Installing WebSphere® Application Server
The IBM® WebSphere® Application Server installation consists of two parts: IBM® Installation Manager and the WebSphere® Application Server itself.
IBM® Installation Manager
The IBM® Installation Manager is used to assist in the installation of WebSphere® Application Server and the corresponding fixpacks. You can go to IBM Installation Manager Knowledge Center for more details.
IBM® WebSphere® Application Server
Since the HCL Docs components are WebSphere-based applications, you must install WebSphere® Application Server, create profiles and servers for each of these applications: Editor Application, Editor Proxy, Document Format Conversion Application, and Viewer Application.
The required minimum supported version of WAS is 8.5.5.4. Find out how to download and install WAS 8.5.5.4 and later fixes by referring to: http://www.ibm.com/support/docview.wss?uid=swg27038625. More details can be found in WebSphere Application Server Knowledge Center.