Simulation-Based Engineering Of Complex Adaptive Systems

Clymer, John R.

doi:10.1177/003754979907200404

Cited by 21 publications

(27 citation statements)

References 11 publications

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“…We then converted the two process maps into computer simulations using ExtendSim, version 7.0 (Imagine That Inc., San Jose, CA). 15 The two process flows are depicted in figures 1 and 2. For ease of exposition, it is convenient to characterize three types of patients:…”

Section: Study Methodsmentioning

confidence: 99%

Using Process Analysis to Assess the Impact of Medical Education on the Delivery of Pain Services

et al. 2012

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Background:The medical, social, and economic effects of the teaching mission on delivery of care at an academic medical center (AMC) are not fully understood. When a freestanding private practice ambulatory clinic with no teaching mission was merged into an AMC, a natural experiment was created. The authors compared process measures across the two settings to observe the differences in system performance introduced by the added steps and resources of the AMC's teaching mission. Methods: After creating process maps based on activity times realized in both settings, the authors developed discrete-event simulations of the two environments. The two settings were comparable in the levels of key resources, but the AMC process flow included three residents/fellows. Simulation enabled the authors to consider an identical schedule across the two settings. Results: Under identical schedules, the average accumulated processing time per patient was higher in the AMC. However, the use of residents allowed simultaneous processing of multiple patients. Consequently, the AMC had higher

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Section: Study Methodsmentioning

confidence: 99%

Using Process Analysis to Assess the Impact of Medical Education on the Delivery of Pain Services

et al. 2012

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“…This choice would however, lead to a problem in validation since the sensed values need to be chosen arbitrarily, perhaps in the form of some probabilistic distribution [29,30]. Although probabilistic distributions are prevalent in literature, they can be used to represent simple phenomena such as arrivals, incidents of events etc.…”

Section: B Possible Modeling Approachesmentioning

confidence: 99%

A Novel Agent-Based Simulation Framework for Sensing in Complex Adaptive Environments

Niazi

Hussain²

2011

IEEE Sensors J.

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“…For example, mitrochondria are believed to be primitive bacterial organisms that have become organelles within cells; cells aggregated and special-and its occurrence is a surprise when the system concept is built. This is why simulation of the entire system, operating within its operational environment, is an important part of engineering of complex systems, as well discussed by Clymer (2009).…”

Section: Central Ideas and Concepts In Complex Adaptive Systemsmentioning

confidence: 99%

Issue 5: “What Distinguishes Complex Adaptive Systems From Other Kinds of Systems?”

Sage¹,

Ring²,

Sheard³

2010

INSIGHT

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December 2010 | Volume 13 Issue 4 36 FELLOWS' INSIGHT ized to form multicellular animals, and an animal may be an agent in a formation of a particular herd of animals. Systems and the Relationship to HumansA traditional view of systems considers the system to be a technological or physical system, with humans as operators and observers being considered outside the system, whereas most work with CASs includes the notion of human activity systems within the CAS itself. A system may be complex and intricately patterned. In contrast, the observer may be facile (able to navigate such complexity) or may believe the system ought to be orderly and mechanically predictable, and falsely attribute "unpredictability" to the system. This gives rise to the notion that complexity lies not within the system being observed nor within the observer but in the nature of the relationship between the observer and the observed. Complex Systems Disciplines and What Makes a System ComplexMost studies of complex systems (such as Axelrod and Cohen 1999) are multidisciplinary, which runs counter to a general scientific trend toward increasing fragmentation and specialization in most traditional disciplines. It is not the large number of parts in a system that makes the system complex; it is the way that the parts interact. A product may consist of abundant parts, but if these parts interact only in a known, designed, and structured fashion, then the system is not complex, although it may be big. Some researchers have divided the problems of large systems into two types: "complicated" for systems that have many elements though their relationships are only moderately tangled, and "complex" for systems whose relationships are hard to tease apart and indeed may contribute most of the value to the system. Relevance to the Practice of Systems EngineeringThese notions suggest that the practice of systems engineering needs to include more knowledge from the field of complex systems than has survived the last two decades of process-orientation. The theory behind what we do must be made explicit. Our heuristics must also be resolved against theory. Our cause-effect approach must broaden and also attend to critical-mass and tipping-point concepts, and our modeling must broaden from functions and flows to capabilities and effects. Furthermore, predicates are not sufficient in CAS efforts, including design. Designers must admit to the presence of concurrency and simultaneity. Issue 5: "What Distinguishes Complex Adaptive Systems From Other Kinds of Systems?"Andrew P. Sage, andrew.sage@incose.org; Jack Ring, jack.ring@incose.org; and Sarah Sheard, sarah.sheard@incose.org Central Ideas and Concepts in Complex Adaptive SystemsC omplex adaptive systems (CASs) are currently being studied in many places, including universities in many different departments. As a result, what are considered the central ideas of this field vary considerably from one research group to another, making it difficult to capture specific, agreed-upon definitions. Nevertheless, som...

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Simulation-Based Engineering Of Complex Adaptive Systems

Cited by 21 publications

References 11 publications

Using Process Analysis to Assess the Impact of Medical Education on the Delivery of Pain Services

Using Process Analysis to Assess the Impact of Medical Education on the Delivery of Pain Services

A Novel Agent-Based Simulation Framework for Sensing in Complex Adaptive Environments

Issue 5: “What Distinguishes Complex Adaptive Systems From Other Kinds of Systems?”

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