Υλοποίηση Διαδικτυακού Συστήματος Ανταλλαγής Προϊόντων Και Υπηρεσιών - The Vcommunity

Abstract

The principal aim of this thesis is the implementation of the internet oriented service of a system for the exchange of products and services among users and communities. The economy of this e-commerce community is not monetary, that means that it does not permit pecuniary transactions, but it is based on its members’ reputations. As a real community, the members of VCommunity create communities based on some common interests or aims or for other type of reasons like geographical.As a transaction example we can take a user who obtains a laptop and wants to (i) exchange it for a television, or (ii) give it as a gift to another member or (iii) to share it with the members of a community in which he belongs. Service type transactions can also be realized: for example a student with adequate knowledge for the computers wants to offer his know-how with exchange a lesson from a fellow student. Such transactions can be also made between services and objects. Like we mentioned above, the principal characteristic of VCommunity is the reputation of its members, as monetary transactions are not permitted. The reputation of a member is a total grade which reflects how good member of the community is. It is calculated by the addition of all the grades of the members’ transactions. The grade of the communities in which he belongs has also weight in the member reputation’s calculation.As a result, the object of my thesis is the design and implementation of an internet oriented community which does not based on monetary transactions but its members’ activation is realized based on their reputation.