Information processing apparatus and information processing system

An information processing system, comprising:

• a plurality of application executing units each executing an application for achieving a preset function;
• and
• a plurality of communication library executing units provided to correspond to each of said application executing units to manage a data communication between each of said application executing units, wherein
• said communication library executing unit comprises:
• an information processing apparatus including:
• a communication monitoring unit monitoring said data communication of one of said application executing units provided to correspond to said communication library executing unit itself and other of said application executing units, and generating a communication information including API types each indicating a type of an API used in said one of application executing units at time of said data communication for all of said data communication which is monitored;
• and
• a communication information storage storing said communication information generated in said communication monitoring unit;
• and
• other information processing apparatus estimating a pair of said API types used in said one of application executing units at time of said data communication based on said communication information stored in said communication information storage, said other information processing apparatus being communicatively connected to said information processing apparatus.