What if we wanted to create an interface to interests? Let's build an application enabling any number of people to ask and/or answer questions. Our users will join the community server, see a list of open questions and answers to those questions, and get real-time updates whenever a new question or answer is added. There are two key activities to model:
- Each client must be notified whenever another client asks a question or posts an answer
- A client can ask questions or supply answers
Where would the greatest amount of change happen in a large group of simultaneous contributors to this community?