• design, implement, and test moderate size Java programs (in particular, for programs that
  use inheritance, are distributed into packages, and
  use external libraries)
  



• design, implement, and test programs for XML manipulation
  in Java (in particular programs using JDOM)
  

The prerequisites can for example be obtained by having
followed the course <a href=\"http://www.itu.dk/KursusBase/index.php?body=VisInfo&id=1717\">Introductory Programming (Grundlæggende Programmering), done a programming intensive project
and/or follow-up course, and, by having
followed the course <a href=\"http://www.itu.dk/KursusBase/index.php?body=VisKursus&id=1675\">XML Processing. 

• describe fundamental principles and concepts in the
  design and implementation of web applications
  and web services
  



• describe and compare Java-based technologies such as servlets, JSP, and JWIG, for developing web applications and services
  



• describe web services technologies and architectures
  for application-to-application web services based on
  XML technologies such as \"XML over HTTP\", SOAP, WSDL, and UDDI
  



• implement web applications using servlets, JSP, and
  JWIG
  



• implement application-to-application web services
  based on XML over HTTP, and SOAP and WSDL
  

Many current applications are deployed as either web
applications or web services.

An (interactive) web application
is an application with which the user interacts via
the World Wide Web (for example, the <a href=\"http://www.google.com/\">web interface
to the Google search engine).

An (application-to-application)
web service is a component that can be invoked,
primarily by other components or applications,
via the World Wide Web and which
communicates primarily via XML-based message formats
(for example, the <a href=\"http://www.google.dk/apis/\">Web Services interface to the
Google search engine).

In the course we study techniques to develop such web applications and services. The course consists of three main parts:

• Core Java-based technologies for web application development:
  
  
  
  • servlets
  
  
  • Java Server Pages (JSP)
  
  
  
  



• Novel techniques for easier and safer web application
  development:
  
  
  
  • JWIG (a Java-based framework which allows static
    guarantees)
  
  
  • PowerForms (declarative specification of HTML
    form constraints)
  
  
  
  



• Application-to-application XML-based technologies:
  
  
  
  • XML over HTTP
  
  
  • SOAP, WSDL, and UDDI
  
  
  
  

The purpose of the course is not to teach the students
everything about SOAP, WSDL, and UDDI web services
construction, but rather to teach the students the fundamental
concepts underlying the various technologies, thus
providing a solid foundation for choosing the right technology in web application and web services development situations.

During the course two mini projects are scheduled (replacing lectures). In the first mini project the students are asked to implement a web application; in the second mini project the students are asked to implement clients and
servers in an application-to-application web service.

• Lectures every week from 17.00 to 19:00 (except during the two mini project periods, in which the lectures are replaced by project question hours).



• Exercise classes from 14.30 to 16.30 or 19:00 to 21:00 (with instructors) every week.



• Two mandatory group projects, in which the theory is used to construct a working system. The students are not expected to use more hours during these periods than usual.

NB! In the introductory week, meaning from 27 August to 2 September 2004 the course will run as usual with lectures from 17:00 to 19:00 and exercises form 19:00 to 21:00.

Depending on the number of students, the teacher is allowed to separate the students in two groups for exercises. One group will then do exercises in the evening (from 19:00 - 21:00 as planned) and one group can do exercises before the lectures. 

A 4-hours written exam graded by the Danish 13-scale, external censor. Approval of the two mandatory group projects is a prerequisite for participating in the exam. The grade will not however depend on the projects. All usual aids, except computers, are allowed at the exam.