![WebSphere Commerce Developer](../../com.ibm.commerce.base.doc/images/ngdev.gif)
![Windows](../../com.ibm.commerce.base.doc/images/ngwin.gif)
Installing Rational Application Developer or Rational Software Architect
You must install Rational Application Developer before you install WebSphere Commerce Developer.
You can install:- Deprecated featureRational Application Developer
Version 7.5.5.1, or a higher Version 7.5 fix pack
The required minimum level of Rational Application Developer is Version 7.5.5.1, but you should install the latest version.
Rational Application Developer Version 8.0.4.2 iFix 1, or a higher Version 8.0 fix pack