Architecture V, as shown in Figure 5, extends
state-oriented self-healing database systems to service
oriented self-healing database systems. In particular, the
QoIA Reservation Console enables users to subscribe for
QoIA services. The Observer monitors (and measures) the
trustworthiness or healthiness of the database state. The
Trustworthiness Assessor uses the observed healthiness
measurements to infer the “real” healthiness of the database
state. The QoIA Adaptor enhances the Architecture IV
Adaptor with the ability to map QoIA requirements
associated with services to a set of state trustworthiness