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With the growing complexity of systems, there is a corresponding increase in the complexity of the enterprises that develop, operate, and sustain such systems in an increasingly global environment. This drives the need to take a broader view of enterprises as systems in themselves to which we must apply the principles and practices of architecting. The(More)
Complex systems and enterprises, such as those typical in the aerospace industry, are subject to uncertainties that may lead to suboptimal performance or even catastrophic failures if unmanaged. This work focuses on flexibility as an important means of managing uncertainties and leverages real options analysis that provides a theoretical foundation for(More)
Although researchers suggest that a systems approach is required to make meaningful advances in the U.S. psychological health care system for service members, limited research has considered such an approach. This research uses an enterprise architecting framework to identify the system's strengths and areas for opportunity as they relate to the Ecosystem,(More)
OBJECTIVES The objectives were to evaluate three models that use information gathered during triage to predict, in real time, the number of emergency department (ED) patients who subsequently will be admitted to a hospital inpatient unit (IU) and to introduce a new methodology for implementing these predictions in the hospital setting. METHODS Three(More)
OBJECTIVES The objective was to test the generalizability, across a range of hospital sizes and demographics, of a previously developed method for predicting and aggregating, in real time, the probabilities that emergency department (ED) patients will be admitted to a hospital inpatient unit. METHODS Logistic regression models were developed that estimate(More)
Architecting the system of systems enterprise: Enabling constructs and methods from the field of engineering systems. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this(More)
As systems become more complex, the roles involved in developing and managing such systems also become more complex. As such, there is increasing interest in training engineering professionals to think systemically. However, sufficient data are missing to understand the mechanisms that most effectively and efficiently develop systems thinking. This article(More)