1 - as far as my experince, the general strategy which works in most of the fields is to observe,understand find out(درک و کشف و شهود). 2 - To build or use a framework or tool these are key facotrs to consider: 1.usability : it should work in the easiest form. 2.simpilicity: working with it should be easy for everybody. 3.beauty : elegant.
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