These are the Quality of Service (QoS) Policies parameters defined within the main Data Distribution Service (DDS) specification and some are defined within the DDS Security specification
a. Standard QoS Policies b. Vendor Extensions
The following list of DDS Quality of Service (QoS) are listed in the order they appear in the DDS Specification rather than in Alphabetical order. See DDS Spec 2.2.3 Supported QoS