IBM WebSphere refers to a
computer software products in the genre of
enterprise software known as "application and integration
middleware". These software products are used by end-users to create applications and integrate applications with other applications. IBM WebSphere has been available to the general market since 1998.
IBM introduced the first product in this brand, IBM WebSphere Performance Pack, in June 1998. As of 2012 this original component forms a part of IBM WebSphere2 Application Server Network Deployment, which itself is one of many WebSphere-branded enterprise software products.