust its business processes to meet the needs of a packaged solution, so that it can be implemented quickly to enable fast response to market changes. There are two basic approaches to federated architecture development: The US Government, and in particular the US Department of Defense (DoD), has undertaken and published leading work in the field The TOGAF Architecture Development Method (ADM) is the result of continuous contributions from a large number of architecture practitioners. In some cases - for Step 1. Define scope of work and prepare for rollout: This activity is made of 6 distinct steps, all of which are covered in our TOGAF training course. Note: The ADM is described in Part II: Architecture Development Method (ADM). to load the Contents It was developed in 1995 to help enterprises and enterprise architects align on cross-departmental projects in a structured manner to facilitate key business objectives. It is often necessary to sub-optimize in a particular area, in order to optimize at the The business rationale behind Enterprise Architecture and TOGAF® Standard. The TOGAF ADM defines a recommended sequence for the various phases and steps involved in developing an architecture, but it principles, models, and standards) to allow interoperability, migration, and conformance between federated architectures. particular capability, and the fundamental business processes are not open to modification, then a full Business Architecture may This approach focuses on major business areas (e.g., grants or common financial systems) and is more likely to succeed integratability spectrum. Phase G: Implementation Governance provides an architectural oversight of the implementation. There are two other main parts to TOGAF, besides the ADM: As mentioned above, the Enterprise Continuum provides a framework and context for the leveraging of relevant architecture assets The level of detail â¦ sphere. target" syndrome. projects. in terms of getting buy-in from large numbers of stakeholders. Vertical scope, or level of detail: To what level of detail should the architecting effort go? Phase C: Information Systems Architectures describes the development of Information Systems Architectures to support the agreed Architecture Vision. used to identify the necessary definitions and selections in the Foundation Architecture. 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