BCC is a regional competition in organization of WUS Austria. More information about competition itself you can find here at the following sites: www.wus-austria.org/belgrade and www.ainsee.info/bcc.

I participated in this competition with two friends: Markovic Nemanja and Pavlovic Milos. We won third place in ICT part of the competition.

The case problem was presented to us by Eunet company. Our task was to present solution for mail system improvement:

Current situation:

• Daily numbers of e-mails over 1 million (50% spams)
• Number of accounts over 150.000
• Over 140.000 connection per day
• Web hosting over 3000
• File servers, etc.
• Number of servers at primary location (cluster 6 SMTP and 2 POP3, non-cluster 4 LDAP)

Hardware performance demands:

• Functionality
• High performance
• Safety
• Scalability

Software and application demands:

• protection from malicious intrusions in the system
• more efficient reception and distribution of electronic mail
• better antivirus protection
• more efficient antispam protection without affecting the privacy of the data
• data storage

The project related the problem of student service for which it was necessary to enable the tracking of master thesis work progress. Efficient communication between mentoring persons was imperative. Services involved in communication process were Student service, Science counselors, Graduate commission, Department commission and Commission for work evaluation.

Main point of process:

• student applies for master thesis work
• Student service sends the application to the Department commission
• Department commission determines the mentor
• Permission and mentor are discussed by the Science counselors
• Final decision is made by the Personal service department

I worked in team on this project along with Markovic Nemanja, Pavlovic Milos and Vukotic Milos.

This small application is used for tracking the client transactions. It is ment to be used by brokers. With it you can manage data about clients, their bank accounts and transactions. You can also manage their orders for purchasing or selling stocks.

Conceptual model [large]	Use-case diagram [large]

Main part of the project was realized on Java2EE platform. Utility applications that are used in conjunction with core part are based also on Java technologies: Java2ME and JXTA. MySQL is used as database solution.

4-tier architecture was used along with known MVC architectural pattern. Web tier has 4 servlets and many JSPs. Interceptor servlet is used to get user actions and to invoke proper EJB. Exporter is used to export documents to XML, PDF and Excel. Messenger is used as JMS gateway, to send messages to hybrid JMS/JXTA server. ServiceBroker is used as access point for Java2ME enabled devices which don’t have required XML processing capabilities necessary for interaction with web services. In EJB tier corresponding beans are implemented to articulate original design. Web service is realized as stateless session bean. JMS/JXTA hybrid server is used to dispatch JMS messages to peer clients.

Architectural model [large]

This application helps dentists to manage their daily operations. Patient record management, Staff management, Service management, Financial management and Scheduler are operations covered by this application. Additional module, which is not available in basic version, enables manly different ways of communication with patients. Some examples of communication are with SMS, plain old phone call and Skype. This additional module is used for scheduling meeting and has also some additional features.

For developing .NET and C++ are used.

Simple presentation which I did for the private company in Belgrade. Here you can find information about the tax system in Serbia. Also you can order materials via ASP.net program I have designed for that purpose.

Note: The content may have been changed since I am not administrator anymore.