DATA PROCESSING DEVICE, DATA PROCESSING SYSTEM, DATA PROCESSING METHOD AND RECORDING MEDIUM

PROBLEM TO BE SOLVED: To provide a data processing device capable of satisfying client's demand, and efficiently realizing the trial-and-error calculation, and the simulated calculation while updating the data and the like with a simple constitution. SOLUTION: A first managing means 112 manages the collection (context #0, #1, #2,...) of the object data as objects of arbitrary processing executed by clients C1, C2, C3,... by every client. Second and third managing means 111 manage the relationship of the object data configurating a context, and the entity corresponding to the object data by every context, and manages the parent-child relationship of the context (context tree). COPYRIGHT: (C)2003,JPO