global information ecosystem—The union of all of the information ecosystems in the enterprise.

health information model—An authoritative set of policies and practices that define the health data objects within an enterprise that will be commonly used by business services; it determines a standard terminology regarding health data objects that is defined in the business glossary.

informatics—Used in the present report as a generic term to refer to both biomedical informatics (the core discipline) and health informatics (its application in clinical care and public health). The field deals with data, information, and knowledge for scientific inquiry, problem solving, and decision making—motivated by efforts to improve human health.

information architecture—Descriptive term encompassing the structure, properties (e.g., formats), and behavior (e.g., flows) of the storage and management of information within a specific information system, with emphasis on information exchange among applications and processes.

information ecosystem—The information technology components and their interactions, automated and manual, required to build, develop, operate, and evolve one or perhaps multiple business functions; the term includes the people who design, build, maintain, and operate the systems.

information system families—Term used internally by the Centers for Medicare and Medicaid Services for groupings of information systems used to accomplish a specific business role; essentially synonymous with the present report’s use of “information ecosystem,” absent the focus on the humans who design, build, maintain, and operate the systems.

infrastructure architecture—Descriptive term encompassing the structure, properties, and behavior of the technology infrastructure (i.e., hardware and software) components of an information system; does not include information or applications in the information or applications architectures.

modernization, systems modernization—Refers to modest or evolutionary transitions of components and subcomponents of an information system.

process architecture—Descriptive term encompassing the structure, properties, and behavior of the processes in an information system.



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