PROGRAM CONTROL SYSTEM

PURPOSE:To control the operation of an execution program under execution presently by providing a control file to be referred by the executing program during the execution and providing a means to change data in the control file by the other program. CONSTITUTION:An execution program 21 is internally equipped with an analysis control part 23 to analyze a control file 4, to give an instruction to the operation of the whole executing program 21 and to control the operation. A preparation and edition program 22 is a program for newly preparing the control file 4 based on the data inputted from an input/output device or to re-edit the data of the control file 4 already prepared. The execution program 21 under the execution is controlled through the data in the control file 4. Thus, the operation of the execution program 21 presently under the execution is controlled and without making a processed result up to the moment useless, the operation of the executing program 21 can be finished or processing, which is different from processing intended at first, can be executed.