A computer has a table for managing a relationship between classes under which data to be processed unique to each of at least one first application program is classified according to a function/attribute thereof, and processes assigned to each class and each capable of being executed by a second application program. The table manages a relationship between said process and said second application program that executes said process. An in-context launching managing method comprises: when one of said data is selected, specifying the class to which said selected data belongs; extracting at least one process that is assigned to said specified class, creating a process list including the extracted process, and displaying said created process list; when one of said process is selected from said process list, accepting said selected process; and specifying the second application program related to said accepted process, and starting said specified second application program.