Kathy A. Johnson-Throop

Learn More
Many healthcare technology projects fail due to the lack of consideration of human issues, such as workflow, organizational change, and usability, during the design and implementation stages of a project's development process. Even when human issues are considered, the consideration is typically on designing better user interfaces. We argue that(More)
In this project, medical expert systems were designed to aid technicians, students and scientists in identifying various species of malarial parasite from blood smears. The rule based system was found to intelligently ask pertinent questions to accurately and efficiently identify the species of malarial parasite. The probabilistic system provided(More)
In this study, we developed a framework for the study of interruptions in distributed team environments from the perspectives of distributed cognition and activity theory. The core of this framework is the Action Coding System (ACS) that provides a language for the description, representation, categorization, and analysis of interruptions at the level of(More)
In this study we use the principles of distributed cognition and the methodology of human-centered distributed information design to analyze a complex distributed human-computer system, identify its problems, and generate design requirements and implementation specifications of a replacement prototype for effective organizational memory and knowledge(More)
Interruptions are often seen as distracting or sometimes devastating elements that need to be minimized or eliminated. However, interruptions are also used to increase efficiency, productivity, prevent errors, and even influence behavior. Existing theories and taxonomies of interruptions fail to account for the helpful aspects of interruptions. Therefore we(More)
In this study, we applied the methodology grounded in human-centered distributed cognition principles to the information flow analysis of a highly intensive, distributed and complex environment--the Biomedical Engineer (BME) console system at NASA Johnson Space Center. This system contains disparate human and artificial agents and artifacts. Users and tasks(More)
To improve health and reduce costs, we need to encourage patients to make better health care decisions. Since email is widely available, it may be useful for patient-directed interventions. However, we know little about how the contents of an email message can influence a health-related decision. We propose a model to understand how patients may process(More)
Clinical and translational research (CTR) is an essential part of a sustainable global health system. Informatics is now recognized as an important en-abler of CTR and informaticians are increasingly called upon to help CTR efforts. The US National Institutes of Health mandated biomedical informat-ics activity as part of its new national CTR grant(More)
In order to design effective and usable search interfaces it is essential to fully understand the characteristics of the users and the tasks they perform. In this paper we describe how to use human-centered approach to design a usable search interface. We first conducted user and task analyses of the application domain--Biomedical Engineers' log notes at(More)
Interruptions in healthcare are often seen as distracting elements that need to be minimized. However, if designed effectively , interruption can also be used to increase efficiency, productivity, prevent errors, and even influence behavior. We propose a model to engineer persuasive interruptions based on the context of the users, the tasks they are(More)
  • 1