(PDF) Human Factors in Systems Design
Added on 2021-06-17
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HUMAN FACTORS IN SYSTEMS DESIGNBy(Name) (Course)(Professor’s Name)(Institution)(State) (Date)
Interactive systemsInteractive systems are a collection of computer hardware and software entities that enable human interaction through a user interface that enable input of instructions and output of analysed or stored information. MEDIGATE interactive system and its users. As stated by Dix (2009), MEDIGATE interactive system is analysed and evaluated. MEDIGATE is an interactive software able to run on Macintosh and Windows operating system that allows input of data and visualize textual and graphic representation of the data. The program utilizes the interface design of modern workstations to allow user interactivity to input and visualize data. The interface includes input devices such as text fields, sizable desktop windows, menus, icons and graphic designed objects that allow recording, analysis and storage of medical data. MEDIGATE interactive system is used by the medical professionals. The program acts as an electronic recording tool that allows the replacement of the old and traditional manual file records. The user population include medical employees in the different medical departments responsible for the input and utilization of patient data such as the outpatient department, in-patient department, laboratory and the pharmacy. The employees include clinical officers, nurses, medical physicians, laboratory technicians, imaging consultants and pharmacists, Reisner (2011). It is reasonable to make the assumptions that the employees using the MEDIGATE software program have the basic knowledge of computing. The knowledge include ability to work withtext input computer peripheral devices such as keyboards, ability to use computer mouse and training on the basic computer packages such as Office, Excel and Spreadsheets. The MEDIGATE use cases. The MEDIGATE offers primarily a tool that is able to compliment if not replace the old and traditional technique of records keeping. According to Chin(2011), MEDIGATE is a wide tool used across the health care setting. Inn this evaluation, focused is drawn to the usability of the program tool by the medical physicianin recording and computer assisted medical decisions through input of patient’s data through
a graphical simulation comprising of sketchy images and texts of the physical findings of the patient’s data. The program provides a complicated user interface that enables the physician to interact with to input the data including regions of the body such as tenderness, cellulitis, distention and, masses. Data records including sketchy images of abdominal pathologies were evaluated which is partof the system functionality. The evaluation methodology. The usability and acceptability of MEDIGATE by the medical physicians was apprised by determining the adaptability to the user needs and problems and challenges encountered by the users during the procedure, Whitefield, Wilson & Dowell (2013).The following assessment tools were considered during the evaluation process of the MEDIGATE system: What were the physician’s data needs?What was the quality of data from the physical examinations that was input into the program?Was the data input into the MEDIGATE aid in the clinical diagnosis and management?Was the system usability easy to learn?What was the process of data input into the system?What were the challenges encountered during the procedure?Can the system be used in emergency situations?The IMPACT (Intention, Metrics, People, Activities, Context and Technology) model was utilized to evaluate the user easy and performance of the MEDIGATE tool. The role of the user in the evaluation process was to carry out the specified tasks recommended by the system developer to enable a fluid functionality. The controller, the interviewer, strongly in control of the procedure to ensure that the steps designed in the user manual of the program are adhered to.
In reference to Yoder (2012), the study and evaluation was carried in a clinical set up of the medical ward using a predetermined patient, presented with abdominal symptoms of a mass in the right upper quadrant associated with tenderness in the region, who was selected by the interviewer and had that consented to be used in the evaluation process for maximum of 20 minutes. The evaluation process was carried out during the major ward rounds, a time when most of the clinical procedures are carried out. The type of data used in the evaluation process was the physician’s opinion of what type of data would be more useful in making clinical diagnosis and management of the patient’s condition. The applied approach was based on the experimentation outlined.The results of the system performance were determined through analysis of the flexibility, ease of use, duration for use and the errors reported during the whole procedure. The sure tasks evaluated during the procedure were. Patient’s data input into the MEDIGATE system. The data included a summary of the patient’s biodata, the chief complaint, important positives and negatives, important past medical history and review of systems. Copy and paste or duplication of the physical findings on a pre-determined human anatomy sketch. The physicians click on the abdomen sketch on the MEDIGATE system and using a mouse, indicates the exact position of the clinical findings. The procedure was completed intoeither of two practises; a computer aided drawing or a drag and drop mechanism. Retrieval of data was evaluated through direct observation of the graphical designs saved during the prior two procedures. The following instructions were given to the physicians using the MEDIGATE system:It is the system that is being evaluated, not them. A running commentary will be utilized during the evaluation with a set of useful prompt questions employed. The evaluation procedure;1.A draft lift of the tasks to be performed was prepared and handed to the physician.
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