a chat room where new messages should appear automatically, without the client having to reload the page being viewed, and where only the new message and not the entire new page is transmitted
a search index and query processor that makes documents quickly accessible by topic and ranks them according to their relevance to key concepts specified by the user
a distributor taking orders from customers through a web services interface and then placing the individual orders with several manufacturers through web services interfaces
an application that authenticates a person at the Web interface and then uses the provided credentials to transparently authenticate the person at all other applications within the service
a rule that compares the output torque rating of an engine to the input capacity of the transmission, and automatically upgrades the transmission when its capacity is exceeded