|   Crowdsourcing innovation virtual community  |       Characteristics  |       Degree of collaboration  |       Typical Case  |    
|   Enterprise self-built virtual community  |       The virtual community developed by the enterprise relying on Internet technology integrates opinions and suggestions (user-generated content) of a wide range of users on product products for product promotion and commercial development. And assist enterprises to better understand the needs and wishes of users [15] [17] [18] .  |       High  |       Ideastorm, My Starbucks Ideas; MIUI  |    
|   Third-party crowdsourcing platform  |       This kind of platform is a crowdsourcing agency that connects the contractor (enterprise, individual or non-profit organization, etc.) with the contractor (social public participant); it integrates the wisdom of the enterprise to solve the innovation problems faced by the enterprise, and the submitted solution is finally adopted. The user gets the corresponding reward [17] .  |       Low  |       Innocentive; Taskcn.com; zhubajie  |