A simulation-based decision support system for workforce management in call centers

Abstract

Workforce management is critical in call centers, where thousands of calls are handled by hundreds of agents every day. In a call center, where the call arrival rates tend to fluctuate during the day, the agent allocation plans are required to be planned flexibly and the number of operating call center agents ought to be updated whenever needed, in order to keep the customer satisfaction level over a predefined level. Workforce plans are usually generated by the use of queuing models that are based on Erlang C calculations. However, they have assumptions that oversimplify the real system and jeopardize the validation of the model. At this point, the simulation models, which do not have such restrictive assumptions, are effective in calculating the required number of agents for each time period and measuring the performance of a given shift schedule. In this study, a simulation-based decision support system (DSS) is developed that runs on real-time data for one of the largest call centers in Turkey. The graphical user interfaces (GUIs) are designed in accordance with the man–machine interaction consideration to increase the usability, functionality and effectiveness of the DSS. It is shown that the combination of the advantages of simulation with a flexible and user-friendly DSS environment provides more effective and efficient workforce planning and performance reporting in call centers.

Keywords

simulation call center workforce management decision support system

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References

Bapat

Pruitte

Jr . Using simulation in call centers. In: simulations- and automations-technologie GmbH, 1999.

Gans

Koole

Mandelbaum

. Telephone call centers: tutorial, review, and research prospects. Manuf Serv Oper Manag 2003; 5: 79–14.

Bouzada

MAC

. Scenario analysis within a call center using simulation. J Oper Supply Chain Manag 2009; 2: 89–103.

Örmeci

Aksen

Erdem

. Workforce planning in call centers. Research Project Report (TUBITAK 106M175), 2008.

Akşin

Armony

Mehrotra

. The modern call center: a multi- disciplinary perspective on operations management research. Prod Oper Manag 2007; 16: 665–688.

Saltzman

Mehrotra

. A manager-friendly platform for simulation modeling and analysis of call center queuing systems. In: proceedings of the 2004 winter simulation conference, 2004, pp.466–473.

Avramidis

L’Ecuyer

. Modeling and simulation of call centers. In: proceedings of the 2005 winter simulation conference, 2005, pp.144–152.

Avramidis

Gendreau

L’Ecuyer

. Simulation-based optimization of agent scheduling in multiskill call centers. In: 2007 Industrial Simulation Conference, 2007.

Chokshi

. Decision support for call center management using simulation. In: Proceedings of the 1999 Winter Simulation Conference, 1999, pp.1634–1639.

10.

Tanir

Booth

. Call center simulation in Bell Canada. In: proceedings of the 1999 winter simulation conference, 1999, pp.1640–1647.

11.

Miller

Bapat

. Case study: simulation of the call center environment for comparing competing call routing technologies for business case ROI Projection. In: proceedings of the 1999 winter simulation conference, 1999, pp.1694–1700.

12.

Saltzman

Mehrotra

. A call center uses simulation to drive strategic change. Interfaces 2001; 31: 87–101.

13.

Lam

Lau

RSM

. A Simulation approach to restructuring call centers. Bus Process Manag J 2004; 10: 481–494.

14.

Takakuwa

Okada

. Simulation analysis of inbound call center of a city-gas company. In: proceedings of the 2005 winter simulation conference, 2005, pp.2026–2033.

15.

Atlason

Epelman

Henderson

. Call center staffing with simulation and cutting plane methods. Ann Oper Res 2004; 127: 333–358.

16.

Cezik

L’Ecuyer

. Staffing multiskill call centers via linear programming and simulation. Manag Sci 2008; 54: 310–323.

17.

Gulati

Malcolm

. Call center scheduling technology evaluation using simulation. In: proceedings of the 2001 winter simulation conference, 2001.

18.

Chong

. A simulation-enabled DSS for allocating check-in agents. INFOR 2003; 41: 259–273.

19.

Erdem

Gedikoğlu

. A DSS for shift design and workforce allocation in call centers. In: proceedings of Portland international conference on management of engineering and technology (PICMET), 2006, pp.1279–1289.

20.

Hanna

Ahuja

Winston

. Developing spreadsheet-based decision support systems. Dynamic Ideas, 2007.

21.

Rockwell Automation. Arena contact center user’s guide, Rockwell Automation Technologies, 2006.

22.

Basarir

. A simulation based decision support system for workforce management in call center centers. MA Thesis in Management Information Systems, Boğaziçi University, 2011.