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Questions & Answers
Q: I was wondering if there is a possibility to have a customized version, or at least be able to set some of the other variables. I am looking to determine how many service points are needed (based on a single queue/multiple service points model) that meet the following KPI baseline - Average Waiting Time: 10 minutes - Zero Occurences where customers wait for more than 30 minutes - 95% of all customers are served in less than 15 minutes I also would like to maximize the utilization of the service points.
A: The other "variables" are all calculations based on the inputs provided so they are not really variables at all. If the model was redesigned the inputs could be swapped for some of the calculations ie input average waiting time etc however this would be a substantial rework and it would probably be best to simply develop a queuing formula structure to suit your specific needs. You could achieve a similar result by adjusting current variables ie manually change the Number of Service points to find the best Average Waiting time required (as service points are integers the actual waiting time possibilities may never closely approach your required value). The zero occurrences and 95% requirements do not fit within standard formulation theory (more thought required). Maximising utilisation can be calculated by simply setting the Cost of Waiting to 0, this will usually result in a decrease in Service Points but an unacceptable Customer Waiting time. If you wanted to explore the model functionality we do offer Commercial licenses providing an unprotected software version allowing you to to view the formula applied, access cell contents to enhance your knowledge of software operation (macros remain protected) and undertake minor refinements (ie headings etc). In this format application sheets are unprotected, the workbook itself and the Terms and Conditions and Instructions sheets remain protected to maintain licencing and intellectual property rights notification. You can upgrade from a Non-Commercial license to a Commercial license at https://bizpep.com/upgrade.html . To access the source code of our software including the visual basic code (macros) a Source License is required. This license allows you to modify and adapt all components of the software to meet your specific needs. Source licensing fees are 3 times Commercial licensing fees. Source Code License details are available at https://bizpep.com/SourceLic.html . Please note that Bizpep retain full copyright and intellectual property rights at all times. Hope this helps.