An Object-Oriented Simulation Environment Supporting Persistence

by Stephanie J. Cammarata, Christopher Burdorf


Full Document

FormatFile SizeNotes
PDF file 0.8 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.


Purchase Print Copy

 FormatList Price Price
Add to Cart Paperback8 pages $20.00 $16.00 20% Web Discount

This Note describes the Persistent Simulation Environment (PSE), which combines object-oriented simulation with a persistent object repository and domain-dependent object prefetching facilities. The goals of PSE are (1) to augment a contemporary object-oriented programming language with discrete event and process-based simulation facilities equaling those found in simulation languages such as Simscript and Simula; (2) to tightly couple an object-oriented simulation language with a secondary storage facility to achieve the persistence of simulation objects; and (3) to improve the swapping of persistent simulation objects between main memory and secondary storage through the use of object prefetching. The authors present the simulation facilities supported by PSE, including examples that demonstrate the use of events, processes, and resources. They discuss the persistent object system within PSE and describe the methodology they developed for object prefetching. Finally, they consider two PSE applications and identify limitations and areas for future work.

This report is part of the RAND Corporation Note series. The note was a product of the RAND Corporation from 1979 to 1993 that reported other outputs of sponsored research for general distribution.

Permission is given to duplicate this electronic document for personal use only, as long as it is unaltered and complete. Copies may not be duplicated for commercial purposes. Unauthorized posting of RAND PDFs to a non-RAND Web site is prohibited. RAND PDFs are protected under copyright law. For information on reprint and linking permissions, please visit the RAND Permissions page.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.