Drupal is well known and recognized CMS. But Drupal 8 is also a very powerfull framework that can be used to build business critical, entreprise class applications. 

Trough 3 concrete case studies from large organizations ( 5 Billion of revenues each) you'll learn : 

How Drupal can be used to build transactional digital applications
How manage external IT applications integration
How you can make your applications fly with headless decoupled Drupal & React.js
Why Drupal is better than Java / .NET or Symfony to build custom applications
Important points of transactionnal applications : offline mode, data management, service oriented archtiecture, performance, high availability, UX
Timeline, budgets and problems we've met during those projects.