<span id="docs-internal-guid-b7163134-7fff-29de-9179-24e242f1239b"><span>Limited public health services in remote areas, where the lack of transportation infrastructure, facilities, communication facilities and minimal medical personnel, especially for areas with underdeveloped, foremost, and regular (3T) status. The limitation of medical personnel is one of the factors for the high mortality rate of heart disease. On the other hand, the development of information technology, especially in the field of computing, is very fast in the era of the industrial revolution 4.0, but not yet used optimally, especially in the health sector. This study aims to develop a system or software that can replace a doctor for the process of identifying heart defects based on an expert system. Expert system developed with the certainty factor with multiple rule approach. System testing is carried out from the results of the system validity with experts, so that the system test results produce a certainty factor value for a normal heart of 0.95 and an accuracy level of 95%, while the certainty factor (CF) value for an abnormal heart is 0.99 and produces an accuracy rate of 99%.</span></span><br /><div style="mso-element: comment-list;"><div style="mso-element: comment;"><div id="_com_1" class="msocomtxt"><!--[if !supportAnnotations]--></div><!--[endif]--></div></div>
A questionnaire is one method that is very widely used for social research and is an essential stage in an information system survey in this case the instrument adopted from previous research. Research in the field of information systems today is highly developed by the context ranging from industry, education, and other areas that are not limited. The objectives of this study were to assess the nature of the psychometric properties of users, in this case, is the level of readiness of users in adopting information technology in SMEs. Respondents were chosen randomly and were active computer users in SMEs, and the questions and statements given could be responded to and understood well so that the perceptions between researchers and respondents were the same. The population used is by taking several SMEs industries in Jakarta. The survey was conducted by interviewing and distributing questionnaires to employees at SMEs. Data processing is done using partial least squares structural equation modeling (PLS-SEM). The results obtained are 13 of the 70 questions were recommended to be rejected. Besides, the findings can be used by other parties in terms of testing a questionnaire as a reference for consideration, and the confirmation results can be used as a reference in revising the questionnaire questions.
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