We have the purpose to define some architectures for web application development. To do this we ar going to base in a extremely easy example, which help us to see how to develop with the choosen technologies and how to integrate them. For a develeoper is e¡very important to see somthing runs ever it is very easy. After he can marchal the own application complexity. Title: Courses Certificates Definition: Application which will certificate the finished course by a person in our academy, school.lebrijo.com. Requirements:

• Through a form the user be able to ask for the certificates by a NIF (Spanish Fiscal Identify number).
• Through a Web Service , third applications be able to check how many courses a person has finished with a NIF.
• It will generate this list of courses in PDF and XLS formats (Reports).
• Security: ensure the data access with a user/password credential
• Every request must be registered in a table called REGISTRY, to know when and whom we certificated what.