Health Level Seven (HL7) Standards: operating in the healthcare arena
a framework (and related standards) for the exchange, integration, sharing, and retrieval of electronic health information. These standards define how information is package and communicated from one party to another, setting the language, structure and data types required for seamless integration between systems. HL7 standards support clinical practice and the management, delivery, and evaluation of health services, and are recognized as the most commonly used in the world.
It states that its mission is to provide standards for interoperability that improve care delivery, optimize workflow, reduce ambiguity, and enhance knowledge transfer among all stakeholders, including healthcare providers, government agencies, the vendor community, fellow SDOs (standards-developing organizations), and patients.
The “Level Seven” in HL7’s name refers to the
highest level of the International Standards Organization’s (ISO) communications model for Open Systems Interconnection (OSI) application level. The application level addresses definition of the data to be exchanged, the timing of the interchange, and the communication of certain errors to the application. The seventh level supports such functions as security checks, participant identification, availability checks, exchange mechanism negotiations and, most importantly, data exchange structuring.
(retrieved from http://www.hl7.org)
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Usability studies can be used to support IT in a number of ways. Which of the following are reasons to complete these studies in a health care setting? –assesses the adequacy of a design or redesign early in the systems life cycle, helps determine or clarify users’ requirements determination
Usability: the ease with which people can use an interface to achieve a particular goal. issue of human performance during computer interactions for specific tasks within a particular context. which deals with specific issues of human performance during computer interactions for specific tasks within a particular context. usability issues address the efficiency and effectiveness of an application. For example:
- the ease of learning an application
- the ease of using an application
- satisfaction with using
- efficiency of use
- error tolerance
- fit of the system to the task
- the speed of task completion and errors that occurred during application use when determining which system or application would be best used on a nursing unit.
- Heuristic Evaluation = discount usability evaluation method: to detect problems early in the design process, when they can be most easily and economically corrected.
- Formal usability test: use either experimental or observational studies of actual users using the interface to accomplish real-world tasks.
Ergonomics: the design and implementation of equipment, tools, and machines related to human safety, comfort, and convenience. commonly refers to attributes of physical equipment or to principles of arrangement of equipment in the work environment.
Continue reading “Nursing Informatics Terminology Self Study: usability, ergonomics, change theory”