Enterprise Architecture

The California Department of Technology (CDT) provides leadership for the State of California’s information technology programs and works collaboratively with other information technology leaders throughout state government. CDT has a role as a strategic planner and architect for the State’s information technology programs and as a leader in formulating and advancing a vision for that program.

The State of California adopts the following Federal Chief Information Officers Council definition of enterprise architecture, as referenced in the Common Approach to Federal Enterprise Architecture:

“Enterprise Architecture (EA) means a strategic information asset base, which defines the mission; the information necessary to perform the mission, the technologies necessary to perform the mission, and the transitional processes for implementing new technologies in response to changing mission needs; and includes a baseline architecture, a target architecture, and a sequencing plan.”

Enterprise Architecture identifies the business processes that execute or support an organization’s mission and defines how Information Technology (IT) assets enable those processes. The purpose of EA is to optimize and transform the processes, information, application systems and technologies into an efficient and integrated environment, supportive of the execution of business strategy.

To help execute business strategy and realize strategic goals, the primary focus of the EA practice for a state agency is the creation of the above referenced strategic information asset base. This strategic information asset base is intended to contain models and artifacts describing:

  • Mission-specific business capabilities, supporting business capabilities and the business processes used to realize those capabilities (business architecture).
  • Information models depicting the information used and maintained by these business processes (information architecture).
  • Applications and their key components used to fully or partially automate the business processes and maintain the information (applications architecture).
  • Technologies used by these applications (technology architecture), i.e., application platforms (including hardware devices and system software) and networks (to provide communication paths).
  • Inter-relationships among the above components of the architectures and their relationships to organization’s strategic goals and stakeholder needs.

This strategic information asset base includes:

  • Baseline Architecture
  • Target Architecture – The target enterprise architecture reflects the enterprise transformation necessary to meet its strategies goals and achieve its desired business outcomes.
  • It is implemented through a series of transformation projects – that is, by adopting an Enterprise Roadmap.
  • Enterprise Roadmap is the series of transformation projects characterized by the following: •Clear definition of objectives and scope for each project towards reaching the target enterprise architecture.
  • Specific sequence in which those projects need to be executed.

The development, use and maintenance of Enterprise Architecture (EA) in the State of California is planned to use a federated approach. In this approach, individual state agencies are responsible for developing, using and maintaining their respective Enterprise Architectures while utilizing the framework, method, guidance, standards and reusable assets, which are provided by the state’s Office of Enterprise Architecture (OEA).

Cross-Agency Initiatives (CAIs) are necessary to reduce duplication, complexity, and promotion of shared solutions, shared services and shared enterprise business applications. The State Enterprise Architecture Committee (EAC) and the state’s OEA are conduits to the identification of such CAIs along with other collaborative groups such as ITC and Project Oversight. Once CAIs are identified, approved, and sponsored by authorized executives, the architecture work for those CAIs is planned to be accomplished through collaboration under the direction of a designated executive sponsor.

Successful implementation of the federated approach, requires:

  • Consistent understanding of enterprise architecture concepts
  • Focus on creating business-outcome-driven actionable EA deliverables
  • Uniform implementation of EA programs within and across state agencies

CDT, in collaboration with the State EAC is updating the State of California’s EA programs using a phased approach.

Phase 1
The following document assists State agencies in developing and using enterprise architecture effectively:

Phase 2
Introduction of additional guidance through a set of Reference Architectures (RAs). RAs are the means through which CEAF 2.0 provides best-practice-based architectural solutions to build or harvest core business and IT capabilities that can be reused and shared throughout the State government. They are a key part of CEAF’s approach to progressively mature EA in the State. RAs are also a key input to the State agency architects in creating their agency’s target EA.

The Office of Enterprise Architecture hosts a monthly Enterprise Architecture Community (EAC) meeting where EA relevant topics are addressed with opportunities for group discussion.

If you would like to participate in the monthly EAC meeting, please contact Tim Murphy.

Collaboration Site

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For more information, please contact Tim Murphy at (916) 431-5842 or by email.