The two databases are independent, and their interface is limited:
just the data structure that contains the keys is in common between
This improves the modularity of the design. As a consequence, for
- the part that describes the database structure is independent from
observation schemas (which are subject to refinements);
- the design of the two parts can be optimized for the specific
operations (replicas, RO vs. RW, distribution);
- the technologies used for the two parts are independent: one can
switch one from SQL to WML or LDAP without touching the other.
We envision two kinds of scenarios, and have designed the Perl APIs to
enable a simplified access in Perl.
next: Scenario 1
previous: Work done
up: JTB phone call support (12 May 2003)