Table 2. Data sharing issues and models.
Shared Repository | Federation | Mediation | Grid | Linked Data | Common Model | |
---|---|---|---|---|---|---|
Data ownership Data provider sensitivity to data distributed externally, and control of data. |
- | - | - | + | ||
Global scope Ability to integrate any relevant dataset into network. |
- | + | + | + | + | |
Dynamic nature The network is dynamic, allowing for any relevant data provider to join, as opposed to a consortium of fixed members. |
- | - | + | + | ||
Data structure The data in the Alzheimer's disease domain is highly structured, and that must be preserved in sharing. |
+ | + | + | + | + | |
Harmonization Bring disparate datasets to a unified representation. |
+ | + | + | + | + | + |