_Follow along with this video:_ --- ### Context from Documentation Ok, we've scoped things out. Let's start with step 1 of `The Tincho` - Reading the documentation. What we've been provided is a little sparse - but read through the README of [**Puppy Raffle**](https://github.com/Cyfrin/4-puppy-raffle-audit). <details> <summary>About Puppy Raffle</summary> <p align="center">  :br # Puppy Raffle This project is to enter a raffle to win a cute dog NFT. The protocol should do the following: 1. Call the `enterRaffle` function with the following parameters: 1. `address[] participants`: A list of addresses that enter. You can use this to enter yourself multiple times, or yourself and a group of your friends. 2. Duplicate addresses are not allowed 3. Users are allowed to get a refund of their ticket & `value` if they call the `refund` function 4. Every X seconds, the raffle will be able to draw a winner and be minted a random puppy 5. The owner of the protocol will set a feeAddress to take a cut of the `value`, and the rest of the funds will be sent to the winner of the puppy. </details> Above we see a pretty clear description of the protocol and it's intended functionality. What I like to do is open a `notes.md` file in my project and summarize things in my own words. ``` ## About > The project allows users to enter a raffle to win a dog NFT. ``` Use this notes file to record your thoughts as you go, it'll make summarizing things for our report much easier later. Let's take a look at some of the code that powers the expected functionality in the next lesson.