2. collect information that affects the issue of Case study, which contains recordings by timer, how much information is enough to replace a problem of fact properly
3. To create a mathematical model. Under the terms and conditions that are available to use as a representative of the problem
4. Validation of mathematical model to prove that this model can be used as an agent of a fixes the problem
5. Begin (solve), to find out the answer from the
.
การแปล กรุณารอสักครู่..
![](//thimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)