Installation prerequisites for DWA

Before you begin your product installation, prepare the installation and familiarize yourself with the components to install.
Important:
  • The Java™ Runtime Environment (JRE) must be installed on the server before you install IBM® Engineering Requirements Management DOORS® - Web Access (DWA) version 9.6.1 or later. The JAVA_HOME environment variable must be set to the path to the Java executable program; for example:
    C:\Program Files\IBM\Java8\jre
    For supported versions of JRE, see the System requirements for DWA.
  • If you upgrade DWA to version 1.5.0.1 or later, you can copy your old server.xml file to the new installation. If so, you must remove the reference to the Composite Application Framework (CAF) JavaScript library. Remove these lines from the server.xml file:
    <Context crossContext="true" debug="0" docBase="caf.war" path="/caf" reloadable="true">
       <Valve className="com.telelogic.dwa.catalina.valve.GlobalisationRequestInterceptor"/>
    </Context>
  • If you upgrade DWA to version 9.5.1 or later, you must also upgrade the interoperation server to the same version.
Installing DWA involves the installation of several discrete components.
Table 1. DWA components
Component Description
DWA server An adaptation of Apache Tomcat. Tomcat is an application server that runs Java servlets and renders web pages that include JavaServer Pages code.
DWA broker An adaptation of Apache ActiveMQ. ActiveMQ is an open source message broker that implements the Java Message Service (JMS).
IBM Engineering Requirements Management DOORS (DOORS) database server The server that stores the data that you access.
Interoperation server A DOORS client that you run from a command line.

Review the Installation roadmap for DWA as guidance to install, configure, and start DWA components in the correct sequence. See also DWA topology and minimum requirements, Modifying the core configuration file, and License options in DWA.


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