Abstract
ABSTRACT The process interaction worldview (PI) provides a description of a simulation model based on the life cycles of its entities. PI has traditionally been described under two perspectives: active resource and active transaction. While many simulation languages support the active transaction approach, the active resource has generally been adopted by M&S formalisms aimed to support modular models. In this paper we introduce the Unified Process Interaction Worldview (UPI) as a representation enabling the benefits of both active resource and active transaction perspectives. UPI is based on HyFlow, a formalism for representing hybrid systems using the process interaction worldview. To show UPI capabilities, we provide a simplified model of an oven with unbounded capacity. The solution of the ordinary differential equations (ODEs) describing oven and inside items temperatures, is computed by exponential time differentiating (ETD) integrators that are also represented in the HyFlow formalism.
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