Thesis (Ph.D.) - Cairo University - Faculty of Graduate Studies for Statistical Research - Department of Information Systems and Technology

ELearning is gaining more importance, and becoming more popular nowadays.The outbreak of the COrona VIrus Disease (COVID-19) pandemicacross the globe has forced educational institutions to shut down to control the spread of the virus. This happening forcedthe spread out of eLearning or online learning, in which teaching professionals and students are virtually connected. It has become mandatory for all educational institutions like schools, colleges, and universities all around the world.eLearning Systems (eLS) have a special nature with special characteristics, such as the large number and diversity of users who could be geographically dispersed. eLS are in continuous need for improvements to meet their users{u2019} requirements. Hence requirements elicitation is of major importance. Requirements elicitationis an activity within the Requirements Engineering (RE) phase,the early stage in the software engineering process, which is responsible for deriving the system requirements and their evolution. Requirements engineers should pay attention to the special eLS requirements in the software development phases and specially in the requirements elicitation phase for better and fast satisfaction of stakeholders{u2019} needs. Currentrequirements elicitation techniques,e.g. interviews, questionnaire, and observation have many limitations and challengesand can{u2019}t satisfy the continuous and fast changing demand of eLearning users.Among those limitations are the inadequate involvement of users and stakeholders who are geographically dispersed. Crowdsourcing could offer a solution for that.It is defined as the use of the power of the crowd to achieve different tasks

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