Method and System for Interworking Plurality of Applications

A system for interoperation of a plurality of applications, the system comprising:

• a table maintenance unit maintaining a handler table including data type information, function information and calling information which are associated with each application installed in a portable device;
• an input information receiving unit receiving input information on a menu key of the portable device, from a user, while a first application is active;
• a function information extraction unit extracting at least one function information associated with data type information of data, which is being processed or requested by the first application, from the handler table, in response to the receipt of the input information;
• a menu providing unit dynamically generating a menu including the extracted at least one function information and providing the user with the generated menu;
• a selection information receiving unit receiving selection information on particular function information among the provided menu, from the user;
• and
• an application execution unit identifying calling information associated with the selected particular function information by referring to the handler table and executing a second application on the basis of the identified calling information.