@@ -6,9 +6,9 @@ <h3>Context</h3>
66 Sensors are a major source of data available on the Web today.
77 However, searching, reusing, integrating, and interpreting sensor data requires more than just the result of an act of
88 sensing.
9- For proper interpretation of these values, knowledge of the feature of interest, such as a river, the observed
10- property, such as flow velocity, the sampling strategy, such as the specific locations and times at which the velocity
11- was measured, and a variety of other information are required.
9+ For proper interpretation of these values, knowledge of the feature of interest ( such as a river) , the observed
10+ property ( such as flow velocity) , the sampling strategy ( such as the specific locations and times at which the
11+ velocity was measured) , and a variety of other information are required.
1212</ p >
1313
1414< p >
@@ -20,9 +20,10 @@ <h3>Context</h3>
2020</ p >
2121
2222< p >
23- OGC's Sensor Web Enablement standards [[SWE]], [[SensorML]], [[OandM]], [[OMS]], [[STA]] provide
23+ OGC's Sensor Web Enablement [[SWE]] Standards — [[SensorML]], [[OandM]], [[OMS]], and [[STA]] — provide
2424 conceptual models and some encodings for the annotation of sensors and their observations.
25- [[OMS]] provides a comprehensive description of the characteristics of observations and samples.
25+ Observations, Measurements, and Samples ([[OMS]]) provides a comprehensive description of the characteristics of
26+ observations and samples.
2627 Integration and alignment of these with W3C Semantic Web technologies and Linked Data embeds this in a global and
2728 densely interconnected graph of data.
2829</ p >
@@ -38,7 +39,7 @@ <h3>Context</h3>
3839< h3 > Scope</ h3 >
3940
4041< p >
41- This recommendation defines the Semantic Sensor Network Ontology (< b > SSN</ b > ).
42+ This document is a W3C Recommendation and OGC Standard that defines the Semantic Sensor Network Ontology (< b > SSN</ b > ).
4243 SSN provides flexible but coherent perspectives for representing the entities, relations, and activities involved in
4344 actuation, observation, and sampling, including the procedures executed, and the systems that implement the
4445 procedures.
@@ -50,19 +51,19 @@ <h3>Scope</h3>
5051< p >
5152 A lightweight core module, known as < b > SOSA</ b > (Sensor, Observation, Sample, and Actuator) aims to broaden the
5253 audience and application areas that do not need the full capabilities of Semantic Web ontologies.
53- SOSA acts as minimal interoperability fall-back level, i.e., it defines terms (classes and properties) with which
54- data can be safely exchanged across all uses of SSN, its modules, and SOSA.
54+ SOSA acts as minimal interoperability fallback level, i.e., it defines terms (classes and properties) with which data
55+ can be safely exchanged across all uses of SSN, its modules, and SOSA.
5556 Basic subclass and subproperty relationships are included.
5657</ p >
5758
5859< p >
59- The full SSN Ontology has additional axiomatizations that may be useful in richer semantic web applications.
60+ The full SSN Ontology has additional axioms that may be useful in richer semantic web applications.
6061</ p >
6162
6263< h3 > 2023 Edition</ h3 >
6364
6465< p >
65- The previous edition of the SSN Ontology [[vocab-ssn-20171019]] harmonised prior work from OGC ([[OandM]]) and W3C
66+ The previous edition of the SSN Ontology [[vocab-ssn-20171019]] harmonized prior work from OGC ([[OandM]]) and W3C
6667 ([[SSNX]]).
6768 A new edition of the OGC/ISO standard [[iso-19156-2023]],[[[OMS]]] has updated [[OandM]] with a number of additional
6869 features arising from more than 10 years implementation experience.
@@ -99,14 +100,13 @@ <h3>2023 Edition</h3>
99100</ p >
100101< p >
101102 A < a href ="#changes "> change log</ a > is provided in an Annex of this document.
102- This describes the changes since the 2017 edition [[vocab-ssn-20171019]].
103+ The Annex describes the changes since the previous edition [[vocab-ssn-20171019]].
103104 Backward compatibility is maintained since descriptions of Actuations, Observations, Samplings, and Samples using the
104- SSN Ontology from the 2017 edition are compatible with the SSN Ontology provided by this 2023 Edition.
105+ SSN Ontology from the previous edition are compatible with the SSN Ontology provided by this 2023 Edition.
105106</ p >
106107< p class ="note ">
107108 A brief account of the < a href ="#Origins "> Origins of SSN and SOSA</ a > through various OGC and W3C initiatives is
108- provided
109- in an Appendix to this document.
109+ provided in an Appendix to this document.
110110</ p >
111111< p >
112112 The RDF files of the 2017 edition remain available at their permanent version IRI, which is obtained by substituting
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