A Security-Oriented Extension of the Object Model for the Development of an Information System

The meaning of computer system security varies, depending on the assets that the security mechanism is designed to protect. The main objective of all security mechanisms is that a system’s assets perform their tasks according to authorized user expectations, while maintaining the confidentiality, integrity, and availability of information (CIA). The security aspects can be categorized, based on related assets, into four types: hardware security, software security, network security, and information system security.