You have a speaker, enough audience, and a moderator. The Q&A session should go smoothly, right? Maybe, but if you want to be sure that you'll have a high-quality event, a simple Q&A session is not enough. you should have a Digital Catalog to connect with users and provide them live feed and can play quiz over the application. 2-way communication helps a user to connect with the application owner and can clarify their doubt on the go. This feature is useful for education purpose, marketing in terms of quiz in the same field and query handling of a user. P.S.: All the images and content has been taken from Internet for education and demo purpose. All Copyright belongs to respective owner.