A knowledge market website is a place where users can post questions to the community and look for answers. A question can be a part of one or more topics that can also be subscribed to by the individual users. A good example of such a website is www.StackOverflow.com, which many of us might already be using. Let's try to follow the same approach we did for our first use case.
The technology stack for this application is much the same as the previous one, except a few. Have a look at the following list:
Programming language: Java (you can choose your preferred language)
Database: DynamoDB
Web server: Tomcat (Tomcat can be hosted on the AWS EC2 instance)
Data Archiving: AWS S3
We can add other AWS components like SNS to send notifications to users if they see any activity on the question they had asked or answered.
