  Event shape and charged particle inclusive distributions determined from 750
000 hadronic Z events measured with the DELPHI detector at LEP are presented.
The statistical and systematic precision of this data allows for a decisive
confrontation with Monte Carlo models of the hadronization process and a better
understanding of the structure of the Z hadronic final state.
  Improved tunings of the JETSET, ARIADNE and HERWIG parton shower models and
the JETSET matrix element model are obtained by fitting the models to
identified particle distributions from all LEP experiments and the DELPHI data
presented. The description of the data distributions by the models is
critically reviewed with special importance attributed to identified particles.
