Security model development environment

Introduces the Security Model Development Environment (SMDE); a suite of prototype tools for the development of secure systems. The development of the SMDE was performed under contract for the Rome Air Development Center and Strategic Defense Initiative. The SMDE is based on a methodology for the construction and analysis of security models, which supports the model developer via an iterative model design process. The methodology supports a concept of automatic rule base generation which required the development of the prototype tools and the Common Notation for the expression of security models. The prototype tools are the Model Translator Tool (MTT) and the Testbed. The MTT automatically generates a rule base from a security model and the Testbed simulates the activity of a system using a model´s rule base. The methodology, together with an extended model description, provides support for the automated tools and the impact of the methodology on security model development is summarized. The SMDE provides an iterative modeling approach that increases the productivity of model designers, simultaneously causing the model development process to be more accessible