Pega Next-Best-Action Advisor application stack
An application stack is a set of applications based on Pega Platform that together create a software solution for your business.
The following figure shows the Pega Next-Best-Action Advisor application stack. Your applications inherit features from each layer, the top layer being your implementation application or applications.
![The application stack for pega next best action advisor 2 is built upon pega platform,
with your application on top.](https://docs.pega.com/sites/default/files/drupal/dita/out/991/strategic-apps-implementation/Content/Resources/Images/nbaa2.0-application-stack.png)
Previous topic Pega Next-Best-Action Advisor implementation prerequisites Next topic Pega Next-Best-Action Advisor implementation scenarios