We chose Compose a Tweet as our main scenario,
1- To compose a tweet the user must click the button Tweet.
2- A “Compose a tweet” view will appear, then the user will write the tweet, add any media, GIFs, emojis or polls. Meanwhile, the system will calculate the characters to ensure that the characters limit is not exceeded.
3- The user click Tweet to post the tweet, or Cancel to discard the tweet.