More and more of this type of expertise sharing will most likely exist on the Net over time. As we start to disassemble expertise and sell it, we will also need ways to assemble it in coherent ways for the user. DICA explores this problem area. AG2 is designed for an organization or a community of practice. It consists of two parts.
Users browse the database to answer their question.
If, however, the answer is not present or the user does not understand, he can invoke the back-end. Answer Garden 2's back-end includes a number of distributed components, but those for getting an answer are of especial interest here. If the user cannot find the answer, the system will route his question to help him get an answer. One possibility is to route the question to an appropriate human expert. The human expert can insert new question and answer into the information-base, thus growing it over time.