When considering open source, in most cases it is not the ability to modify source code that is attractive to customers, but the perceived cost savings that open source can offer. While the easiest and most obvious costs to calculate are acquisition costs, often overlooked are the far reaching effects that your choice of application server can have on other areas such as management, administration, training, hardware, and lost opportunity due to unexpected downtime. Learn the facts of TCO and performance in this comparison of IBM WebSphere Application Server to Redhat JBoss Enterprise Application Platform (JBoss EAP).