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.

For more information, please contact Ben Word at (916) 228-6166 or by email at Ben.Word@state.ca.gov.