Discussion on business of free software products - through E-Jikei Network Project

Software engineering is very different from the other fields of engineering. One of the difference points is that the authors of software products make software products public on the Internet so that anyone can use them without charge. Such software products are called free software or open source software. However, free software or open source software cannot make money and it is not software business aside from that it is good or bad. This paper discusses how to make business for software products which are made by individuals or small organizations. This discuss shows some reasons why such software products cannot be commercial software products which can make money.