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