e-Habitat Use Scenario

The scenario we propose consists in integrating the e-Habitat model (currently published as a Web Processing Service of the DOPA) with the advanced (semantic enabled) broker framework of EuroGEOSS infrastructure. In particular, this will allow to select the inputs of the e-Habitat model in a flexible way – that is, discovering and retrieving the thematic layers through standard services for geospatial data sharing. Moreover, the repetitive process of simulating various habitats allows for contrasting species occurrences with various combinations of thematic maps/ecological parameters. This approach permits the identification of the main factors to be considered when defining ecological niches.



Step

Description

Trans. Tech Use Case

Specialized Use Case

01

Scientist accesses the Client Application through the GEO Portal

 

 

01.1

Scientist accesses the GEO Portal and searches for the Client Application by appropriate keyword

UC D – Client Search of Metadata

 

01.2

Scientist selects Client Application

UC E – Presentation of Reachable Services & Alerts

 

01.3

Scientist accesses Client Application

UC F – Interact with Services

 

02

Discovery and selection of species of interest

 

 

02.1

Scientist uses Client Application to submit a query to the augmented search component in order to discover the presence datasets for a given species

UC - Semantics Enabled Search

 

 

02.1.1

augmented search component submits a query to the ontology query engine and extracts 0..N terms to be inserted into the geospatial query

UC – Ontology Engine Search

 

02.1.2

augmented search component generates one or more geospatial queries based on user selection as geospatial constraints and as keywords the related terms from previous step and submits the queries to the  EuroGEOSS broker

UC D – Client Search of Metadata

 

02.2

The  EuroGEOSS broker mediates the query request distributing it to its federated services

 

 

02.3

Scientist uses the Client Application to select one or more presence datasets among the ones returned by the query

UC E – Presentation of Reachable Services & Alerts

 

02.4

The Client Application submits an access request to the EuroGEOSS broker in order to get the selected presence datasets

UC F – Interact with Services

 

02.5

The accessed presence datasets are displayed on the Client Application

UC E – Presentation of Reachable Services & Alerts

 

03

Selection of Origin Area

 

 

03.1

According to species distribution, the scientist selects the Origin Area

 

 

04

Selection of area of interest

 

 

04.1

Scientist uses Client Application to select the Area Of Interest (AOI), that is the area for which the habitat will be calculated

 

 

05

Discovery and selection of Thematic Layers

 

 

05.1

Scientist chooses if using the default nine thematic layers, in this case jump to step n. 06

 

 

05.2

Scientist uses Client Application to submit a query to the augmented search component in order to discover thematic layers on the selected AOI and related to the species of interest

UC - Semantics Enabled Search

 

 

05.2.1

augmented search component submits a query to the ontology query engine and extracts 0..N terms to be inserted into the geospatial query

UC – Ontology Engine Search

 

05.2.2

augmented search component generates one or more geospatial queries based on user selection as geospatial constraints and as keywords the related terms from previous step and submits the queries to the  EuroGEOSS broker

UC D – Client Search of Metadata

 

05.3

The  EuroGEOSS broker mediates the query request distributing it to its federated services

 

 

05.4

Scientist uses the Client Application to select one or more thematic layers among the ones returned by the query

UC E – Presentation of Reachable Services & Alerts

 

06

Execution of e-Habitat

 

 

06.1

Client Application collects and ingests the selected datasets into the e-Habitat WPS Server

 

 

06.2

Scientist uses Client Application to select appropriate values of the e-Habitat model parameters

 

 

06.3

Client Application sends a request to WPS Server for executing the e-Habitat model

UC F – Interact with Services

WPS execute request

06.3

When the computation ends, the WPS Server sends a CSW-T transaction request to the EuroGEOSS broker for publishing the generated output (a probability map) on the broker itself

 

 

07

Output Display

 

 

07.1

The Client Application retrieves the output map through the broker

 UC F – Interact with Services

 

07.2

The Client Application displays the e-Habitat result for evaluation/validation by the scientist

  UC G – Exploit Data Visually and Analytically

 








Legend:
AIP-2 Services in blue
AIP-2 Products in red
AIP-2 Actors in orange
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