Harry Mangalam wrote: <snip> > > How are you currently representing this problem at the Field Museum? > Especially the dynamic nature of the problem? > Keep in mind that I'm not here working on databases... that I've only become peripherally interested and involved because these are problems that are not being addressed well by computing services. Being at a Museum has huge drawbacks - we don't have easy access to experts in the fields who could help put together theory and applications solve some of these informational issues. That said, our databases are separate - a big problem in and of itself. Our databases are relational databases which clearly do not easily address the problem of changing identifiers (or any other characteristic), especially when temp workers are hired to enter data and make on-the-fly corrections without consulting the curator. e.g., a pot that was recorded in field notes as being collected in Rhodesia is entered into the database as being collected from the modern political equivalent; bad move as the listing of location as Rhodesia is an important time stamp as to when the pot was collected. Time stamps on databases are clearly of utmost importance. I don't know how these relational databases are currently keeping track of species name (or political country) changes; I would guess that some kind of "memo" field might be in use. Currently, anybody conducting a historical biodiversity survey of our collections ("What organisms are in your collection from the Pacific Northwest?") has to consult over half a dozen different databases, all relational, but using different products. Most have limited web-accessibility. On the molecular end, we've got individuals working on particular genes for different groups of species. They do their alignment (by eye only - *cringe*), then plunk the data into NEXUS format for use in Paup*. So they have bunches of different text files floating around their hard drives. A really useful thing would be a database of aligned genes for the different groups (e.g., the ribosomal database project)... but how would one keep the alignment up-to-date? What would be the best underlying structure for such data? Lots of problems, no clear solutions... -jennifer -------------------------- J. Steinbachs, PhD Computational Biologist Dept of Botany The Field Museum Chicago, IL 60605-2496 office: 312-665-7810 fax: 312-665-7158 --------------------------