Software is now increasingly provided as a service; in other words, it is now
offered as a hosted application that users access through Web browsers. Many
companies see this as an effective way of outsourcing some of their IT
requirements. However, they face an increasing number of integration issues
as part of this strategy. Many are turning to ESBs for a solution.
As the use of Software as a Service (SaaS) increases, there is a growing
realization that companies making use of SaaS applications need to integrate
them within their overall IT infrastructure. This means that data needs to
flow between the SaaS applications and their other IT systems. SaaS providers
typically provide programmatic interfaces to facilitate this.
From the SaaS providers' perspective, there is a danger that the overhead of
achieving such integrations could take away from the core values of t... (more)
Service Oriented Architecture (SOA) projects have evolved. A couple of years
ago it would have been sufficient to demonstrate connectivity between systems
that were previously isolated. Nowadays these connections must provide
guarantees of reliability, security, and performance. Delivering on such
requirements presents a number of challenges.
Not all of the challenges faced during an SOA project are technical. However,
it's the technical requirements that are best understood and most often
explicitly stated as requirements. Other issues relate to the changes
required in the way ... (more)
The concept of a Service Oriented Architecture (SOA) existed long before the
current set of Web Services standards. However, it's the widespread adoption
of these standards that has enabled the idea of SOA to enter the mainstream
and to start delivering the level of connectivity and savings it has promised
for so long. Now that SOA has hit the mainstream, some are attempting to show
how SOA can be successfully implemented using pre-Web Services technologies.
This article will show why these approaches fail to fulfil all aspects of SOA
and become exercises in rediscovering why SOA... (more)
James Pasley is chief technology officer at Cape Clear Software. As CTO, James is Cape Clear's lead technologist and is responsible for ensuring that Cape Clear's enterprise service bus (ESB) technology supports the evolving needs of the company's global customer base. Contact him at james.pasley@capeclear.com.
Scott Sellers
Anthony Franco
Daniel Morris
Wayne Walls
Niki Acosta
Jereme Hancock
Oren Michels
Marvin Wheeler
Douglas Kim
