Nowadays to find the most favorable price of a product is the main problem in circle of online customers. Many companies work with daily prices which make things more difficult to follow the information about the products. During the thesis I design and realize a web portal which could control this situation.
In the first chapter I discover the evolution of the problem. Where does the online shopping came from and where does it tend to all around the world and Hungary. I look through the demands of the participant one by one in this situation.
In the second chapter I plan the system which can satisfy the revealed demands. I plan the skeleton and the structure of the system, and find out an efficient solution.
In the third chapter I implement the planned system. I introduce the existing techniques and their advantages and disadvantages, then I explain some of these that I chose for the realization.
In the forth chapter I present the testing of the implement variation of the system. I review the usability of the web portal and the functioning of the interfaces made for the companies.