This figure consists of a database icon labeled "Database" and four boxes labeled as follows:

The boxes are lined up in one row. The database icon appears above the boxes. Double-headed arrows link each box with the database icon, except for "Old Application Tier B: 1.5.3".

An arrow with a dotted line labeled "Cloned" links "Application Tier A 2.0" to "Application Tier B: 2.0 Cloned from AT A."

An arrow with a dotted line labeled "Configuration Parameters" links "Old Application Tier B 1.5.3" to "Application Tier B: 2.0 Cloned from AT A."