README.md

Jakarta-EE-Petclinic

These Demo Application are planned to be a "Rosetta Stone" for compare OOP Web Application Frameworks like

• Jakarta EE (Java)
• Java EE 7
• Java EE 6
• Symfony (PHP)
• Django (Python)
• Flask with SQLalchemy (Python)
• Spring Petclinic (Java)
• Fluid,Extbase (TYPO3-CMS, PHP)

Via OOA and OOD the functional Requirements should be extracted and divided from the nonfunctional Requirements of the Frameworks:

• Requirements Engineering (OOA,OOD,UML)

• Most of the Frameworks compared here use Model-2 MVC Pattern for the Web/Presentation-Tier but Jakarta EE uses JSF (Java Server Faces), a Component Based Web/Presentation-Tier.

This Specification should also serve as Specification for non-Web Frontends like:

• Qt (C++)
• Qt (Python)
• Java Swing

Why Petclinic?

• The Domain Classes show all relationships like one-to-many (1:n), many-to-one (n:1) and many-to-many (n:m)
• It is simple enough but yet it shows more than just the CRUD Use Cases (Create, Read, Update, Delete) of most Demos and Training Examples.
• You can think of it as smallest complete Web App with the usual things to solve.