درخت حوزه‌های تخصصی

The aim of this study was to identify the challenges of the business model of small and medium enterprises in the path of digital transformation during the Covid 19 epidemic. The research is applied in terms of purpose and descriptive-survey in terms of method. For this purpose, first, using the literature review, the challenges of the business model in the path of digital evolution during the Covet 19 epidemic have been identified, then in order to sift and consensus of the components extracted from the literature, the Delphi method was used in two rounds. The Delphi panel consisted of 30 experts in the field of research who were selected by purposive sampling. In the next step, in order to ensure the factor structure and validity of the structures, and to fit the model using the field method and distribution of questionnaires, a survey of senior managers of small and medium companies in Tehran was conducted. The sample size was determined using the sample size method required for modeling structural equations, 200 people, and finally 162 questionnaires were selected using a simple random method. Smart PLS software was used to analyze the data. Findings indicate 23 sub-components in 6 main components of change challenges, market challenges, financial, organizational, individual and environmental. The results also showed that the factor of "lack of necessary infrastructure" has the highest priority,"lack of government support during the Pandemic" and "lack of intangible resources(experience,knowledge,flexible manpower) for digital transformation" are in the next ranks.

During the COVID-19 pandemic, the usage of e-learning systems became the main challenge for many universities. E-learning has risen as cutting-edge method for promoting learning delivery. To ensure productive use, it is important to continue using e-learning. Numerous studies have shown that continued usage by the user is the indicator of success in e-learning, and in recent years, research on continued use of e-learning is being explored at a higher level than before. However, to date, there have been no attempts to systematically analyse these studies in order to provide researchers and practitioners with a picture of the current state of continued usage of e-learning. The aim of this research is to provide an in-depth look at the theory of continued use information systems in e-learning context. In this study, we used a systematic review approach to collect, evaluate, and synthesize data on the accuracy and value of previous articles published in digital databases between 2009 and 2019 that were based on this research area. To include all relevant research papers that were written during this period time, we used a Systematic Literature Review (SLR) approach to collect and review studies by following a predefined review process that included both automated and manual search strategies. We listed 87 primary studies from the review study that presented research on the continued use of e-learning. These studies were analysed using a comprehensive mapping method that collected relevant information to address a series of research questions. We summarized and analysed the published articles, which covered a wide range of research subjects, including the majority of factors that affect e-learning use. While research on the continued use of e-learning is growing and providing a promising new field of research, the systematic review found that a clearer understanding of the environment and path is not well reported. This research will contribute to a better understanding of the factors that affect e-learning use over time