Avoid Mixing Custom Applications with E-Business Suite Environments

The E-Business Suite technology stack is extensive. Many components are distributed across the EBS database and application tiers.  These include the Oracle Database, Oracle HTTP Server, Oracle Forms and Reports 10g, Oracle Containers for Java, and many others.

Internal EBS components are tightly-coupled

Most of these components are not "user-serviceable" in the conventional manner.  They're tightly integrated with the E-Business Suite, with deep dependencies, custom configuration files, and dedicated configuration management utilities that are designed specifically for the E-Business Suite.  

The internal E-Business Suite technology stack is relatively tightly-coupled: you generally cannot change one thing without understanding how those changes will affect other components.