Abstract
In this paper, we focus on elements for information system and its security, and try to build structure models to visualize interrelations among elements under consideration. Before this work, the structure model for security components (CIARA) was obtained by using relations of 3 by 3 magic square and Platonic solids.
Following CIARA, the structure model for system metrics (RASIS) is obtained through the topological relations between system metrics (RASIS) and security components (CIARA). And by using a Möbius strip, a combination of RASIS and CIARA is led, too. Furthermore, a simple method to create the combining of structure models is illustrated. The combination makes it possible to propose "new RAS" and "new CIA". In addition, it is suggested from our observations that the structure models are rational.
