Enterprise Architecture is the high-level analysis and documentation of an enterprise in its current and future states of an integrated strategy, business, and technology perspective.An enterprise is an organisation or sub-activity whose boundary can be defined by common-held goals, processes and resources and one common reporting centre.
Enterprise Architecture is driven by strategic goals and business requirements.
Enterprise Architecture = Strategy + Business + Technology
Enterprise Architecture (EA) has got the following characteristics:
- Direction: EA is focused on strategic planning i.e. business transformation, strategic change programmes and not on operational change i.e. run the business. It examines the key business information, application and technology strategies and their impact on business functions.
- Scope: EA is focused on the whole of the business i.e. the Business Model and Business Operating Model for all business and IS/IT functions, and not just on the IS/IT components. EA consists of recognition of all IT levels and provides a general framework for creating enterprise- wide information systems that can help support an organization’s strategy execution in a coordinated manner by aligning business processes with the data and technologies that support them
- Unified principles and practices: EA involves a formal description of the structure and functions of the components of an enterprise (including people, processes, information, and technologies), the interrelations between these components and principles and provides guidelines to govern their creation and development over time.
- Timeline: EA is focused on the long-term view of the future scenarios up to 3/5 years in the future and not just on a short-term view of current state
- Value Chain: EA is focused on the whole of the enterprise i.e. the extended organization and value chain and not just on the scope of a delivery project
- Stakeholders: EA is focused on the needs and concerns of the C-level executives such as CEO, CIO, and COO Etc., business executives, corporate and business strategists, investors, strategic planners.