Technical Details
The Client/Server architecture of HOLMES 2 is based on Microsoft Windows 2000 Professional or NT 4.0 workstations with UNIX servers running either Solaris or UnixWare. The system network communicates by using TCP/IP network protocols for LAN and WLAN communication.
Furthermore, HOLMES 2 uses a 2-tier approach for local database access and a 3-tier approach for remote database access, whereby remote database access is user-configurable from the front end. A freetext database allows users to ask unstructured questions and to present the results in order of relevance. Apart from that, a dual operation was adopted to increase the speed of the system. While searches themselves were tuned at the SQL (Structured Query Language) level, additional indexes on the RDBMS (Relational database management system) tables were deployed.
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