Model This

When I first started modeling, my boss came to me and said “Model this…” and then proceeded to describe an area of the plant that he thought “might benefit from having a model”. Unfortunately there were no specific objectives beyond that.

To me, a new simulationist, that sounded like an ideal project. Nothing to prove… Nothing specific to evaluate… No one waiting on specific results (because none were asked for)… It even sounded like a good opportunity to learn how to model. But it was not.

“Model this” generally results in a useless project. A waste of time. Without clients or clear objectives, I could not know what to model. Without clear objectives, I had little motivation to learn how to model tricky situations; I instead tended to bypass them to work on aspects more fun or interesting. In fact, for the same reason I often did not even recognize modeling challenges, so I never learned to deal with them.

Moreover, when it was all done, what did I have to show for my time? Perhaps a cool-looking animation. It probably did not have many aspects of reality to it. Reality is driven by close interaction with the stakeholders – oops, I did not have any of them. Why should anyone waste his or her time sharing domain knowledge with me, when I was basically just modeling for fun?

And worse, after I “finished” the model, I was overconfident of my modeling skills – after all, I modeled everything I set out to model, right? Of course I was never forced to really verify and validate against the real system, so I never really had any idea how good the model really was.

Avoid “model this”. Always push for clear project objectives. More on that next time.

Dave Sturrock
VP Products – Simio LLC

Success in Simulation Introduction


We will be using this space to help each other become more successful in our simulation projects. We will be sharing information and initiating discussions that will prove interesting and helpful to both experienced and novice simulationists.

When I say “we”, it is because I cannot do this alone – I need active participation from the user community. Your comments, topic suggestions, and article submissions are welcome.

This blog is not about any particular product, nor is it intended to be in any way commercial or sales-oriented.

Success in Simulation is available to all simulationists in industry, service, military, academic and other application areas, as well as anyone who wants to become a simulationist or who just wants to learn more about simulation. While I intend to focus mainly on discrete event simulation, articles on the related fields of agent-based modeling, system dynamics, and emulation will also be included.

The articles will be intentionally be kept short for a quick read, and hopefully most will be written in an informal style for easy reading. I encourage you to subscribe to the RSS feed so that you will automatically receive new articles as soon as they are posted.

Dave Sturrock
VP Products – Simio LLC