We will finally finish our DAO smart contract! So far we can vote for investment proposals, but after the voting time is over we need to actually execute the investment proposal, by sending some ether to the recipient address of the proposal. We will also use for the first time an internal function and see how it can be used for critical features. Finally, we will do a manual test of the smart contract in Remix. You will understand the whole workflow / process of the DAO smart contract with a live demo!