[comp.databases] DB DESIGN/PERFORMANCE TOOLS

ecirello@scotty.dpl.scg.hac.com (02/01/91)

 I AM LOOKING FOR *TWO* TYPES OF DATABASE DESIGN TOOLS. 
 
  1) DATABASE DESIGN TOOL WHERE THE USER SPECIFIES :
      A) MODEL OF THE DATABASE
        (I.E. ENTITY/RELATIONSHIP OR ANY DATA DRIVEN METHODOLOGY)
     AND
      B) DATABASE THREADS ( TRANSACTIONS ) 

  2) IS THERE ANYTHING CURRENTLY AVILABLE OR BEING DEVELOPED THAT CAN
   ****PREDICT THE PERFORMANCE****
     OF A DATABASE BEFORE ACTUALLY IMPLEMENTING IT ? 
     FOR:
     A) CENTRALIZED DATABASES ?
     B) DISTRIBUTED DATABASES ? 
     C) HETEROGENEOUS, DISTRUBUTED DATABASES ?

 PLEASE SEND RESPONSES (IF POSSIBLE) DIRECTLY TO ME.  I WILL
 SUMMARIZE AND POST THE RESULTs.

     THANKS FOR YOUR HELP,

	  BETH CIRELLO