You are designing smartcontract based exchange. That would be good.
But when a user submit "bid" or "offer", it is only 1 side of a contract. How will you match up the parties to actually create a full transaction?
Will you show the depth of "buy" and "sell" orders?
What happens if I want to buy or sell on the market?
How will you stay in business with no fee? Get the money from the ICO?
Hello, exchanges like etherdelta operate similarly as we will operate
however they charge a fee to execute your order is that fee which we will not charge. Network charges will normally be charged.