Analyzing Multi-tenant Cloud Services´ Accountability

Analyzing accountability violations and identifying the guilty party is a challenging process especially where multiple tenants are hosted by a single application instance. To handle this issue, we propose an approach for accountability violation analysis. It is based on service patterns as an abstract model to provide reusable and suitable description of the different characteristics of the analysis process, and an algorithm for pattern selection and instantiation. Furthermore, we propose a middleware layer for implementing our approach on the top of application level.