Introduction Data and Service Integration Interpretation
6.7. Meta-information Approach
6.7.1 Introduction
The approach to describing meta-information within the SANY Architecture is based on the ORCHESTRA meta-information approach, as described in Annex A3 of RM-OA, 2007. According to this approach a conceptual meta-information model, which is a human understandable representation of the meta-information needed, has to be developed for a given purpose. Based on the user requirements see section 4.6, the following purposes for meta-information have been identified: - Data and Service Integration - Interpretation - Discovery - Monitoring - Authentication and authorisation - User profiling - Quality control management6.7.2 Data and Service Integration
For the purpose of service integration a service has to provide meta-information that describes the service. This meta-information comprises the structure of the implemented interfaces, the descriptions of the operations that can be performed including the descriptions of the parameter and return types, the location of a service instance e.g. its URL or additional characteristics of the service e.g. costs that enable service selection. For the purpose of data integration a service has to expose meta-information regarding the data it provides describing the structure, the location where can it be accessed, geo- spatial information, quality and precision information, measurement unit, measured phenomenon, and the measurement and processing e.g. filtering procedure, among other information.6.7.3 Interpretation
Meta-information is needed for the explanation and understanding of resources data and services. Resource descriptions shall contain explicit semantic descriptions or pointers to vocabularies dictionaries in order to ensure the self-description of services and data and their semantically correct integration. SANY D2.3.4 Specification of the Sensor Service Architecture V3 Doc.V3.1 Copyright © 2007-2009 SANY Consortium Page 89 of 2336.7.4 Discovery
Parts
» Specification of the Sensor Service Architecture (SensorSA)
» Executive Summary Specification of the Sensor Service Architecture (SensorSA)
» Intended Audience Abbreviations and acronyms
» General Remark Terms and Definitions
» Architectural Framework Specification of the Sensor Service Architecture (SensorSA)
» Relationship to the ORCHESTRA Architecture
» Requirements of GMES Enterprise Viewpoint
» Requirements of GEOSS Enterprise Viewpoint
» Requirements of Sensor Networks
» Overview Sensor Network User Requirements
» Data and Information User Requirements
» Data Quality Security User Requirements
» Processing and Fusion User Requirements
» Decision Support User Management
» Complex form of a Sensor Sensor System
» Overview Enterprise Viewpoint of a Sensor
» Engineering Viewpoint of a Sensor
» Service Viewpoint of a Sensor
» Information Viewpoint of a Sensor
» Overview Functional Domains Major Concepts of the Sensor Service Architecture
» Overview RequestReply Interaction Model
» Event-based Interaction Model Models of Interaction
» Event Definition Event-based Architectural Style
» Event Properties Event Model
» Event Verbosity Levels Event Model
» Form of Events Roles in Event Relationships
» Overview Event Processing Role Model
» Event Role Interfaces Event-Driven Processing System
» Resources Resources and their Identification
» URN Namespace for SANY Resources
» Naming principles Resources and their Identification
» Resource and Catalogue Types
» Sensor Planning Information Service Planning Functions
» Introduction Data and Service Integration Interpretation
» Discovery Monitoring Authentication and Authorisation
» The measurement process Uncertainty
» Access Control Service Architecture
» t Conceptual Building blocks for “Plug-and-Measure”
» Overview Information Model for Observations Measurements OM
» Information Model of the Sensor Observation Service
» Model for Subject Related Information Profiles and Identities
» SAML Security Assertion Markup Language
» XACML eXtensible Access Control Markup Language
» Event Information Model Information Viewpoint
» Resource representation Resource name
» Resource link Uniform Interface
» Introduction Relationship between Resources, Services and Features
» Overview Meta-information Schema for Discovery
» Meta-information Sections Related to Observation Discovery
» Overview Services of the OGC Sensor Web Enablement
» Sensor Observation Service Services of the OGC Sensor Web Enablement
» Web Notification Service Services of the OGC Sensor Web Enablement
» Overview Profile Management Service
» Policy Enforcement Service Access Control Services
» Overview Services of the Mediation, Processing and Application Domain
» Interfaces of WS-Base Notification Specification
» Properties of a Service Platform
» Specification of the SensorSA W3C Web Services Platform
» Specification of the SensorSA OGC Web Services Platform
» Specification of the SensorSA RESTful Web Services Platform
» Introduction Query Models Resource Discovery Policy
» Discovery of Observations Typical resource discovery policies
» Discovery of Procedures Typical resource discovery policies
» Event-based Harvesting Resource Discovery Policy
» Overview Policies for Sensor and Service Monitoring
» Policies for Sensor Planning
» “Non intrusive” at service level
» Delegate Anonymous Service Chain
» Patterns for Access Control in a Multi-Protocol Environment Usage of SAML
» Attachment of quality information
» Data flow optimization Providing alternative views to data
» Data pre-processing Multi-level sensor data storage
» Processing Chain Service Processing Chains .1 Introduction
» Approach Combining Earth Observation and In-situ data .1 Introduction
» Integration of Mobile Sensors
» Definition and Subscription of Events
» Sensor Plug In Plug-and-measure Support
» Sensor recognition and connection establishment Sensor Adapters
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