Commercial relational database systems today provide only
limited temporal support.  To address the needs of applications
requiring rich temporal data and queries, we have built TIP
(Temporal Information Processor), a temporal extension to the
Informix database system based on its DataBlade technology.  Our TIP
DataBlade extends Informix with a rich set of datatypes and routines
that facilitate temporal modeling and querying.  TIP provides both C
and Java libraries for client applications to access a TIP-enabled
database, and provides end-users with a GUI interface for querying
and browsing temporal data.