Communication device, communication system, communication method and non-transitory computer readable medium

A communication method performed in a computer communicating with each of a control device and a processing device through a network, comprising:

• receiving a first request from the control device, wherein the first request designates a process to be executed by the processing device, the first request contains a request value of a first time limit of the process, and the request value of the first time limit can be individually specified by the control device;
• creating a job when the first request is received, the job containing instruction information for execution of the process designated by the first request and the first time limit of the process;
• controlling a state of the job and setting the state of the job to a first state when the job is created, the first state indicating that the job has been created and has not yet been assigned to the processing device;
• transitioning the state of the job from the first state to a second state when a job acquisition request is received from the processing device during a period of time in which the job is in the first state, the second state indicating that the job is assigned to the processing device, and transmitting a first response including the job to the processing device;
• transitioning the state of the job from the second state to a third state when a second request indicating that all or part of the job is executed in the processing device is received from the processing device during a period of time in which the job is in the second state, the third state indicating that all or part of the job has been executed in the processing device;
• specifying a state of the job when the processing circuitry receives a second third for the job from the control device or the processing device, the specified state being either one of a plurality of states including the first state, the second state and the third state;
• and
• controlling execution of the third request based on the specified state of the job and the first time limit of the job.

A non-transitory computer readable medium storing a computer program stored therein which when executed by a computer communicating with each of a control device and a processing device through a network, causes the computer to execute processing of steps:

• comprising:
• receiving a first request from the control device, wherein the first request designates a process to be executed by the processing device, the first request contains a request value of a first time limit of the process, and the request value of the first time limit can be individually specified by the control device;
• creating a job when the first request is received, the job containing instruction information for execution of the process designated by the first request and the first time limit of the process;
• controlling a state of the job and setting the state of the job to a first state when the job is created, the first state indicating that the job has been created and has not yet been assigned to the processing device;
• transitioning the state of the job from the first state to a second state when a job acquisition request is received from the processing device during a period of time in which the job is in the first state, the second state indicating that the job is assigned to the processing device, and transmitting a first response including the job to the processing device;
• transitioning the state of the job from the second state to a third state when a second request indicating that all or part of the job is executed in the processing device is received from the processing device during a period of time in which the job is in the second state, the third state indicating that all or part of the job has been executed in the processing device;
• specifying a state of the job when the processing circuitry receives a third request for the job from the control device or the processing device, the specified state being either one of a plurality of states including the first state, the second state and the third state;
• and
• controlling execution of the third request based on the specified state of the job and the first time limit of the job.