Thin-Yin LEONG Practice Associate Professor School of Information Systems, Singapore Management University. email: tyleong@smu.edu.sg | tel: (65) 6828-0916 | room: SIS 4052 | 80 Stamford Road, Singapore 178902.

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Research   Current Interests Spreadsheets as decision-support systems The spreadsheet is a common tool in the modern office, but however it’s power and flexibility are really unappreciated. Much can be done to identify and exploit unique features not available in other platforms, and make them in the form more readily accessible to the user. It can be a tool of choice for use in developing decision-support systems and system ("proof-of-concept") prototypes. End-user software engineering and computing More and more computing power and user-friendly development environment are available to end-users for their daily work. However, the methodologies and tools for end-user software engineering are still very much lacking. This has resulted in errors in systems developed and the difficulties to retain and maintain such systems. The interest here is to develop the necessary concepts and methods to better support the end-user developer. Applications of IT in Operations Management A realistic look as what works and don’t in the application of information systems and technology for Operations Management, whether in manufacturing or services. The interest in the understanding what technology has to offer and where they can be appropriately applied, and how best to make use of available information to reduce cost and improve service performance. Applications of IT in Supply Chain Management & Logistics Supply Chain management expands on the foundation formed from the research work done in manufacturing and logistics. It differs from traditional logistics in that integration among external players is important and increasing focus on creating business value rather than cost management. Conceptual design of Business Processes Process research has been either in finding optimal solution to high-level monolithic conceptualizations (in operations management) or detailed business work processes design and evaluation (in information systems development). An interesting area of research, bridging these two extremes, is in looking at proper framing and decomposition of large real-world problems: hierarchical modeling of sub-problems with overlapping time horizons, linking constraints, feedback mechanisms, and incremental re-planning. This work is into finding and justifying good and efficient heuristics and their incorporation into actual operations systems.   Recent Publications (2004 - 2008) LEONG, TY and MLF CHEONG 2009. Business Modeling with Spreadsheets, McGraw-Hill. LEONG, TY and MLF CHEONG 2009. "Teaching Business Modeling using Spreadsheets," INFORMS Transactions on Education 9(1). LEONG, TY and MLF CHEONG 2009. "Spreadsheet Modeling of Hotel Room Sales and Demand Distributions Estimation, " Decision Sciences Journal of Innovative Education, forthcoming. LEONG, TY and MLF CHEONG 2008. "Spreadsheet Modeling of Equipment Acquisition Plan," Decision Sciences Journal of Innovative Education 6(2). LEONG T-Y and C-H CHU 2007. "Wireless network design: a space-filling curve approach," International Journal of Mobile Network Design and Innovation 2(3-4):180-189, Inderscience. LEONG T-Y and C-H CHU 2007. "Wireless Networks Design: A Space-filling Curve Approach ," 6th International Conference on Information and Management Sciences, July 1-6, Lhasa, Tibet, China. LAU HC, S-F CHENG, T-Y LEONG, JH PARK, ZY ZHAO 2007. "Multi-period combinatorial auction mechanism for distributed resource allocation and scheduling," IEEE/WIC/ACM International Conference on Intelligent Agent Technology (IAT), Nov: pp407-411, San Jose, USA. ZHAO ZY, T-Y LEONG, SS GE and HC LAU 2007. "Bidirectional Flow Shop Scheduling with Multi-Machine Capacity and Critical Operations Sequencing," IEEE Multi-Conference on Systems and Control, October, Singapore. LEONG T-Y and HC LAU 2007. "Generating Job Schedules for Vessel Operations in a Container Terminal," 2nd Multidisciplinary International Conference on Scheduling: Theory and Applications (MISTA), August, Paris, France. LEONG, TY 2007. "Monte Carlo Spreadsheet Simulation using Resampling," INFORMS Transactions on Education 7(3). LEONG, TY 2007. "Simpler spreadsheet simulation of multi-server queues," INFORMS Transactions on Education 7(2). CHU CH and TY LEONG 2006. "A Spacefilling Curve Heuristic for Wireless Networks Design," accepted for presentation at The Decision Science Institute annual conference at San Antonio, Texas. BISH, CHEN, LEONG, NELSON, NG and SIMCHI-LEVI 2005. "Dispatching Vehicles in a Mega Container Terminal," OR Spectrum 27(4):491-506. LUI PS, TAN TS and LEONG TY 2004. "Moving People, Goods, and Information in Singapore: The Sea," chapter 17 in Moving People, Goods, and Information edited by RE Hanley, Routledge Publications.

email: tyleong@smu.edu.sg | tel: (65) 6828-0916 | room: SIS 4052 | 80 Stamford Road, Singapore 178902.