Some Citations About the Scientific Work of Tuncer I. Ören

Some Citations About the Scientific Work of Tuncer I. Ören

On advancing simulation methodology

"Starting with Zeigler's initial steps in the development of a theory and framework for the practice of modelling and simulation [Zeigler (1976)] and the seminal article by Ören and Zeigler in Simulation [Ören, Zeigler (1979)] a whole series of conferences on Modelling and Simulation Methodology was held in the late seventies and throughout the eighties. The publications that resulted from these, specialized, conferences became mandatory reference texts in M&S at a number of universities the whole world over [Zeigler et al. (1979)] [Ören et al. (1984)] [Elzas et al. (1986)] [Elzas et al. (1989)]."

Elzas, Maurice S. (2003). The BoK Stops Here! Modeling & Simulation, Volume 2, Number 3, July-September 2003

"Tuncer Ören was extremely active in the organization of meetings in Europe, notably a 1979 workshop on the standardization of simulation languages in St. Agata, Italy."

Nance, R.E. and Sargent, R.G. (2002). Perspectives on the Evolution of Simulation, INFORMS, 50:1, 161-172

"Zeigler [234], Oren [162, 163], Elzas [53, 54], and Nance [156] have advanced the state of the art in simulation methodology." (p. 23)

Fishwick, P.A.(1995). Simulation Model Design and Execution - Building Digital Worlds. Prentice-Hall, Englewood-Cliffs, NJ.

"In a very significant paper, Oren and Zeigler [1979] pointed out several shortcomings in current languages and proposed developing new languages based on two concepts." (p. 18).

Pegden C.D., Shannon, R.E., Sadowski, R.P. (1995). Introduction to Simulation Using SIMAN. McGraw-Hill, New York, NY.

"On the basis of the ideas of Ören/Zeigler a new approach to definitions will be introduced in this paper. As mentioned, the fundamental demands made on a simulation system originate from T. Ören and B.P. Zeigler in the eighties."

Wittmann, J. (1992). Model and Experiment — A New Approach to Definitions. In: P. Luker (ed.), Proceedings of the 1992 Summer Computer Simulation Conference, 1992 July 27-30, Reno, Nevada, The Society for Computer Simulation International, San Diego, CA, pp. 115-119.

"And a formalization stage: Zeigler and Ören introduced their metaconcepts and explained how earlier languages fit into a formal taxonomy of modeling. They 'classed up' our act something that was sorely needed."

Kiviat, P.J. (1991). Simulation, Technology, and the Decision Process. ACM Transactions on Modeling and Computer Simulation, 1:2 (April), 89-98. (Commenting on the stages of simulation language evolution)

"In the end of 1970s, after Oren et al. presented the concept of advanced simulation methodology (basic conceptual frame for simulation, structured modelling and experimental frame), a new historical period of simulation software began, comparing with conventional simulation language, it has the following remarkable characteristics in structure." (p. 1062).

Wang, Z.-Z., Li, B.-H. (1991). Computer Simulation: The Past, Present and Future. Proc. of the 1991 Summer Computer Simulation Conference, 1991 July 22-24, Baltimore, MD, The Society for Computer Simulation International, San Diego, CA, pp. 1059-1065.

"Our approach towards this goal is to conceive simulation as a special case of a more general and conceptually richer paradigm of model-based activities’ (Ören 1984, p.5). It is the aim of this paper to illustrate that the different modeling views simulationists employ are not ‘worlds apart’ from each other, but they complement each other, and a certain extent may be integrated." (p. 99)

Akkermans, H.A., van Dijkum, C. (1990). Worlds Apart? The Modelling Cycle, Paradigms and the World View in Simulation Modelling. In: Modelling and Simulation, B. Schmidt (ed.), Proc. of the 1990 European Simulation Multiconference, 1990 June 10-13, Nuremberg, Germany, The Society for Computer Simulation International, San Diego, CA, pp. 99-106.

"In a prominent paper, Ören and Zeigler [25] pointed out three major drawbacks of the traditional simulation languages and simulation environments." (p. 58).

Lin, M.-J. (1990). Automatic Simulation Model Design from a Situation Theory Based Manufacturing System Description. Ph.D. Dissertation, Texas A&M University, College Station, Texas.

"The proposed approach is based on some ideas of Jávor and Ören (Jávor 1986, Ören 1986)."

Artificial Intelligence, No. 20 (July), 12-17.Masar, L. (1989). A Knowledge-Based Approach to Discrete Systems Modeling and Simulation. Canadian

"In the late 70's, Oren and Zeigler presented the concept of hierarchically modelling and experimental frames (Oren [1] 1979). From then on, the emphasis of simulation software development began to change." (p. 500).

An, Y., Xiong, G., Xiao, T., Wang, X. (1989). IPSOS -- An Integrated Simulation System for Industrial Processes. In: Proceedings of the 1989 Beijing Simulation Conference. Pergamon Press, London, England, 500-504.

"Inspired by Oren and Zeigler's thought-provoking article in the March 1979 issue of Simulation [1], and the work that has taken place at several Universities since then, augmented with experience in Knowledge Engineering has allowed the CM-100 designers to conceive and build a tool that covers the whole trajectory from systems analysis through model construction." (p. 49).

Elzas, M.S. (1988). Expert Simulation Systems in Practice. In: Proceedings of the 12th World Congress on Scientific Computation, R. Vichnevetsky et al. (Eds.), July 18-22, 1988, Paris, France, Vol. 5, pp. 47-50.

"… Finally, in a very significant paper, Oren and Zeigler (79) pointed out several weaknesses in current languages and proposed developing new languages based on two concepts." (p. 150).

Shannon, R.E. (1986). Intelligent Simulation Environments. In: Intelligent Simulation Environments. P.A. Luker, H.H. Adelsberger (Eds.). Proceedings of the Conference on Intelligent Simulation Environments., 1986, January 23-25, San Diego, CA, SCS, San Diego, CA.

"The definition of experimental frame as given by Ören and Zeigler (7) is presented. A few of the newly developed simulation softwares have employed this concept such as GEST and SIMAN." (p. 61).

Tsai, J., Juang, S-Y. (1986). An Experimental Frame Manager for the GASP IV Simulation Language. Proceedings of the 1986 Summer Computer Simulation Conference, July 28-30, 1986, Reno, Nevada, 61-64.

"For both simulation researchers and practitioners, this book may be worth buying just for its two chapters (by Oren and Elzas). They provide a unifying view of simulation, artificial intelligence, system theories, software engineering and modelling. … For those in our profession who still consider simulation to be merely a set of techniques for use 'when all else fails' (Wagner, 1975), this book contains an interesting and quite powerful counterview."

Samson, D. (1985). Review of "Simulation and Model-Based Methodologies: An Integrative View, " T.I. Oren, B.P. Zeigler, M.S. Elzas (Ed.). Springer-Verlag, Berlin, 1984, xiii + 651 p., European Journal of Operations Research, 1985, pp. 410-413.

"Oren has produced an admirably detailed classification of computer simulation tools (73-75). Something of this nature is needed for general systems models and tools." (p. 64).

Troncale, L.R. (1985). The Future of General Systems Research: Obstacles, Potentials, Case Studies. Systems Research, 2:1, 43-84.

"Over the last five years several special purpose simulation systems and general purpose languages have been developed that, either independently or influenced by Oren and Zeigler, have included a functional separation of model development, entity description, scenario specification, and output analysis." (p. 563).

Ketcham, M.G., Fowler, J.W., Phillips, D.T. (1984). New Directions for the Design of Advanced Simulation Systems. In: Proc. of the 1984 Winter Simulation Conference, S. Sheppard, U. Pooch, and D. Pegden (eds.), Nov. 28-30, Dallas, TX, SCSI, San Diego, CA, 563-568.

"Tuncer I. Ören concludes the special section with the most futuristic and methodologically related presentation. He outlines the possibilities for basing information on model bases in addition to data bases. While data base management systems have descriptive power, model base management systems add predictive power: they store knowledge in a form required by the cybernetic society." (p. 144).

Zeigler, B.P. (Ed.) (1984). Introduction. Behavioral Science, 29:3 (July) - Special Section on Simulation Methodology for Human Systems Modelling, pp. 143-144.

"Indeed, quoting Tuncer, we are somewhat like 'architects of the future' in establishing categories in which we feel that much future effort will be concentrated." (p. 55).

Zeigler, B.P. (1982). Subject Plan for an Encyclopedia: A Taxonomy for Modelling and Simulation. ACM Simuletter, 13:1-4, 55-62.

"Research is currently underway to develop simulation software for conducting an entire simulation study. The design of this software is based on concepts of SDL, of GERT-type networks (12) and of Ören and Zeigler (9)." (p. 362).

Standridge, C.R., Pritsker, A.A.B. (1982). Using Data Base Capabilities in Simulation. In: Progress in Modelling and Simulation, F.E. Cellier (Ed.). Academic Press, London, England, 347-365.

"The author has oriented the theory for clarifying the conceptions of system and model, while he does not consider any one of the Czechoslovak group to be able to add more to the results of Mihram [24], Zeigler [35], and Oren[27]."

Kindler, E. (1981). A Formalization of Some Simulation Language Concepts. Int. J. General Systems. Vol. 6, pp. 183-190.

"No doubt, our own ideas have profited from the published works of Zeigler [4;5], Ören [6;7], Mathewson [9;10], and the DELTA project [11]." (p. 175).

Nance, R.E., Mezaache, A.L., Overstreet, C.M. (1981). Simulation Model Management: Resolving the Technological Gaps. Proceedings of the 1981 Winter Simulation Conference, pp. 173-179.

"The considerations in this section are strongly influenced by the pioneer work in modeling methodology as performed by Zeigler [7.22] and Oren [7.15, 7.16, 7.17]. These were the first scientists who tried only recently to conceptualize modeling in a methodological manner." (p. 188).

Cellier, F.E. (1979). Combined Continuous/Discrete System Simulation by use of Digital Computers: Techniques and Tools. Doctoral Dissertation, Swiss Federal Institute of Technology, Zürich, Switzerland.

"The luncheon speaker on Wednesday was Dr. Tuncer I. Oren of the University of Ottawa. He developed a categorization of simulation technology which clarified concepts even for long-time workers in the field, and which clearly defined regions in which additional effort is needed to meet identified requirements." (p. 5).

Garzia, R.F. (Ed.) (1979). Simulation Week Report. Modelling (IEEE Computer Society Simulation Technical Committee Newsletter), Issue 5 (May 1979), p. 5.

"In this paper a comprehensive methodology for system simulation is proposed. The approach bears the stamp of general systems theory, a field to which both authors of this paper have made frequent and significant contributions."

Karplus, W.J. (1979). Review of the Article by T.I. Ören and B.P. Zeigler (1979), Concepts for Advanced Simulation Methodologies, Simulation 32:3, 69-82.

"A good simulation language should offer the possibility of writing a program in such a way, that the structure of the program is the same as the structure of the real system. As far as the author of this paper knows, there is just one language that offers this possibility in a clear way. This is the GEST '78 language as defined by T.I. Ören [3]." (p. 201).

Kettenis, D.L. (1979). Combined Simulation with SIMULA '67. In: L. Dekker et al. (Eds.) Preprints of IMACS Congress 1979, Sorrento, Sept. 24-28, 1979, pp. 291-298.

(Updated by T.I. Ören on June 14, 2004)

"Starting with Zeigler's initial steps in the development of a theory and framework for the practice of modelling and simulation [Zeigler (1976)] and the seminal article by Ören and Zeigler in Simulation [Ören, Zeigler (1979)] a whole series of conferences on Modelling and Simulation Methodology was held in the late seventies and throughout the eighties. The publications that resulted from these, specialized, conferences became mandatory reference texts in M&S at a number of universities the whole world over [Zeigler et al. (1979)] [Ören et al. (1984)] [Elzas et al. (1986)] [Elzas et al. (1989)]."
	Elzas, Maurice S. (2003). The BoK Stops Here! Modeling & Simulation, Volume 2, Number 3, July-September 2003
"Tuncer Ören was extremely active in the organization of meetings in Europe, notably a 1979 workshop on the standardization of simulation languages in St. Agata, Italy."
	Nance, R.E. and Sargent, R.G. (2002). Perspectives on the Evolution of Simulation, INFORMS, 50:1, 161-172
"Zeigler [234], Oren [162, 163], Elzas [53, 54], and Nance [156] have advanced the state of the art in simulation methodology." (p. 23)
	Fishwick, P.A.(1995). Simulation Model Design and Execution - Building Digital Worlds. Prentice-Hall, Englewood-Cliffs, NJ.
"In a very significant paper, Oren and Zeigler [1979] pointed out several shortcomings in current languages and proposed developing new languages based on two concepts." (p. 18).
	Pegden C.D., Shannon, R.E., Sadowski, R.P. (1995). Introduction to Simulation Using SIMAN. McGraw-Hill, New York, NY.
"On the basis of the ideas of Ören/Zeigler a new approach to definitions will be introduced in this paper. As mentioned, the fundamental demands made on a simulation system originate from T. Ören and B.P. Zeigler in the eighties."
	Wittmann, J. (1992). Model and Experiment — A New Approach to Definitions. In: P. Luker (ed.), Proceedings of the 1992 Summer Computer Simulation Conference, 1992 July 27-30, Reno, Nevada, The Society for Computer Simulation International, San Diego, CA, pp. 115-119.
"And a formalization stage: Zeigler and Ören introduced their metaconcepts and explained how earlier languages fit into a formal taxonomy of modeling. They 'classed up' our act something that was sorely needed."
	Kiviat, P.J. (1991). Simulation, Technology, and the Decision Process. ACM Transactions on Modeling and Computer Simulation, 1:2 (April), 89-98. (Commenting on the stages of simulation language evolution)
"In the end of 1970s, after Oren et al. presented the concept of advanced simulation methodology (basic conceptual frame for simulation, structured modelling and experimental frame), a new historical period of simulation software began, comparing with conventional simulation language, it has the following remarkable characteristics in structure." (p. 1062).
	Wang, Z.-Z., Li, B.-H. (1991). Computer Simulation: The Past, Present and Future. Proc. of the 1991 Summer Computer Simulation Conference, 1991 July 22-24, Baltimore, MD, The Society for Computer Simulation International, San Diego, CA, pp. 1059-1065.
"Our approach towards this goal is to conceive simulation as a special case of a more general and conceptually richer paradigm of model-based activities’ (Ören 1984, p.5). It is the aim of this paper to illustrate that the different modeling views simulationists employ are not ‘worlds apart’ from each other, but they complement each other, and a certain extent may be integrated." (p. 99)
	Akkermans, H.A., van Dijkum, C. (1990). Worlds Apart? The Modelling Cycle, Paradigms and the World View in Simulation Modelling. In: Modelling and Simulation, B. Schmidt (ed.), Proc. of the 1990 European Simulation Multiconference, 1990 June 10-13, Nuremberg, Germany, The Society for Computer Simulation International, San Diego, CA, pp. 99-106.
"In a prominent paper, Ören and Zeigler [25] pointed out three major drawbacks of the traditional simulation languages and simulation environments." (p. 58).
	Lin, M.-J. (1990). Automatic Simulation Model Design from a Situation Theory Based Manufacturing System Description. Ph.D. Dissertation, Texas A&M University, College Station, Texas.
"The proposed approach is based on some ideas of Jávor and Ören (Jávor 1986, Ören 1986)."
	Artificial Intelligence, No. 20 (July), 12-17.Masar, L. (1989). A Knowledge-Based Approach to Discrete Systems Modeling and Simulation. Canadian
"In the late 70's, Oren and Zeigler presented the concept of hierarchically modelling and experimental frames (Oren [1] 1979). From then on, the emphasis of simulation software development began to change." (p. 500).
	An, Y., Xiong, G., Xiao, T., Wang, X. (1989). IPSOS -- An Integrated Simulation System for Industrial Processes. In: Proceedings of the 1989 Beijing Simulation Conference. Pergamon Press, London, England, 500-504.
"Inspired by Oren and Zeigler's thought-provoking article in the March 1979 issue of Simulation [1], and the work that has taken place at several Universities since then, augmented with experience in Knowledge Engineering has allowed the CM-100 designers to conceive and build a tool that covers the whole trajectory from systems analysis through model construction." (p. 49).
	Elzas, M.S. (1988). Expert Simulation Systems in Practice. In: Proceedings of the 12th World Congress on Scientific Computation, R. Vichnevetsky et al. (Eds.), July 18-22, 1988, Paris, France, Vol. 5, pp. 47-50.
"… Finally, in a very significant paper, Oren and Zeigler (79) pointed out several weaknesses in current languages and proposed developing new languages based on two concepts." (p. 150).
	Shannon, R.E. (1986). Intelligent Simulation Environments. In: Intelligent Simulation Environments. P.A. Luker, H.H. Adelsberger (Eds.). Proceedings of the Conference on Intelligent Simulation Environments., 1986, January 23-25, San Diego, CA, SCS, San Diego, CA.
"The definition of experimental frame as given by Ören and Zeigler (7) is presented. A few of the newly developed simulation softwares have employed this concept such as GEST and SIMAN." (p. 61).
	Tsai, J., Juang, S-Y. (1986). An Experimental Frame Manager for the GASP IV Simulation Language. Proceedings of the 1986 Summer Computer Simulation Conference, July 28-30, 1986, Reno, Nevada, 61-64.
"For both simulation researchers and practitioners, this book may be worth buying just for its two chapters (by Oren and Elzas). They provide a unifying view of simulation, artificial intelligence, system theories, software engineering and modelling. … For those in our profession who still consider simulation to be merely a set of techniques for use 'when all else fails' (Wagner, 1975), this book contains an interesting and quite powerful counterview."
	Samson, D. (1985). Review of "Simulation and Model-Based Methodologies: An Integrative View, " T.I. Oren, B.P. Zeigler, M.S. Elzas (Ed.). Springer-Verlag, Berlin, 1984, xiii + 651 p., European Journal of Operations Research, 1985, pp. 410-413.
"Oren has produced an admirably detailed classification of computer simulation tools (73-75). Something of this nature is needed for general systems models and tools." (p. 64).
	Troncale, L.R. (1985). The Future of General Systems Research: Obstacles, Potentials, Case Studies. Systems Research, 2:1, 43-84.
"Over the last five years several special purpose simulation systems and general purpose languages have been developed that, either independently or influenced by Oren and Zeigler, have included a functional separation of model development, entity description, scenario specification, and output analysis." (p. 563).
	Ketcham, M.G., Fowler, J.W., Phillips, D.T. (1984). New Directions for the Design of Advanced Simulation Systems. In: Proc. of the 1984 Winter Simulation Conference, S. Sheppard, U. Pooch, and D. Pegden (eds.), Nov. 28-30, Dallas, TX, SCSI, San Diego, CA, 563-568.
"Tuncer I. Ören concludes the special section with the most futuristic and methodologically related presentation. He outlines the possibilities for basing information on model bases in addition to data bases. While data base management systems have descriptive power, model base management systems add predictive power: they store knowledge in a form required by the cybernetic society." (p. 144).
	Zeigler, B.P. (Ed.) (1984). Introduction. Behavioral Science, 29:3 (July) - Special Section on Simulation Methodology for Human Systems Modelling, pp. 143-144.
"Indeed, quoting Tuncer, we are somewhat like 'architects of the future' in establishing categories in which we feel that much future effort will be concentrated." (p. 55).
	Zeigler, B.P. (1982). Subject Plan for an Encyclopedia: A Taxonomy for Modelling and Simulation. ACM Simuletter, 13:1-4, 55-62.
"Research is currently underway to develop simulation software for conducting an entire simulation study. The design of this software is based on concepts of SDL, of GERT-type networks (12) and of Ören and Zeigler (9)." (p. 362).
	Standridge, C.R., Pritsker, A.A.B. (1982). Using Data Base Capabilities in Simulation. In: Progress in Modelling and Simulation, F.E. Cellier (Ed.). Academic Press, London, England, 347-365.
"The author has oriented the theory for clarifying the conceptions of system and model, while he does not consider any one of the Czechoslovak group to be able to add more to the results of Mihram [24], Zeigler [35], and Oren[27]."
	Kindler, E. (1981). A Formalization of Some Simulation Language Concepts. Int. J. General Systems. Vol. 6, pp. 183-190.
"No doubt, our own ideas have profited from the published works of Zeigler [4;5], Ören [6;7], Mathewson [9;10], and the DELTA project [11]." (p. 175).
	Nance, R.E., Mezaache, A.L., Overstreet, C.M. (1981). Simulation Model Management: Resolving the Technological Gaps. Proceedings of the 1981 Winter Simulation Conference, pp. 173-179.
"The considerations in this section are strongly influenced by the pioneer work in modeling methodology as performed by Zeigler [7.22] and Oren [7.15, 7.16, 7.17]. These were the first scientists who tried only recently to conceptualize modeling in a methodological manner." (p. 188).
	Cellier, F.E. (1979). Combined Continuous/Discrete System Simulation by use of Digital Computers: Techniques and Tools. Doctoral Dissertation, Swiss Federal Institute of Technology, Zürich, Switzerland.
"The luncheon speaker on Wednesday was Dr. Tuncer I. Oren of the University of Ottawa. He developed a categorization of simulation technology which clarified concepts even for long-time workers in the field, and which clearly defined regions in which additional effort is needed to meet identified requirements." (p. 5).
	Garzia, R.F. (Ed.) (1979). Simulation Week Report. Modelling (IEEE Computer Society Simulation Technical Committee Newsletter), Issue 5 (May 1979), p. 5.
"In this paper a comprehensive methodology for system simulation is proposed. The approach bears the stamp of general systems theory, a field to which both authors of this paper have made frequent and significant contributions."
	Karplus, W.J. (1979). Review of the Article by T.I. Ören and B.P. Zeigler (1979), Concepts for Advanced Simulation Methodologies, Simulation 32:3, 69-82.
"A good simulation language should offer the possibility of writing a program in such a way, that the structure of the program is the same as the structure of the real system. As far as the author of this paper knows, there is just one language that offers this possibility in a clear way. This is the GEST '78 language as defined by T.I. Ören [3]." (p. 201).
	Kettenis, D.L. (1979). Combined Simulation with SIMULA '67. In: L. Dekker et al. (Eds.) Preprints of IMACS Congress 1979, Sorrento, Sept. 24-28, 1979, pp. 291-298.