Page History

The structure of the data models has grown as VIVO has developed. New models, new structures, and new means of accessing the data have been added as required by the growing code. The resulting data layer has grown more complex and more error-prone.

In release 1.5, VIVO added the RDFService interface, which has increased the flexibility of data sources, and promises to allow a more unified view of the knowledge base. However, the transition to RDFService is not complete, and so this adds another layer of complexity to the data issues. New structures have been added, but none removed.

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Accessing the models

There is an incredible variety of ways to access all of these models. Some of this variety is because the models are accessed in different ways for different purposes. Additional variety stems from the evolution of VIVO in which new mechanisms were introduced without taking the time and effort to phase out older mechanisms.

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