Migrating to an Enterprise Service Bus (ESB) is a bigger decision than many companies realize. It creates the opportunity for central management and access points for all the services available in the enterprise. When determining the need and the method for enabling an ESB for services, there are several important considerations. The ESB can act as a simple access point in terms of acting as a proxy to hosted web services; it can orchestrate calls to many web services through languages like BPEL, and it can also house the web service code itself.
