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OpenECOMP Policy is composed of several subcomponents: the Policy Administration Point (PAP)<<Link to PAP top page>>, which offers interfaces for policy creation, and two types of Policy Decision Point (PDP), each based on a specific rules technology. PDP-X<<TODO: Link to PDP-X top page>> is based on XACML technology and PDP-D<<TODO: Link to PDP-D top page>> is based on Drools technology. PDP-X is stateless and can be implemented using a resource pool of PDP-X servers. The number of servers can be grown to increase both capacity (horizontal scalability) and to increase availability. The PDP-D is stateful, as it utilizes Drools in its native, stateful way and transactions persist so long as the PDP-D is active. Persistent Drools sessions, state management, local and geo-redundancy have been deactivated for the initial release of OpenECOMP Policy and will be turned on when testing is completed.
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