If you want to strike the balance between having sufficient staffing to react as needed and doing so economically, this white paper will be helpful. Industry studies indicate that 80% of a typical help desk budget is salary, so staffing appropriately has a major impact on the bottom line.
The common Erlang formulas from queuing theory fall short because of the wide diversity of help desk entry points (call, fax, email, web, walk-ins, and pages).
Using the detailed formulas and methodology presented in this paper, you will be able to calculate the relationship between staffing levels and customer support levels. First, the paper looks at call center flow models to see how the organizational structure affects costs and program performance. Secondly, call volume, time to process a call, and time to resolve a call are used to determine the average number of staff required for a given call volume. A 70% utilization rate is a good starting point, since the inflow of random calls requires some slack capacity.
This is an outline of the White Paper:
Call Flow Design - Understanding the Different Strategies
Financial Impact of the Various Models
How Many Help Desk Staff Are Required For Your Call Volume?
Appendix A: Cost Calculations for Typical Call Flow Support Models
Appendix B: Gross Staffing Level Calculation Worksheet
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