We have developed an OWL ontology [31] to capture the
concepts of cloud security, threats and compliance controls. In
this section we briefly describe this ontology; but it is outside
the scope of this paper. The main classes of the ontology are
cloud computing security (further divided into cloud security
compliance models, cloud security controls and threats to cloud
security) and cloud computing providers.
Figure 1 describes the class cloud security compliances and its
relation with security control class. The types of cloud security
compliances, explained in section III, are represented in our
ontology. The subclasses of the Cloud security control class are