Database Reference
In-Depth Information
Chapter 1. Creating
Basic
BPEL
Processes
Over a period of time, people are in the process of finding ways to reuse existing ap-
plications to build new applications that are cheaper and faster and achieve interop-
erability between applications. Loosely-coupled integration of existing applications is
required to achieve application agility for timely responses to the changing business
requirements. BPEL is one of the leading integration technologies to implement agility
for composite applications.
Evolution of web applications
Web applications can be created in multiple ways that depend on the business re-
quirements. There are four generations of web applications which are currently used
by the businesses. The first generation web applications were simply informational
and static in nature. The second generation web applications enabled interaction with
end users and dynamically presented and performed simple transactions online. The
third and fourth generation web applications are allowing businesses to perform com-
plex business transactions online that have increased the need for simplifying system
integration and reusability of existing enterprise applications with agility.
