There is a discrete set of documents, images, photographs or other material that are currently unstructured, but that could be turned into a structured dataset
The work to compile and maintain a database that would be useful to a community of organisation is costly and time-intensive
There is a need for a Communal Database to support a diverse set of communities. But outside a common core set of data, there are different and evolving needs.
There are gaps in our understanding of some aspect of the world which new data can help to address.
Compiling an up-to-date, useful directory of companies, services, events or other records requires the input of multiple organisations.