The burst growth of Internet and  Intranets  during  last
years   made  up  the  new  worldwide  information  area  with
inexhaustible resources which are accessible from  almost  any
PC.
     The problems of simulation  of  complex  technical  and
construction  systems are still topical,  as they help to find
out "bottle  necks",  to  compare  different  realizations  of
complicated technical projects as early as the stage of system
projecting begins,  and to train the personal early before the
whole system is built.
     The researches carried out last years in  the  Simulation
Modeling  department  of  Computing Center of Russian Science
Academy in the field of developing of concepts and instruments
for  complicated  systems  modeling  let us now begin the new
step in evolution of simulation instruments  -  developing  of
the simulation center in the Internet.
     The principle base of such center should  be  instrumental
systems  of  simulation,  elaborated  in  Simulation Modeling
department of CCAS and the corporative network  of  CCAS  with
it's connection to the Internet.
     The two main applications of such a center we see now, are:

 - developing of spread simulation systems;

 - serving the remote clients in simulation experiments.

     In both of these applications we in Simulation  Modeling
department have some experience.