Level 1

(general-view flow)

Composition of main business

Type of industry and business condition community

Leader

-An order of main business common to a type of industry

-“Role” and “Data” are not described.

Level 2

(typical flow)

Flow of standard business process

Type of industry and business condition community

Leader

-Business data used as the input/output of the level 1 process

-Business process used as the procedure from the input to the output

Level 3

(systematization flow)

Business process flow including the definition of the systematization range

One customer

The person in charge

-The system functions for realizing the level 2 process.

-Input data and output data of a function

-How to use in the business of a function