Abstract
It is effective to utilize business alliance for "commercialization", which launch and manage one business. We classify Web based support systems for business alliance on commercialization, according to "Role of Web system's administrator" and "Web system's openness". We consider growth and characteristic of Web systems. Nowadays, business alliance is utilized for "concept creation", which consider what business is worth launching. This study considers characteristic of business alliance and Web based support system for concept creation.
