Legacy systems are a core asset at many organizations. These legacy systems
have been around for decades and have a very critical impact on day to day
business processes. However, owing to a variety of reasons, these legacy
systems have high TCO and represent a bottleneck towards the emergence of an
agile IT portfolio. In this article we'll focus on a variety of options that
may be available for the seamless integration of legacy systems with an
enterprise IT portfolio. We converge on legacy enablement using Web services
as a viable option towards achieving an integrated, agile architecture that
leverages open standards for communicating with legacy systems. We also
evaluate alternative options of legacy integration and identify tools that
may be used to simplify integration with legacy systems.
Overview and Pain Points of Legacy Systems
At the core of many applicati... (more)