SERVICE LINK SYSTEM, LINK SERVER, SECURE TOKEN, IT PROGRAM AND RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To safely perform linked service provision by using applications provided by various service providers, while preventing tampering and plagiarism of scenario data. SOLUTION: This system is provided with a plurality of application servers 1-1 to 1-n for holding application information, a link server 2 for managing the linkage of those application servers, a terminal system 3 connected to the link server, and a secure token 4 equipped with a means of connecting to the terminal system 3. The link server 2 is provided with a means for generating a linkage scenario describing the linkage management procedure of those application servers 1-1 to 1-n and a means for writing the linkage scenario in the secure token 4. The secure token 4 is provided with a means for successively executing those applications according to the written linkage scenario.