| 摘要 |
PURPOSE:To easily and efficiently deal with the concept of time in scheduling by determining an actual time corresponding to a unit time within a designated execution time while referring to a time pattern stored in a knowledge base when the time pattern to be used is designated. CONSTITUTION:Various kinds of the concepts of time are preliminarily registered in a time pattern definition information part 21 as time pattern TP based on a unit time UT corresponding to each concept of time, a larger unit period UP including each unit time and a relative position SP of the unit time UT within the unit period UP. When the time pattern TP to be used is designated at the time of executing scheduling, the actual time corresponding to the unit time UT for the time pattern TP is determined within the designated execution period TE while referring to the time pattern definition part 21, an object description part 22 and an execution environment information part 23. Thus, dealing with the concept of time in scheduling can be easily and efficiently performed. |
