“Publish and Subscribe” is a technology developed by market data vendors
such as Reuters for efficiently broadcasting large amounts of data to a
large user base. These networks are largely one-way: data out to the
“Publish and Subscribe” is gaining currency as an effective way to model
business-events in lower volume real-time groupware applications.
What is presented here is a specific design strategy forgroupware. Implementations used by
market data and database vendors are somewhat different.