======== Appendix B: Quality of Service (QoS) Parameters ========

[[ddsf:public:guidebook:06_append:start| Return to Appendices]]


These are the [[ddsf:public:guidebook:06_append:glossary:q:quality_of_service_qos_policies]] parameters defined within the main [[ddsf:public:guidebook:06_append:glossary:d:data_distribution_service_dds]] specification and some are defined within the [[ddsf:public:guidebook:06_append:01_family_of_standards:01_core:dds_security| DDS Security]] specification

a.	Standard QoS Policies
b.	Vendor Extensions

===== DDS Specification QoS =====
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 [[https://www.omg.org/spec/DDS/1.4/PDF | DDS Spec 2.2.3 Supported QoS]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:user_data]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:topic_data]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:group_data]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:durability]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:durability_service]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:presentation]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:deadline]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:latency_budget]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:ownership]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:ownership_strength]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:liveliness]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:time_based_filter]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:partition]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:reliability]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:transport_priority]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:lifespan]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:destination_order]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:history]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:resource_linits]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:entity_factory]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:writer_data_lifecycle]]
  - [[ddsf:public:guidebook:06_append:02_quality_of_service:reader_data_lifecycle]]

/*===== DDS Security QoS =====
<todo>Need to get the list</todo>

===== Other DDS QoS parameters =====
In addition to these standardized DDS QoS parameters, each vendor can offer QoS which are specific to their product. See the individual vendors for the details about these additional QoS parameters.*/


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