Simulation versus other mathematical modelling techniques – Taranto Consultancy

Simulation versus other mathematical modelling techniques

Interaction of Random Events

Some other mathematical tools can mange to effectively model a steady state scenario but only simulation lets you build in random occurrences such as a machine breaking down and identify the effects of this further down the line. The more complex the scenario is, the less alternative solutions are able to deal with them and simulation becomes the only answer.

Non Standard Distributions

Many mathematical techniques force the model builder to describe a situation as an approximation, it takes and average of 5 minutes to serve each customer; in real life this isn’t the case: it takes 3 minutes to serve the customer if they have 4 items, it takes 7 minutes if they have 20 items. Approximating means results such as resource utilization time, customer waiting time are all inaccurate. Only simulation gives you the flexibility to describe events and timings as they actually are in real life. In many cases using averaged values gives misleading results as the system or operation never sees the extremes and is therefore never challenged: many operations can cope well with the ‘average activity’ but fail completely when significant, but credible, deviations occur.

Generating Ideas

Simulation provides a vehicle for a discussion about all aspects of a process. The generation of rules and data collection processes force you to consider why elements work in a certain way and if they could work more effectively. It also brings to the surface inconsistencies and inefficiencies, especially between different sections of a process that work independently.

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