Connection device and connection method using priority level information for a plurality of processes

Abstract

Provided is a technology for enabling smooth execution of a plurality of pieces of application software which perform communication via a communication path. A connection device includes: a storage unit which stores type priority level information for specifying a priority level assigned in advance for each type of a process, usable communication system information for specifying a usable communication system for each process, and sharing propriety information for specifying whether or not the communication system is sharable among a plurality of processes during the same period of time; a plurality of communication units which communicate to and from another device with use of the communication systems different from one another; and a communication system allocation control unit configured to: use the usable communication system information to identify the communication system usable by the process to be started to be executed; and allocate, when the identified communication system is not sharable and a process in execution that is different from the process already uses the identified communication system, the process to use the communication system based on the priority levels.