Khalid Md Saifuddin

educational technology e-learning interaction design usability engineering ict in education human centered informatics higher education learning media and technologies bangladesh information architecture user experience design barriers ipad integration adoption employment teachers' development computer supported collaborative learning diffusion of innovations techno-anthropology science and technology studies elearning ict for development ict4d mobile m-learning socrative software clicker clicker phd digital divide rural bangladesh technical vocational education & training diffusion of innovation telecenter participatory action research domestication digital bangladesh smart classroom pecha kucha web 2.0 project-based learning health informatics expert system belief rule base asthma ehealth decision support system advantages virtual reality design edtech blended learning digital learning technology ai chatobot user satisfaction evaluation instrument generative ai genai statistics mathematics first-year students chatgpt claude microsoft copilot technology-enhanced learning assessment feedback chat tutor school global competencias jefferson conversation analysis aalborg university cscl digital literacy web 20 apps user experience child interaction design usability testing methods usability evaluation usability testing child-computer interaction mapping controversies actor-network theory nera 2017 learner experience design teaching