1. Open source ecology

• Productivity: to evaluate the ability of open source projects to output software products and open source value.
• Innovation: used to evaluate the diversity of open source software and its ecosystem.
• Robustness: used to evaluate the ability of open source projects to resist internal and external interference and recover themselves in the face of changing development environment.

2. Collaboration, people, software

• Collaboration: represents the degree and depth of collaboration in open source development.
• People: observe the influence of core personnel of open source projects in open source projects, and examine the evaluation of users and developers on open source projects from a third-party perspective.
• Software: evaluate the final foothold of the value of products exported from open source projects. It is also the specific expression of "open source software", one of the oldest mainstream directions of open source evaluation.

3. Evaluation model

Based on the dimensions of "open source ecology" and "collaboration, people, software", find quantifiable indicators directly or indirectly related to the goal, conduct quantitative assessment on the health and ecology of open source projects, and finally form an open source assessment index.