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Segment architecture is a detailed, formal description of areas within an enterprise, used at the program or portfolio level to organize and align change activity. /ref>
It defines a simple roadmap for a core mission area, business service, or enterprise service. Segment architecture is driven by
business management
Business administration, also known as business management, is the administration of a commercial enterprise. It includes all aspects of overseeing and supervising the business operations of an organization. From the point of view of management ...
and delivers products that improve the delivery of services to citizens and agency staff. From an investment perspective, segment architecture drives decisions for a
business case A business case captures the reasoning for initiating a project or task. It is often presented in a well-structured written document, but may also come in the form of a short verbal agreement or presentation. The logic of the business case is that, ...
or group of business cases supporting a core mission area or common or shared service. The primary stakeholders for segment architecture are business owners and managers. Segment architecture is related to Enterprise architecture (EA) through three principles:
* Structure: segment architecture inherits the framework used by the EA, although it may be extended and specialized to meet the specific needs of a core mission area or common or shared service.
* Reuse: segment architecture reuses important assets defined at the enterprise level including: data; common
business process
A business process, business method or business function is a collection of related, structured activities or tasks by people or equipment in which a specific sequence produces a service or product (serves a particular business goal) for a parti ...
es and investments; and applications and technologies.
* Alignment: segment architecture aligns with elements defined at the enterprise level, such as business strategies, mandates, standards, and performance measures.
Solution architecture Solution architecture, term used in information technology with various definitions such as; "A description of a discrete and focused business operation or activity and how IS/ IT supports that operation".
Definitions
The Open Group's definition ...