We have implemented a pair of database projects, one serving cortical elect
rophysiology and the other invertebrate neurones and recordings. The design
for each combines aspects of two proven schemes for information interchang
e. The journal article metaphor determined the type, scope, organization an
d quantity of data to comprise each submission. Sequence databases encourag
ed intuitive tools for data viewing, capture, and direct submission by auth
ors. Neurophysiology required transcending these models with new datatypes.
Time-series, histogram and bivariate datatypes, including illustration-lik
e wrappers, were selected by their utility to the community of investigator
s. As interpretation of neurophysiological recordings depends on context su
pplied by metadata attributes, searches are via visual interfaces to sets o
f controlled-vocabulary metadata trees. Neurones, for example, can be speci
fied by metadata describing functional and anatomical characteristics. Perm
anence is advanced by data model and data formats largely independent of co
ntemporary technology or implementation, including Java and the XML standar
d. All user tools, including dynamic data viewers that serve as a virtual o
scilloscope, are Java-based, free, multiplatform, and distributed by our ap
plication servers to any contemporary networked computer. Copyright is reta
ined by submitters; viewer displays are dynamic and do not violate copyrigh
t of related journal figures. Panels of neurophysiologists view and test sc
hemas and tools, enhancing community support.