improvements on the computer modal and use the best ideas on the real process. With the help of this, thus, a lot of time and money can be saved. Merkuryeva (2005) observed that simulation model are adstraction of a reality, which simplify or eliminate some features in order to gain insight into the interconnections and behavior of other aspects of system. By the analysis of the output data received from simulation experiments and solving optimization problem, Meta modeling approach provides tools for manipulation with simulation model and their analysis through a systematic application of concepts such as meta model, meta class, metaknowlege, metarule, metaheuristics etc.
REVIEW OF SIMULATION IN HEALTHCARE
ฺBarnes (1997) et al, found the application of simulation appropriate with well-defined steps and boundaries. A computer simulation model of an outpatient clinic could be built within the specified time frame given for each study. Once the computer model was set up in "Microsaint" simulation runs were executed to track patients moving through the network, emulating patients going through the stepsd of an actual clinic visit.
according to denney (1997) activity based costing functions have been carefully designed to solve unique hospital and healthcare specific simulation problems. Theeasy ti use menus permit the accumulation of activity data for locations, resources, and entities. The tool, assumptions and short-cuts that have routinely characterized healthcare and hospital simualtion, are no longer necessary. Rather, it is now possible to model complex healthcare systems accurately and with confidence in the results.
as it is studied by Exter & Hopwood (1999) the computer simulations is useful to maximize OR utilization, control of the surgical date must be moved from the surgeon and patient to the OR suite also Developed an OR scheduling strategy to maximize OR utilization. Block time is allocated based on expected total hours of elective cases.