Using a Correlation Equation to ensure Stability between Personalization and Security in Composing Web Services

Because of the increasing complexity, openness and extensibility of services-based Information Systems (IS), Web Services Composition (WSC) became a main challenge that interests many researchers. This interest is growing with the apparition of Cloud applications that are being increasingly available and diversified trying to cover a multitude of services to satisfy the unlimited end-user requirements. In front of applications diversity, it become more difficult for end-user to find the most adequate service that perfectly meet their needs especially when considering personalization in WSC process. This difficulty increases when dealing with security constraints, especially in cloud environment where services are openly accessible and widely exposed to highly potential risks. In such context, WSC must be made in a careful way and personalization should proactively take into account protection measures against all eventual threats. Otherwise, integrating both personalization and security in WSC may result in an instable system. Based on this conviction, finding the correlation between these concepts remains an important issue. Hence, the key challenge of this paper is to study the stability system's through a correlation equation between the precited concepts. To highlight the efficiency of our proposed equation, we will present an E-Learning application that was used during the COVID-19 pandemic.