Searching for data

Users must be able to:

• Locate different types of data
• Locate different datum within sets of data
• `Converse' with the location mechanism

Searching for data means much more than making a request to a relational database and processing the resultant data. Users must be able to engage in a back-and-forth conversation to find interesting collections of data. Furthermore, they must be able to use these data in new ways.

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