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This study explored the user knowledge factors that hindered the design of new home healthcare devices and the interrelationships between the factors.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>The abovementioned factors were identified from analysing the project documents of thirty-eight carefully selected home healthcare devices produced by five manufacturers; followed by interviewing the thirty stakeholders playing key roles in developing the devices.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The design of the home healthcare devices was influenced by (1) the user insights utilised in formulating project strategies; (2) the sources of user information; (3) the execution of user research; and (4) the formulation of the manufacturers\u2019 principal innovation processes.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>The users\u2019 characteristics and needs were not sufficiently reflected in developing new home healthcare devices. One root cause was that the end-users were not perceived by the manufacturers as a key success factor in most cases, given that most of the devices were initiated following the public sector\u2019s requests. Actual or potential applications of this study include the facilitation of the appropriate application of human factors methods in developing new home healthcare devices and the improvement of the user performance of the end-devices.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12911-021-01464-3","type":"journal-article","created":{"date-parts":[[2021,5,21]],"date-time":"2021-05-21T09:04:25Z","timestamp":1621587865000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["User knowledge factors that hinder the design of new home healthcare devices: investigating thirty-eight devices and their manufacturers"],"prefix":"10.1186","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2549-3828","authenticated-orcid":false,"given":"Fan","family":"Yang","sequence":"first","affiliation":[]},{"given":"Abdullah","family":"Al Mahmud","sequence":"additional","affiliation":[]},{"given":"Tao","family":"Wang","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,5,21]]},"reference":[{"issue":"4","key":"1464_CR1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1145\/2790305","volume":"7","author":"A Al Mahmud","year":"2015","unstructured":"Al Mahmud A, Martens J-B. 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They were allowed to discontinue their participation in the study at any time without reprimand. At the start of the study, a written agreement concerning the purposes, time plan, data management approach, and obligations of different parties was initiated and signed by both the authors and the representatives of each of the companies. Before the beginning of each of the interviews, the authors explained the purpose and format of the activity to the participant and written consent to participate was obtained. This study was undertaken following the University of the Arts London's Code of Practice on Research Ethics and was submitted to and approved by the university. 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