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--- dido:99_annexes:annex-b-terms-and-definitions:i:internet_qos [2026/07/11 11:15] – ↷ Links adapted because of a move operation nick_dido
+++ dido:99_annexes:annex-b-terms-and-definitions:i:internet_qos [2026/08/22 18:01] (current) – created nick_dido
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-====== Quality of Service (QoS) ======
+====== Internet Quality of Service (Internet QoS) ======
 [[dido:99_annexes:annex-b-terms-and-definitions:start|Go up to Terms and Definitions]]
@@ Line 5: / Line 5: @@
 ===== Discussion =====
-Quality of Service (QoS) is a general term with different meanings at different architecture layers.
+Internet Quality of Service (Internet QoS) concerns the characteristics of packet delivery across an Internet Protocol (IP) network that affect the communication service experienced by communicating entities.
-In this document set, use the DDS-specific term for middleware quality-of-service policies and the Internet-specific term for network-level traffic treatment.
+Internet QoS is distinct from [[dido:99_annexes:annex-b-terms-and-definitions:d:dds_qos|DDS Quality of Service (DDS QoS)]]. Internet QoS concerns characteristics of network communication and packet delivery. DDS QoS concerns middleware policies governing data distribution behavior among DDS entities.
-DDS Quality of Service (DDS QoS) applies at the middleware and data-distribution layer. Internet Quality of Service (Internet QoS) applies at the packet-switched network layer. DDS QoS and Internet QoS remain distinct, but an implementation profile may align DDS QoS policies with Internet QoS mechanisms when the selected deployment environment supports that mapping.
+Internet QoS may involve [[dido:99_annexes:annex-b-terms-and-definitions:c:communication_characteristic|Communication Characteristics]] such as [[dido:99_annexes:annex-b-terms-and-definitions:l:latency|Latency]], packet loss, delay variation, throughput, or other characteristics of network service when those characteristics are relevant to the governing architecture, Configuration, or Test Definition.
+The term does not imply that every Internet QoS mechanism controls or guarantees every communication characteristic. Different networks, protocols, implementations, and administrative domains may provide different forms and levels of Quality of Service.
 ===== Definition =====
-//see [[dido:99_annexes:annex-b-terms-and-definitions:d:dds_quality_of_service_dds_qos|DDS Quality of Service (DDS QoS)]] and [[dido:99_annexes:annex-b-terms-and-definitions:i:internet_qos|Internet Quality of Service (Internet QoS)]]//
+//the quality of packet delivery provided by an Internet Protocol network as characterized by measurable or controlled network communication characteristics//
 ===== Source =====
-See [[dido:99_annexes:annex-b-terms-and-definitions:d:dds_quality_of_service_dds_qos|DDS Quality of Service (DDS QoS)]] and [[dido:99_annexes:annex-b-terms-and-definitions:i:internet_qos|Internet Quality of Service (Internet QoS)]].
+DIDO Solutions architectural definition derived from Internet Protocol networking and Quality of Service concepts used in distributed-system communication and testing.
 ===== Note =====
-DDS QoS is not Internet QoS. DDS QoS controls middleware-level data-distribution behaviour. Internet QoS controls network-level packet treatment. A DDS implementation may use Internet QoS mechanisms where the implementation, transport, operating system, and network infrastructure support that mapping.
+Internet QoS describes Quality of Service at the network communication layer.
+Do not use Internet QoS as a synonym for [[dido:99_annexes:annex-b-terms-and-definitions:d:dds_qos|DDS Quality of Service (DDS QoS)]]. DDS QoS operates at the data-distribution middleware layer and may interact with, but does not replace, Internet QoS.
+Specific Internet QoS characteristics become normative only when identified by an applicable requirement, [[dido:99_annexes:annex-b-terms-and-definitions:c:configuration|Configuration]], or [[dido:99_annexes:annex-b-terms-and-definitions:t:test_definition|Test Definition]].
 ===== Example =====
-For DDS implementation mappings, use [[dido:99_annexes:annex-b-terms-and-definitions:d:dds_quality_of_service_dds_qos|DDS Quality of Service (DDS QoS)]]. For packet classification, marking, prioritisation, shaping, policing, queuing, scheduling, latency, jitter, packet loss, congestion, bandwidth allocation, or delivery priority, use [[dido:99_annexes:annex-b-terms-and-definitions:i:internet_qos|Internet Quality of Service (Internet QoS)]].
+A Test Definition may require a Virtual Network to reproduce a specified network Latency while DDS independently applies middleware Quality of Service policies governing delivery reliability or data availability.
+----
+<WRAP centeralign>
+© 2026 Dido Solutions, Inc. and Jackrabbit Consulting, Inc.
+</WRAP>