Ownership transfer for non-federate object and time management in developing an hla compliant logistics model.

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A seaport simulation model, PORTSIM, has been developed for the Department of Defense (DOD) at Argonne National Laboratory. PORTSIM simulates the detailed processes of cargo loading and unloading in a seaport and provides throughput capability, resource utilization, and other important information on the bottlenecks in a seaport operation, which are crucial data in determining troop and equipment deployment capability. There are two key problems to solve in developing the HLA-compliant PORTSIM model. The first is the cargo object ownership transfer problem. In PORTSIM, cargo items, e.g. vehicles, containers, and pallets, are objects having asset attributes. Cargo comes to a seaport ... continued below

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10 p.

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Li, Z. January 12, 1998.

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Description

A seaport simulation model, PORTSIM, has been developed for the Department of Defense (DOD) at Argonne National Laboratory. PORTSIM simulates the detailed processes of cargo loading and unloading in a seaport and provides throughput capability, resource utilization, and other important information on the bottlenecks in a seaport operation, which are crucial data in determining troop and equipment deployment capability. There are two key problems to solve in developing the HLA-compliant PORTSIM model. The first is the cargo object ownership transfer problem. In PORTSIM, cargo items, e.g. vehicles, containers, and pallets, are objects having asset attributes. Cargo comes to a seaport for loading or unloading. The ownership of a cargo object transfers from its carrier to the port and then from the port to a new carrier. Each owner of the cargo object is responsible for publishing and updating the attributes of the cargo object when it has the ownership. This creates a unique situation in developing the PORTSIM federate object model, that is, the ownership of the object instead of the attributes needs to be changed in handling the cargo object in the PORTSIM federate. The ownership management service provided by the current RTI does not directly address this issue. The second is the time management issue. PORTSIM is an event-driven simulation that models seaport operations over time. To make PORTSIM HLA compliant, time management must be addressed to allow for synchronization with other simulation models. This paper attempts to address these two issues and methodologies developed for solving these two problems.

Physical Description

10 p.

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OSTI as DE00010569

Medium: P; Size: 10 pages

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  • Simulation Interoperability Workshop, Orlando, FL (US), 03/09/1998--03/13/1998

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  • Report No.: ANL/DIS/CP-95375
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10569
  • Archival Resource Key: ark:/67531/metadc622608

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  • January 12, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 6, 2017, 6:49 p.m.

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Li, Z. Ownership transfer for non-federate object and time management in developing an hla compliant logistics model., article, January 12, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc622608/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.