Novel Simulation-Based Learning Modules for Teaching Database Concepts

Conference Paper
S. G. Ozden, O. M. Ashour, and A. Negahban
ASEE Annual Conference and Exposition
Publication year: 2020

This paper presents novel immersive simulation-based learning (I-SBL) modules as an alternative active-learning method for teaching and learning fundamental concepts related to database de-sign. I-SBL involves a 3-dimensional simulated environment that resembles a real-world system.Students can navigate through the simulated environment (in low- and high-immersion modes),observe and understand the underlying dynamics, evaluate the effect of the changes on the system,and learn by doing. The use of such modules is especially important when access to the real system is limited or impossible due to geographical barriers and/or regulations and safety considerations.We assess the impact of the proposed approach by implementing a sample I-SBL module in an undergraduate database class. The study involves two groups of students: control and test groups.Students in the control group complete a traditional problem-based learning (PBL) assignment,while the test group uses the I-SBL version of the same assignment. The assessment data collected include demographics, prior preparation, motivation, usability tests, and pre/post quizzes to mea-sure knowledge gain. Statistical analysis of the results suggests that I-SBL performs at least as wellas PBL. The results also provide important insights into the effective design and implementation of I-SBL.

Environmental improvement of operating supply chains: A heuristic optimization approach for the cement industry

Conference Paper
S. G. Ozden, M. C. Velez-Gallego
IISE Annual Conference 2017, Pittsburgh, PA
Publication year: 2017

The   problem   of   improving   the   environmental performance of a supply chain without entailing excessive cost is becoming a frequent problem as
companies face an increasing pressure from governments and customers for reducing the environmental impact of their activities. As the environmental improvement of an operating supply chain implies not only technology upgrading decisions, but also decisions regarding the structure of the supply chain itself; deciding on what strategy to follow is a complex task. The aim of this work is to provide a bi- objective solution approach for finding such strategy so that both the environmental and financial goals are best met.

WEBASRS – A Web-Based Tool for Modeling and Design of Abstract Unit-Load Picking Systems

Conference Paper
Jeffrey S. Smith and Sabahattin Gokhan Ozden
11th International Material Handling Research Colloquium
Publication year: 2010

This paper describes a web-based tool that supports the modeling and design of abstract unit-load picking systems.  The term “abstract” implies that the model is not specific to any equipment or vendors’ products, but, instead, focuses on the generic system components such as pallets, racks, slots, forklifts, cranes, etc. that comprise typical unit load picking systems.  The objectives of the tool are to support the design of an AS/RS based or a manual forklift-based picking system based on a set of design parameters and to be able to convert from an AS/RS design to a flat warehouse design and vice versa.  The research objective is to design the formal model (the data structure and operational description) that supports the conversion from one type to the other and supports the generation of static and dynamic analysis models and the recording of the analysis results.  The web implementation uses a mix of XML, HTML, JavaScript and PHP and implements two existing analysis methodologies from the literature.