Foreword. By John A. Zachman. I am delighted that Scott Bernard has written this book, “An Introduction to Enterprise. Architecture.” We need. PDF | The discipline of enterprise architecture (EA) seeks to generate alignment between an organization's electronic information systems. Chapter Five: An Introduction to Enterprise Architecture • I. Introduction ing+Papers+February++/cesifo_wppdf. Accessed January 25,
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Introduction. • A Quick Primer. • Products of Enterprise Architecture. ▫ The Role. • Q&A. Agenda protection/reform/files/perpemethico.gq). Download An Introduction To Enterprise Architecture: Third Edition PDF books; 2. Book Details Author: Scott A. Bernard Pages: Binding. Introduction. The practise of enterprise architecture (EA) is about informing the business decision making process by understanding how complex organizations .
Enterprise Architecture 2. Changes such as mergers and acquisitions, major organisational changes, changes in business ecosystem and increasing regulation all set additional demands on the flexibility of enterprise architecture.
The purpose of enterprise architecture is to: Define business capabilities including processes, data, information technology solutions and overarching ecosystems Plan transformation from current state to target state by defining domain specific roadmaps Execute transformation by taking roadmap-based development initiatives into portfolio steering Support programmes and projects in implementing the development initiatives Introduce architecture principles defining favoured solution platforms and other guiding principles for development request evaluation Ensure data and process consistency with mandatory governance practices.
Digitalisation challenges traditional enterprise architecture planning by having fast development sprints and incremental progress-based planning. It also introduces many new solutions and vendors, resulting in a more fragmented enterprise architecture. Digitalisation employs ecosystems as a playground and uses processes and data that flow over enterprise boundaries.
A traditional monolithic architecture does not support the ecosystem approach and therefore is not optimal for planning digitalisation. The Business Technology Standard proposes an extended capability planning approach, placing ecosystem planning in a central role.
The modularity of this approach allows a more agile development of architecture for different business areas. Figure 2. The model is compliant with traditional enterprise architecture by The Open Group Architecture Framework TOGAF encompassing four aspects of architecture: business, information, application and technology architectures.
The Business Technology Standard defines a core architecture complemented with more specific business domain architectures with the business ecosystem layer on top of everything. A set of tightly interconnected business solutions form a separate solution domain entity. Each entity has a set of common elements and guidelines which are called the core architecture. Companies usually have from four to six solution domain entities that enable the flexibility required to design the architecture within each domain separately.
The focus in this approach is in planning the enterprise architecture at a level high enough to cover the interfaces between an organisation and the players in ecosystems and, at the same time, plan business capabilities supported by data and platforms. Scopes[ edit ] Perspectives, or beliefs, held by enterprise architecture practitioners and scholars, with regards to the meaning of the enterprise architecture, typically gravitate towards one or a hybrid of three schools of thought:  Enterprise IT design — the purpose of EA is the greater alignment between IT and business concerns.
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.
Typically, architecture proposals and decisions encompass all the aspects of the enterprise.
Enterprise ecosystem adaptation — the purpose of EA is to foster and maintain the learning capabilities of enterprises so that they may be sustainable.
Consequently, a great deal of emphasis is put on improving the capabilities of the enterprise to improve itself, to innovate and to coevolve with its environment.
Typically, proposals and decisions encompass both the enterprise and its environment. In practice, an architectural description contains a variety of lists, tables, and diagrams.
These are models known as views. In the case of Enterprise Architecture, these models describe the logical business functions or capabilities, business processes , human roles and actors, the physical organization structure, data flows and data stores , business applications and platform applications, hardware, and communications infrastructure. The individual models in an EA are arranged in a logical manner that provides an ever-increasing level of detail about the enterprise.
The architecture of an enterprise is described with a view to improving the manageability, effectiveness, efficiency, or agility of the business, and ensuring that money spent on information technology IT is justified. A methodology for developing and using architecture to guide the transformation of a business from a baseline state to a target state, sometimes through several transition states, is usually known as an enterprise architecture framework.
A framework provides a structured collection of processes, techniques, artifact descriptions , reference models, and guidance for the production and use of an enterprise-specific architecture description. Benefits[ edit ] The benefits of enterprise architecture are achieved through its direct and indirect contributions to organizational goals.
It has been found that the most notable benefits of enterprise architecture can be observed in the following areas:  Organizational design - Enterprise architecture provides support in the areas related to design and re-design of the organizational structures during mergers, acquisitions or during general organizational change. Enterprise architecture contributes to efficient project scoping and to defining more complete and consistent project deliverables.