The Property QosPolicy stores name/value (string) pairs that can be used to configure certain parameters of Connext DDS that are not exposed through formal QoS policies. The Property QoS stores name/value pairs for an Entity. Both the name and value are strings.

Certain configurable parameters for Entities that do not have a formal DDS QoS definition may be configured via this QoS by using a pre-defined name and the desired setting in string form.