A node can represent a role e. At this milestone, the stakeholders must agree on the following: Choose three Business Architecture artifacts and describe how they are used. Normally an EA takes the form of a comprehensive set of cohesive models that describe the structure and functions of an enterprise.
An EA roadmap is likely to include more then a single proposed solution as illustrated in Figure 3which may result in multiple, simultaneous implementations. Then and in later papers, Zachman used the word enterprise as a synonym for business.
A comprehensive analysis of the existing system to identify its coupling to other systems. Start the enterprise business model. Needless to say, after you create the roadmap for the enterprise architecture and receive stakeholder approval on it, you ought to make the best effort to update it over time.
Within the context of this document, Enterprise Life Cycle does not refer to a specific methodology or a specific bureau's approach. Typically, proposals and decisions encompass both the enterprise and its environment.
The release of a brand new system may entail hardware purchase and setup while updating an existing system may entail data conversions and extensive coordination with the user community.
Phase A of the process is dedicated to articulating the EA vision. Today, business functions are often called business capabilities. Having collected data from various sources, create a roadmap to advise the stakeholders -- including senior management, business, and technology leaders -- about how you intend to act upon the needs they have communicated to you.
Even though the models are originally from government, they are equally applicable to industry. Equally important is to define what is not in the project. The Enterprise Unified Process was developed to address this exact need. Build a panoramic understanding of the existing technology environment.
This contrasts with TOGAF's purpose, which is to support enterprise architecture implementation and maintenance. Components and subjects of the enterprise architecture discipline Scope of the enterprise architecture Enterprise architecture activities start long before projects driven by solution architecture commence, and are ongoing continuously throughout the lifespan of the enterprise.
The solution development methodology is used within the Portfolio Management Framework to plan, create, and deliver the architectural components specified in the project and portfolio charters.
Enterprise integrating — According to this school of thought, the purpose of EA is to achieve greater coherency between the various concerns of an enterprise HR, IT, Operations, etc. Business Architecture relates business elements to business goals and elements of other domains.
The Information Exchange Matrix documents the information exchange requirements for an Enterprise Architecture Information exchange requirements express the relationships across three basic entities activities, business nodes and their elements, and information flowand focus on characteristics of the information exchange, such as performance and security.
Adequate plans are in place for the next phase Elaboration. Capability Maturity Models typically identify selected factors that are required to exercise a capability. Technology is a major enabler of business processes the other one being peoplewhich implies that you won't go too far without proper understanding of your main tool.
This phase draws upon on the baseline and the target architectures started in Phase A Architecture Vision and results of the business gap analysis part of the Business Architecture to deliver Application and Data architectures for both current and envisaged environments, within the scope and according to the plan outlined in the Statement of Architectural Work.
View image at full size Figure 1: However, depending on how such principles are defined and promulgated within the enterprise, it may be possible for the set of Architecture Principles to also restate, or cross-refer to a set of business principles, business goals, and strategic business drivers defined elsewhere within the enterprise.
They expand the operating model, which is a representation for how an organization operates across a range of domains in order to accomplish its function see A Method for Identifying Process Re-Use Opportunities to Enhance the Operating Model, M.
ADM requirements management deals with all kinds of requirements, including most notably business drivers, concerns, and new functionality and change requests. Benefits[ edit ] The benefits of enterprise architecture are achieved through its direct and indirect contributions to organizational goals.
An enterprise architecture framework (EA framework) defines how to create and use an enterprise architecture.
inputs, phases (steps or activities) and outputs. It may be supported by approaches, techniques, tools, principles, rules, and practices. The extensions include two new phases, Production and Retirement, and several new disciplines: Operations and Support and the seven enterprise disciplines (Enterprise Business Modeling, Portfolio Management, Enterprise Architecture, Strategic Reuse, People Management, Enterprise Administration, and Software Process Improvement).
Jan 15, · TOGAF iterations (which are more often called cycles) are normally longer then RUP iterations, and span multiple phases of enterprise architecture implementation and maintenance.
This is not surprising, as the scope of an EA is much larger than a single RUP project. Known by a variety of other names such as Information Architecture, Application Architecture, Business System Architecture, Enterprise Wide Technical Architecture, the basic process is the same – to develop a high level plan of how IT will meet future business problems.Enterprise architecture phases