Basic HTML version of Foils prepared September 13 98

Foil 9 What/Why is a Framework?

From Seamless Interfaces, Multi-Tier Gateway Systems, Comments on Sandia DRM Design Analysis of ASCI DRM Design -- August 98. by Geoffrey C. Fox, Wojtek Furmanski
1 Java Calls (mainly Interfaces and not methods) to capabilities expressed in implementation neutral form
2 Drivers convert these general calls to vendor specific implementation of service
3 Java code can either be all on client (2-tier) or on client and middle tier (3 tier)
4 e.g. JDBC (Java Database Connectivity) is a universal interface to all relational databases
5 Adoption of this JDBC implies that vendor specific solutions are immediately less attractive
  • All vendors must however support JDBC because of importance of "seamless" interfaces!
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