Java Reference
In-Depth Information
FIGURE 1-3. Web Tier and Java EE Applications
Business Components
Business code, which is logic that solves or meets the needs of a particular business do-
main such as banking, retail, or finance, is handled by enterprise beans running in either
the business tier or the web tier.
Figure 1-4
shows how an enterprise bean receives data
from client programs, processes it (if necessary), and sends it to the enterprise information
system tier for storage. An enterprise bean also retrieves data from storage, processes it (if
necessary), and sends it back to the client program.
