Processes and Modeling – a quick observation

Is it not somewhat obvious to the folks reading this blog that this:

simplified ER Process


Is the same thing as this:

GLMWhile I might be skewered for oversimplifying the process (and it is oversimplified – greatly), the fundamental principles are the same.  LOS for those not inured in the definition is Length of Stay, also known as Turn around Time (former is usually in days, latter in minutes or hours)

Out of curiosity, is anyone reading this blog willing to admit they are using something similar, or have tried to use something similar and failed?  I would love to know people’s thoughts on this.