Update preamble

Author: m-mohr

openapi.yaml

@@ -7,7 +7,12 @@ info:
 
     The OGC openEO API specification Community Standard defines an API in support of interoperable cloud-based processing of large Earth observation datasets.
 
-    We recommend reading the [glossary](https://openeo.org/documentation/1.0/glossary.html) before diving into the API specification. The glossary explains the most important terms used in the API specification.
+    We recommend reading the [glossary](https://openeo.org/documentation/1.0/glossary.html) before diving into this specification. The glossary explains the most important terms used in this specification.
+
+    The OGC openEO Community Standard consists of two parts:
+    
+    - openEO API, this API specification
+    - openEO Processes, a set of well-defined processes that is recommended to be implemented by back-end providers and is offered through their openEO API
 
     ## Abstract
 
@@ -19,25 +24,15 @@ info:
 
     ## Source of this Document
 
-    The majority of the content in this OGC document is a direct copy of the content contained at <https://github.com/Open-EO/openeo-api>. No normative changes have been made to the content. This OGC document does contain content not in source openEO API GitHub repository. Specifically, while derived from content on the openEO API repository, the chapters "Abstract", "Source of this Document", "Validity of Content", "Keywords", "Submitting Organizations", and "Supporting Organizations" in this document are not found on the openEO API repository.
-
-    ## Validity of Content
-    
-    The Submission Team has reviewed and certified that the snapshot content in this Community Standard is true and accurate. The snapshot for openEO API Version 1.2.0 was taken on December 1, 2024 from the openEO API Git Repository.
-
-    ## Keywords
-
-    The following are keywords to be used by search engines and document catalogues.
-
-    ogcdoc, OGC document, openEO, API, Earth observation, cloud, processing
+    The majority of the content in this OGC document is a direct copy of the content contained at <https://github.com/Open-EO/openeo-api>. No normative changes have been made to the content. This OGC document does contain content not in source openEO API GitHub repository. Specifically, while derived from content on the openEO API repository, the chapters "Abstract", "Source of this Document", "Submitting Organizations", and "Supporting Organizations" in this document are not found on the openEO API repository.
 
     ## Submitting Organizations
 
     The following organizations submitted this Document to the Open Geospatial Consortium (OGC):
 
     - openEO Project Steering Committee
 
-    The companies listed above have granted the Open Geospatial Consortium (OGC) a nonexclusive, royalty-free, paid up, worldwide license to copy and distribute this document and to modify this document and distribute copies of the modified version under a Apache License, Version 2.0 (see below).
+    The organizations listed above have granted the Open Geospatial Consortium (OGC) a nonexclusive, royalty-free, paid up, worldwide license to copy and distribute this document and to modify this document and distribute copies of the modified version under a Apache License, Version 2.0 (see below).
 
     ## Supporting Organizations