The purpose of this paper is twofold. First, we generalize Kajii et al. (2007), and provide a condition under which for a game v, its Mobius inversion is equal to zero within the framework of the k-modularity of v for k = 2. This condition is more general than that in Kajii et al. (2007)....

Audit information security management system (ISMS) is an important element of a well-functioning ISM. As part of an ISMS audit, it is also necessary to determine the audit risk. Various methods exist and are developed for risk assessment, both in practical and theoretical level. These methods...