thanks
By my point is how to simulate it? designing a particular block chain may be possible but how to test it? just imagine you want to store some files in cloud and use block chain to do that, now, how can we implement such a network?
That's up to you to decide. You figure out what you want done and then implement your idea and test it. There is no simulation here, it is just do and test and see if it works. The Testing occurs on your private blockchain so as to not spam one that people actually use.