Emergency Training Simulation Design

Simulation – Perspectives on Simulation using GPSS 2

•Five misconceptions about GPSS

•GPSS is inherently slow

•To do anything sophisticated in GPSS, HELP blocks must be used to combine GPSS models with FORTRAN routines

•GPSS is trivial to learn

•Modeling difficulties arise more frequently due to language shortcomings than due to lack of modeler expertise

•GPSS is batch oriented

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	Recent implementations are much faster than earlier ones.

	Recent implementations have GPSS embedded, so there is no need to call HELP routines.

	GPSS is trivial to learn only to a superficial depth. Real mastery of GPSS requires considerable study.

	Misconceptions about the lack of power of GPSS come from people with an insufficient grasp of the language.

	Early versions were batch oriented. Current versions are designed for both interactive and batch use.

	(Schriber 1988)