{"title":"Simulation of a Private Line Communications Network","authors":"Marvin Ames","doi":"10.1109/TSSC.1968.300165","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300165","url":null,"abstract":"A General Purpose Simulation System (GPSS) model was developed for Sinclair Oil Corporation's private line commulnications network. This network includes sixty terminals connected by company owned and operated microwave circuits and AT&T Telpak Systems. The model was designed to evaluate current networks and to assist in designing future systems. This paper reviews the background, development, and implementation of this project. In addition, other simulation projects are briefly summarized.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129885226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GPSS/360-Norden, an Improved System Analysis Tool","authors":"William A. Walde, David Eig, Sherman R. Hunter","doi":"10.1109/TSSC.1968.300173","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300173","url":null,"abstract":"The General Purpose Simulation System (GPSS)/ 360 program used with the IBM System/360 computers has been modified to permit larger models, data libraries, and an interactive user service. The major improvements of the GPSS/360-Norden are the following. 1) Models of any size may be run by using direct access devices to store sections of the model. 2) The models can interact with data banks stored on direct access devices. 3) The model output can be presented to the user on a 2250 display it as well as on the conventional printer. 4) Model generation and debugging has been improved using the 2250 display unit. Complete compatibility has been maintained and normal use of GPSS/360 is unaffected by the changes and additions.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117064269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation as a Transportation Tool","authors":"G. S. Lasdon","doi":"10.1109/TSSC.1968.300166","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300166","url":null,"abstract":"Simulation has been used to solve a tenninal operation problem involving manning in existing facilities and to test changes in design for new facilities. The discussion includes why General Purpose Simulation System (GPSS) III was chosen, how the model was developed, further uses for the same model, and the results of the simulation.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126711623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Pits Simulation for Production Planning","authors":"Jacques M. Pillebout","doi":"10.1109/TSSC.1968.300169","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300169","url":null,"abstract":"Simulation techniques are used to study a deterministic problem in the aluminium industry. Mathematical methods alone are inadequate to solve this scheduling problem. Three segments are connected: 1) simulation model, 2) optimization with dynamic programming, and 3) sorting, heuristic, and manual treatments. The economical function is the cost of electrical energy consumed. With dynamic programming the energy consumption of the soaking pits is optimized by using simplified hypotheses. Simulation allows one to adapt mathematical results to the real process. The same simulation model was used during the analysis period and, repetitively, during the operational period.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121870634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation of a Traveling Repairman Problem","authors":"C. J. Green","doi":"10.1109/TSSC.1968.300167","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300167","url":null,"abstract":"When a system with many stations at widespread physical locations has to be maintained, there arises a question regarding the policies the repair crew should use in determining the station to repair next. This problem is known as \"the traveling repairman problem.\" Although this paper discusses a simulation model that is being used to formulate the traveling repairman's policies for a specific system, the aspect of interest is the unconventional manner in which General Purpose Simulation System (GPSS) is used. The system has been modeled not by simulating the physical events or devices but rather by simulating conceptual paperwork. Failure notices and the log of the repair vehicle's positions are the elements that are modeled rather than observation stations or the repair vehicle itself.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125867042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Role of Simulation in Computing","authors":"T. A. Humphrey","doi":"10.1109/TSSC.1968.300163","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300163","url":null,"abstract":"Three points about the role of simulation in computing are discussed. The first point is a prediction about the present trend in the computer industry and the requirements of this trend line. The second point concems where the computer industry stands on this trend line with respect to these requirements. The third indicates the path to follow to keep abreast of the trend line. Simulation of a computer system is defined as a model to evaluate performance of a total computer system operating in the user's environment. Few computer systems today provide any information on how they are operating. Parameters are needed. This leads to the prediction that computer systems will evolve to become self-monitoring and self-adjusting. In certain areas, computers are now beginning to study themselves as well as other applications. The IBM Corporation has developed CSS/360 which provides one set of basic models that the user can combine to suit his own configuration. Knowledge gained in the Gemini program provided several areas of technical fallout that revised prior concepts of simulation. The problem for the future is to keep pace with the evergrowing requirements and to make the systems more user oriented, while developing improved calibration techniques. Self-monitoring systems must provide data on both hardware and control program portions of computer systems while performing various applications.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130061218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Objectives of Simulation","authors":"A. Swanson","doi":"10.1109/TSSC.1968.300157","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300157","url":null,"abstract":"Steps that must be taken to increase the acceptance of the results of simulation in terms of the decision process by the resource manager are discussed. The actions covered are categorized in terms of the technological content of the practice itself and those relating to the process of the practice. Specific work underway to increase responsiveness and accuracy and to reduce costs are related. Suggestions are drawn from another discipline that are offered as guidelines for gaining acceptance of simulation results and a decision from a resource manager.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129013167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Company Model for Income Prediction","authors":"Michel Araten, B. Price","doi":"10.1109/TSSC.1968.300160","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300160","url":null,"abstract":"Corporate financial planning requires periodic reestimates of future revenues and costs. The Celanese Chemical Company is using a simulation model to supplement single-point estimates of net income with a range of values and their associated probabilities. This permits conservative or optimistic planning within the framework of risk. Inputs to this model include subjective estimates of each major product's sales volume, net sales return, and cost of manufacture and raw material. The model, written in General Purpose Simulation System (GPSS), also incorporates a supply and demand material balance for evaluating the cost effects of forecasted production, feed capacities, and feed-to-product ratios.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128665023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The GPSS On-Line Monitor","authors":"E. Ziegler","doi":"10.1109/TSSC.1968.300172","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300172","url":null,"abstract":"This paper describes a system for monitoring a General Purpose Simulation System (GPSS) run while the run is in progress. The on-line monitor provides the ability to select and display statistics related to the GPSS entities. The IBM 2250 and the IBM 2260 display consoles are used as interface devices. This system is currently in use at the MITRE Corporation, Washington, D.C.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128146244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Simulation: A Management Planning Tool","authors":"E. King","doi":"10.1109/TSSC.1968.300158","DOIUrl":"https://doi.org/10.1109/TSSC.1968.300158","url":null,"abstract":"Simulation, or the use of models, has been successfully applied to engineering problems for several years. The acceptance of simulation as a working tool by management planners has been mixed, at best. In fact, in comparison to the number of engineers who use simulation, management planners who make use of it are in the minority. During the past five years there have been several applications of simulation by management planners. However, the number of models that ended up in the tool kit of top management are few. This paper discusses the role of simulation in management planning at The Boeing Company, Seattle, Wash., and suggests some useful guidelines.","PeriodicalId":120916,"journal":{"name":"IEEE Trans. Syst. Sci. Cybern.","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1968-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116551490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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