scholarly journals Sensemaking in a value based context for large scale complex engineered systems

2017 ◽  
Author(s):  
Nazareen Sikkandar Basha
Keyword(s):  
Large Scale ◽  
Complex Engineered Systems ◽  
A Value ◽  
Engineered Systems

Estimate Uncertainty: Miscommunication About Definitions of Engineering Terminology

2019 ◽  
Vol 142 (7) ◽  
Author(s):  
John Meluso ◽  
Jesse Austin-Breneman ◽  
Jose Uribe
Keyword(s):  
System Performance ◽  
Large Scale ◽  
Phase 1 ◽  
Parameter Estimate ◽  
Fortune 500 ◽  
System Level ◽  
Future Design ◽  
Complex Engineered Systems ◽  
Current Design ◽  
Engineered Systems

Abstract Communication has been shown to affect the design of large-scale complex engineered systems. Drawing from engineering design, communication, and management literature, this work defines miscommunication as when communication results in a “deficiency” or “problem” that hinders parties from fulfilling their values. This article details a consequential example of miscommunication at a Fortune 500 engineering firm with the potential to affect system performance. In phase 1, interviews with engineering practitioners (n = 82) identified disagreement about what constitutes a parameter “estimate” in the design process. Phase 2 surveyed engineering practitioners (n = 128) about whether estimates communicated for system-level tracking approximate “current” design statuses or “future” design projections. The survey found that both definitions existed throughout the organization and did not correlate with subsystem, position, or design phase. Engineers inadvertently aggregated both current and future estimates into single system-level parameters that informed decision-making, thereby constituting widespread or systemic miscommunication. Thus, even technical concepts may be susceptible to miscommunication and could affect system performance.

Optimization of Complex Engineered Systems Under Risk and Uncertainty

2007 ◽  
Author(s):  
Seung-Kyum Choi ◽  
Mervyn Fathianathan ◽  
Dirk Schaefer
Keyword(s):  
Large Scale ◽  
Optimization Procedure ◽  
Decision Support Tool ◽  
Primary Objective ◽  
Risk And Uncertainty ◽  
Support Tool ◽  
Structural Problems ◽  
Complex Engineered Systems ◽  
Engineered Systems ◽  
Karhunen Loeve Transform

The advances in information technology significantly impact the engineering design process. The primary objective of this research is to develop a novel probabilistic decision support tool to assist management of structural systems under risk and uncertainty by utilizing a stochastic optimization procedure and IT tools. The proposed mathematical and computational framework will overcome the drawbacks of the traditional methods and will be critically demonstrated through large-scale structural problems. The efficiency of the proposed procedure is achieved by the combination of the Karhunen-Loeve transform with the stochastic analysis of polynomial chaos expansion to common optimization procedures. The proposed technology, comprising new and adapted current capabilities, will provide robust and physically reasonable solutions for practical engineering problems.

Toward a Value-Driven Design Approach for Complex Engineered Systems Using Trade Space Exploration Tools

2014 ◽  
Author(s):  
Simon W. Miller ◽  
Timothy W. Simpson ◽  
Michael A. Yukish ◽  
Gary Stump ◽  
Bryan L. Mesmer ◽  
...  
Keyword(s):  
Data Visualization ◽  
Space Exploration ◽  
Systems Design ◽  
Design Decision ◽  
Value Functions ◽  
Complex Engineered Systems ◽  
A Value ◽  
Trade Offs ◽  
Engineered Systems ◽  
Trade Space Exploration

Design decision-making involves trade-offs between many design variables and attributes, which can be difficult to model and capture in complex engineered systems. To choose the best design, the decision-maker is often required to analyze many different combinations of these variables and attributes and process the information internally. Trade Space Exploration (TSE) tools, including interactive and multi-dimensional data visualization, can be used to aid in this process and provide designers with a means to make better decisions, particularly during the design of complex engineered systems. In this paper, we investigate the use of TSE tools to support decision-makers using a Value-Driven Design (VDD) approach for complex engineered systems. A VDD approach necessitates a rethinking of trade space exploration. In this paper, we investigate the different uses of trade space exploration in a VDD context. We map a traditional TSE process into a value-based trade environment to provide greater decision support to a design team during complex systems design. The research leverages existing TSE paradigms and multi-dimensional data visualization tools to identify optimal designs using a value function for a system. The feasibility of using these TSE tools to help formulate value functions is also explored. A satellite design example is used to demonstrate the differences between a VDD approach to design complex engineered systems and a multi-objective approach to capture the Pareto frontier. Ongoing and future work is also discussed.

Preference Modeling for Government-Owned Large-Scale Complex Engineered Systems: A Satellite Case Study

2017 ◽  
pp. 513-529 ◽  
Author(s):  
Hanumanthrao Kannan ◽  
Syed Shihab ◽  
Maximilian Zellner ◽  
Ehsan Salimi ◽  
Ali Abbas ◽  
...  
Keyword(s):  
Large Scale ◽  
Preference Modeling ◽  
Complex Engineered Systems ◽  
Engineered Systems

scholarly journals Theoretical Foundations for Preference Representation in Systems Engineering

Systems ◽  
2019 ◽  
Vol 7 (4) ◽  
pp. 55
Author(s):  
Hanumanthrao Kannan ◽  
Garima V. Bhatia ◽  
Bryan L. Mesmer ◽  
Benjamin Jantzen
Keyword(s):  
Systems Engineering ◽  
Large Scale ◽  
Solution Space ◽  
Complex Engineered Systems ◽  
Preference Representation ◽  
Rigorous Framework ◽  
Stakeholder Preferences ◽  
Engineered Systems ◽  
The Relationship ◽  
Theoretical Foundations

The realization of large-scale complex engineered systems is contingent upon satisfaction of the preferences of the stakeholder. With numerous decisions being involved in all the aspects of the system lifecycle, from conception to disposal, it is critical to have an explicit and rigorous representation of stakeholder preferences to be communicated to key personnel in the organizational hierarchy. Past work on stakeholder preference representation and communication in systems engineering has been primarily requirement-driven. More recent value-based approaches still do not offer a rigorous framework on how to represent stakeholder preferences but assume that an overarching value function that can precisely capture stakeholder preferences exists. This article provides a formalism based on modal preference logic to aid in rigorous representation and communication of stakeholder preferences. Formal definitions for the different types of stakeholder preferences encountered in a systems engineering context are provided in addition to multiple theorems that improve the understanding of the relationship between stakeholder preferences and the solution space.

scholarly journals System design for inferring colony-level pollination activity through miniature bee-mounted sensors

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Haron M. Abdel-Raziq ◽  
Daniel M. Palmer ◽  
Phoebe A. Koenig ◽  
Alyosha C. Molnar ◽  
Kirstin H. Petersen
Keyword(s):  
Data Acquisition ◽  
Honey Bees ◽  
Large Scale ◽  
Physical World ◽  
Cluttered Environments ◽  
Robotic Mapping ◽  
Large Scale Data ◽  
Trade Offs ◽  
Large Numbers ◽  
Engineered Systems

AbstractIn digital agriculture, large-scale data acquisition and analysis can improve farm management by allowing growers to constantly monitor the state of a field. Deploying large autonomous robot teams to navigate and monitor cluttered environments, however, is difficult and costly. Here, we present methods that would allow us to leverage managed colonies of honey bees equipped with miniature flight recorders to monitor orchard pollination activity. Tracking honey bee flights can inform estimates of crop pollination, allowing growers to improve yield and resource allocation. Honey bees are adept at maneuvering complex environments and collectively pool information about nectar and pollen sources through thousands of daily flights. Additionally, colonies are present in orchards before and during bloom for many crops, as growers often rent hives to ensure successful pollination. We characterize existing Angle-Sensitive Pixels (ASPs) for use in flight recorders and calculate memory and resolution trade-offs. We further integrate ASP data into a colony foraging simulator and show how large numbers of flights refine system accuracy, using methods from robotic mapping literature. Our results indicate promising potential for such agricultural monitoring, where we leverage the superiority of social insects to sense the physical world, while providing data acquisition on par with explicitly engineered systems.

scholarly journals Android-Based Quiz Game Development Using Quizizz for Fourth Grade Students at SDN Catak Gayam 1 Mojowarno

2021 ◽  
Vol 2 (1) ◽  
pp. 46-54
Author(s):  
Risky Tri Amelia ◽  
Muhammad Nuruddin
Keyword(s):  
Large Scale ◽  
Fourth Grade ◽  
Student Response ◽  
Learning Activities ◽  
Student Interest ◽  
Design Development ◽  
Game Development ◽  
A Value ◽  
Fourth Grade Students ◽  
Expert Validation

Developments in the field of technology, especially education, are very influential in life. Educators as one of the main factors in supporting the quality of education must be able to utilize the types of media in an effort to carry out learning innovation strategies. The type of media that can support learning activities is the androidbased quiz game media using quizizz. This quiz game research is a development research. The android-based quiz game using quizziz has the purpose of knowing the design of android-based quiz game development using quizizz, the application of android-based quiz game products using quizizz, and the effectiveness of androidbased quiz games using thematic subjects. This research procedure uses a 4D model, namely define, design, development, and dissemination. SDN Catakgayam 1 Mojowarno was the location chosen to carry out research on a large scale, with 15 students enrolled in the 2020/2021 academic year. The techniques used in this study include media expert validation, material expert validation, RPP expert validation, student response expert validation, and documentation. Analysis of the data used is descriptive analysis. The results of the research on the application of quiz games obtained a total score of 87% which was validated by media experts, material experts and RPP experts. The validation contains media expert validation with a value of 92% which is very good, material expert validation 84% which is very good, RPP expert validation gets a score of 86% which is very good. Meanwhile, the effectiveness of the android-based quiz game obtained a total score of 82% which included student understanding with a value of 81.6% which was very good and student interest obtained a score of 82.5% which was very good. So it can be concluded, that an android-based quiz game using quizizz is stated to be very effective in supporting the learning activities of fourth grade students at SDN Catakgayam 1 Mojowarno.

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