Integrating and checking access permissions in object oriented models

Encapsulation in object oriented models refers to the bundling of data with the methods that operate on that data, it is used to hide the values or state of a structured data objects and preventing unauthorized parties´ direct access to them. Access control mechanism in information systems is the process of mediating every request to resources and determining whether the request should be granted or denied. This paper proposes an approach allowing us to integrate access control mechanisms in object oriented paradigm. More detail, we define the access permissions between methods of classes in a UML model and providing a prototype to verify if the program implementation satisfied their access permission constraints.