That are some excellent Questions!
here are my contracts…
the only one that matters is the MasterData.sol file.
i will keep it simple… i willt use the functions to deploy elements, fill them with fake data and do some of the other implemented stuff ( accesmanagement, rateing and signings). Currently I am working on the concept so feel free to make same suggestions:
The basic plan is to deploy Elements and connect them so that they represent corporations or entire supplychain ( I like the term supply networks). I will measure the time for deploying 10 Elements, fill them with data and connect them to each other. then i repeat with more Elements untill it breaks or take more than 5min or so.
After that I will do some rate, signing and data transactions to simulate usage.
i will messure the gasUsage and the time this will take.
I think there is no need to test how much data i can read from some nodes because if needed everyone can run its own node.
And in the end I will compare Ropsten, Kovan( if I the KEth) and evan.network
Do you have some tipps connect to Kovan? My current plan is to use infura but iam not sure if this maybe become a bottleneck