Flow sheet to define a strategy

The different steps are numbered. At each step there are several points which should be considered. Breakpoints are marked with Q. 

6 Evaluate the screening experiment and determine the significant variables, 

Q (a) If this experiment gives a satisfactory result which fulfils the criterion of success, then repeat this experiment to make sure that it is reproducible. The goal has been reached. Stop and write a report. 

If the result is promising but not satisfactory, and experimental conditions for the best result obtained during the search are close to the explored domain, then proceed to 8. 

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