Versions of P/FDM are available for:

Quintus Prolog, V.3.1.1 and V.3.1.3

SICStus Prolog, V.2.1 (#7+) and V.3.

Other requirements are specific to particular storage schemas:

Temporary storage: non-persistent storage based upon the Prolog clause base
- no extra requirements.

Hash storage: persistent storage based on extensible hash files
- requires GDBM extensible hash file library (V.1.7.3) (GNU software).

Relational storage: persistent storage based upon relational tables
- requires Sybase relational database (Sybase Corp.) and ProDBI (Prolog to Sybase Interface).

AMOS storage: high-performance in-memory storage using the AMOS DBMS
- requires AMOS.

All versions of P/FDM come with temporary storage, and the other storage schemas can be added in any combination, as required. If you are interested in obtaining a copy of P/FDM, please contact Professor Peter M.D. Gray.

If you require more information about P/FDM then please contact:

     The Object Database Group 
     Department of Computing Science 
     King's College 
     Aberdeen 
     Scotland 
     U.K.  AB9 2UE 
     Tel: +44 (0)1224 272296 
     Fax: +44 (0)1224 273422 
     E-Mail: pfdm@csd.abdn.ac.uk