KaaS is described as being more related to Data as a Service, Content as a Service and other services which supply information to users, more than other "*aaS", such as Software as a Service which provide functionality however, the idea that a KaaS may analyse "context" at query time indicates that there is overlap between KaaS and *aaS such as Search as a Service and that perhaps not all KaaS responses are idempotent since their results depend on a context that might be time-dependent.