Engineering Modeling and Design

Chapman, William L.; Bahill, A. Terry; Wymore, A. Wayne

doi:10.1201/9780203757314

Cited by 39 publications

(16 citation statements)

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“…The current system state and a sequence of subsequent inputs allow computation of the future states of the system. The state of a system contains all the information needed to calculate future responses without reference to the history of inputs and responses.”…”

Section: Terminologymentioning

confidence: 99%

“…The state of a system contains all the information needed to calculate future responses without reference to the history of inputs and responses." 46 A system can be in a state for a while, and during this period, the values assigned to its attributes remain constant or steady. 47 The state variable is the multidimensional list of variables that determine the state of the system.…”

Section: System Statesmentioning

confidence: 99%

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Model‐based design of project systems, modes, and states

Shafaat

Kenley

2019

Systems Engineering

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The field of project management has been trying to find generalizable sets of rules, and this article applies approaches and methods from systems engineering to develop such rules that support flexible project design. It presents an approach for modeling projects that divides project systems into three interacting subsystems (planned, executed, and interface systems) and proposes a framework for designing projects that integrates project implementation, verification, and validation. To build a generalizable model, this article revisits the notation of modal systems developed by Wymore and combines it with more recent developments in systems engineering, project design, and management. The temporary and changing environments of projects are addressed by adjusting the Wymorian definitions and related mathematical models to represent projects as a sequence of transient modes rather than activities. This approach enables better design and control of projects by reducing uncertainty and its consequences through a systematic framework for planning, monitoring, and controlling projects.

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Section: Terminologymentioning

confidence: 99%

Section: System Statesmentioning

confidence: 99%

Model‐based design of project systems, modes, and states

Shafaat

Kenley

2019

Systems Engineering

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“…The cost figure of merit is the reciprocal of price and the performance figure of merit is the quantity in liters. Of course in the red world you would have many figures of merit and they would all have associated weights and scoring functions (Chapman, Wymore and Bahill, 1992). But this would just make the analysis more complex and would not solve the problem we point out in this paper.…”

Section: Some Real-world Alternative Distributionsmentioning

confidence: 94%

“…But the Sum Tradeoff Function is used much more in systems engineering (Chapman, Bahill and Wymore, 1992: Grady 1994: Wymore, 1993.…”

Section: Alternatives On a Hyperbolamentioning

confidence: 99%

The preferred alternative in a tradeoff study often depends on the technique used

Bahill

SMC'98 Conference Proceedings. 1998 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No.98CH36218)

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“…In both of our examples, the process of defining classes, their interfaces and the objects resulted in the identification of the system's required functions. In effect, functional decomposition was a fallout of the concept exploration, and did not need to be performed explicitly, as is generally done in the functional design process (Chapman et al 1992).…”

Section: Experience From the Illustrationsmentioning

confidence: 99%

Object oriented systems engineering

Bharathan

Poe

Bahill

Proceedings of the 1995 International Symposium and Workshop on Systems Engineering of Computer Based Systems

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Abstract. Object-Oriented methodology has developed to the point where it has the potential for being a powerful tool in the arsenal of the systems engineer. This paper suggests that such assimilation will require modifications in the method to make it generalizable outside the software design environment. This paper uses the lessons learned from (i) a text-book example and (ii) a systems engineering project where the object-oriented method is being applied to explore the scope and possibility of such assimilation.

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Engineering Modeling and Design

Cited by 39 publications

References 0 publications

Model‐based design of project systems, modes, and states

Model‐based design of project systems, modes, and states

The preferred alternative in a tradeoff study often depends on the technique used

Object oriented systems engineering

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