* trigger ->    1.internal (internal trigger for use apps (scroll) )

                2.extarnal (external trigger for use apps (add or offer) )


* Action  ->   time  (time need to develop)
               money (money need to develop)
               social demand (everyone using it)

* Reward  ->  hunt
              self reward


* investment -> like email account



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Business Forecasting :

what will happened in future of this business.

sales trends :

what new running in this business.