Usage Decision Model for Online Social Network

Online social networks provide user relationships and increase information and resource sharing between a large amount of users. Communications by social networks overtake the emails, and it poses enormous security challenges in this platform. Numerous privacy leakages arise while unauthorized users can access information at anywhere and anytime. This paper presents Usage Decision Online Social Network (UDOSN) model to protect private data from illegal access before and during the usage in online social networks. The authentication function controls the access requests before the usage, and right requests are done by the authorization function during the usage. Presented scenarios show the process of both functions. Moreover, Usage Decision Online Social Network model is reusable and environment-independent, and it is defined for social network with formal descriptions.