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Enterprise Architecture

Gartner:
Enteprise Architecture is the process of translating business vision and strategy into effective enterprise change by creating, communicting and improving the key principles and models that describe the enterprise's future state and enable its evolution.
IEEE 147.1:
Architecture is the fundamental organization of a system embodied in its components, their relationships to each other, and to the environment, and the principles guiding its design and evolution
TOGAF defines architecture as
The structure of components, their inter-relationships, and the principles and guidelines governing their design and evolution over time.

Reasons to have an architecture

A well-designed architecture promises to

Domains

Architecture domains include
Business Architecture Overall strategy, governance, organization, business processes (Business applications: CRM, CIM, ERP …)
Data Architecture Master data management, data warehouses, data mart, ETL, Messaging Frameworks
Application Architecture Interaction between applications, relation to core business processes, project life cycle, software development life cycle, portfolio management, process compliance …
Technology Architecture Software, hardware, infrastructure, standards (Operating systems, messaging, hardware, network …) to support the above
Security (Risk management, compliance, information security…)

Roadmap

The enterprise architecture roadmap lists the projects and programs that need to be untertaken to transition the current enterprise architecture to the target future vision.
This roadmap should be aligned to the business roadmap.

Frameworks

An architecture framework organizes an architecture's
Such an architecture framework
Some named frameworks include:

Syracom Enterprise Architecture Method (SEAM)

The SEAM framework tries to structure the EAM capability of an organization.
Conception areas:

Tools

Enterprise Information Security Architecture (EISA)

Types of architects

Architecture in Agile

The 11th principle of Agile states that the best architecture (as well as requirements and designs) emerge from self-organizing teams.

Other keywords

See also

Software architecture
Solution architecture
ISO 42010

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