The back end is not involved in the transaction until the customer submits his or her order. WebSphere coordinates transactions between the Versant and enterprise databases. This is how our VEC adds value, by enabling developers to leverage their middle tiers so they can extend their existing systems for new applications. VEC serves a variety of industries E-commerce companies are a key growing customer segment for Versant, but the VEC can bring benefits to other industries as well. For claims that must be processed the following work day, EJBs read data from DB2 and create persistent objects in Versant.
Policy holders submit claims over the Internet.
Simple claims are handled by EJB rules for self-processing, and data for complex claims is updated to DB2. As claims adjusters adjudicate claims, the resolution is committed into Versant and exported nightly into DB2. In another example of the VEC's use, consider the increasingly popular information portal. Large, distributed corporations tend to have many different information systems, with database systems that are not integrated. Suppose the company wants to make this information available to all its locations and must show informational views that span its multiple systems.