Service providing system using purchaser terminal and data collating terminal

A service providing system comprising:

• a commerce provider server connected to a network;
• a purchaser terminal, connected to said network and having an interface with a data holder, for receiving services from said commerce provider server and transmitting a selected service and a purchaser identification number to said commerce provider server, so that said commerce provider server stores said selected service in correspondence with said purchaser identification number, and said selected service along with said purchaser identification number is written into said data holder;
• a data reader for reading said selected service and said purchaser identification number from said data holder;
• a data collating terminal, connected between said data reader and said network, for retrieving said selected service stored in said commerce provider server by using said purchaser identification number read from said data reader, and collating said selected service from said data reader with said retrieved service from said commerce provider server to verify whether or not a purchaser having said data holder is a true one.

A service providing method for a service providing system comprising a commerce provider server connected to a network, a purchaser terminal connected to said network and having an interface with a data holder, a data reader, and a data collating terminal connected between said data reader and said network, said method comprising the steps of:

• receiving services from said commerce provider server by said purchaser terminal;
• transmitting a selected service of said services along with a purchaser identification number from said purchaser terminal to said commerce provider server;
• storing said selected service in correspondence with said purchaser identification number in said commerce provider server;
• transmitting said selected service along with said purchaser identification number from said commerce provider to said data collating terminal;
• writing said selected service along with said purchaser identification number in said data holder;
• reading said selected service along with said purchaser identification number from said data holder by said data reader;
• and
• collating said selected service and said purchaser identification from said data reader with said selected service and said purchaser identification number from said commerce provider to verify whether or not a purchaser having said data holder is a true one.

A service providing method for a service providing system comprising a commerce provider server connected to a network, a purchaser terminal connected to said network and having an interface with a data holder, a data reader, and a data collating terminal connected between said data reader and said network, said method comprising the steps of:

• receiving services from said commerce provider server by said purchaser terminal;
• transmitting a selected service of said services along with a purchaser identification number from said purchaser terminal to said commerce provider server;
• storing said selected service in correspondence with said purchaser identification number in said commerce provider server;
• writing said selected service along with said purchaser identification number in said data holder;
• reading said selected service along with said purchaser identification number from said data holder by said data reader;
• retrieving said selected service stored in said commerce provider server by using said purchaser identification number read from said data reader;
• and
• collating said selected service read from said data reader with said retrieved service to verify whether or not said purchaser is a true one.