Flow decomposition method

A software-module chain construction method, comprising:

• obtaining a server-library dependency information for a plurality of servers associated with a library;
• tracing the plurality of servers and a plurality of modules associated with the library from server-library relationship in the server-library dependency information;
• calculating output ratios using the server-library relationship and a plurality of server functions;
• calculating dependency probability of the plurality of servers in association with the plurality of server functions, the plurality of servers, and the plurality of modules;
• and
• generating server function-library module relationship associated with the server functions and the library.

A cash flow monitoring method, comprising:

• obtaining expense information and revenue information associated with a company;
• calculating revenue ratios using the expense information and the revenue information;
• calculating correspondence probability of expenses of purchased components in association with revenues of products by using the revenue ratios;
• and
• generating revenue-expense relationship associated with the expenses of purchased components and the revenues of products of the company.