Analysis of Content Filtering Software

The openness of web allows any user to easily get information anytime and anywhere. However, as well as the advantage of easy access to useful information, the web has disadvantages of providing users with harmful information indiscriminately. Some information, such as adult content, is not appropriate for children. To protect children from adult contents, many types of filtering software have been distributed. However, filtering software cannot entirely block adult contents, because it has some functional limitations. In this paper, we analyze several filtering software and discuss their limitations. Furthermore, we propose the essential functionalities for filtering software.