Hierarchical HLA: Mapping Hierarchical Model Structure into Hierarchical Federation
نویسنده
چکیده
The High Level Architecture (HLA) defines a federation as a group of simulators. The HLA does not define relations between federations. This makes any complicated structure of a system flat. The absence of hierarchy may bring several issues related to data exchange, security and reusability. The paper proposes the Hierarchical HLA that defines hierarchical relationship between federations. The relationship is inspired by Discrete Event System Specification (DEVS) formalism, which provides hierarchical and modular specification of discrete event systems. A federation takes part in a larger federation on behalf of component federates. A federation filters data exchange with the higher federation according to the Simulation Object Model (SOM). In order to control hierarchical federations, extended HLA services or explicit Federation Execution Processes are introduced in the paper.
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