TheBESdetectorhasoperatedforabout12years,andtheBESofflinedataanalysisenvironmentalsohasbeendevelopedandupgradedalongwithdevelopmentsoftheBEShardwareandsoftware.TheBESⅢsoftwaresystemwilloperateformanyyears.Thustheyshouldmeetdevelopmentsofthenewtechnologyinsoftware,Itshouldbehighlyflexible,Powerful,stableandeasyformaintenance.Andfollowingpointsshouldbetakenintoaccount:1)TobenefitthecollaborationandmakebetterexchangeswiththeinternationalHEPexperimentsthissystemshoulebesetupbyadoptingorreferringthenewesttechnologyinthesoftwarefromadvancedexperimentsintheworld.2).ItshouldsupporthundredsoftheexistingBESsoftwarepackagesandserveforbotholdexpertswhofamiliarwithBESIIsoftwareandcomputingenvironmentandnewmemberswhoisgoingtobenefitfromthenewsystem.3).ThemostBESIIexistingpackageswillbemodifiedorre-designedaccordingtothehardwarechanges.
