Table 1
GeRDI pilot communities.
| Research area | Research community |
|---|---|
| Social sciences and Economics | - Socio-Economic Panel (SOEP) |
| Life sciences and Humanities | - Microscopy and Bio-informatics - Digital Humanities - National Center for Tumor Diseases |
| Marine sciences | - Environmental, Resource and Ecological Economics - Paleoceanography |
| Environmental sciences | - Alpine Environment Data Analysis Center - Hydrology and River Basin Management - UN International Strategy for Disaster Reduction |

Figure 1
GeRDI Metadata Schema, a conceptual diagram.
Table 2
GeRDI generic extension metadata set.
| ID | Property | Obl. | Occ. | Definition |
|---|---|---|---|---|
| 1 | WebLink | R | 0–n | A string that identifies a resource in GeRDI, via a (name, URI) pair. |
| 1.1 | webLinkName | O | 0–1 | String value denoting the name of the link (sth that the user would see during browsing). |
| 1.2 | webLinkURI | M | 1 | The (access) URI of the resource. |
| 1.3 | webLinkType | R | 0–1 | The type fo the weblink. |
| 2 | RepositoryIdentifier | M | 1 | A unique human readable string that identifies the source repository. |
| 3 | ResearchData | M | 1–n | A downloadable file from the source repository. |
| 3.1 | researchDataIdentifier | M | 1 | A universal unique identifier for the file. |
| 3.2 | researchDataURL | M | 1 | File download URL. |
| 3.3 | researchDataLabel | R | 0–1 | A human readable name of the file. |
| 3.4 | researchDataType | R | 0–1 | The file type of the research data. |
| 4 | ResearchDiscipline | R | 1–n | The research discipline (s) of the data set. |

Figure 2
Mapping of GeRDI services to RD life Cycle.

Figure 3
GeRDI services: A Self-Contained Systems Architecture view.

Figure 4
GeRDI services example: Search and Bookmark.
