Support complex and multi-level project management In many companies, a product or project often involves division of labor and collaboration among multiple departments. Due to the lack of a common project management platform, the tools used by everyone are scattered, resulting in asymmetric information transmission. , team collaboration is inefficient, and there is also a lack of accumulation and precipitation of project results. This new version of Qucheng will support the management method of project sets. There can be multiple sub-projects or projects under one project set. It also supports strict permission control to ensure the flexibility of management methods and data security. Supports the management of "big" projects. The "big" projects here are different from the projects in the old version of Qucheng. The projects in the old version of Qucheng are just sprints or iterations, while the projects in the new version of Qucheng can be Contain multiple sprints or iterations. Supporting multiple project management models, the new version of Qucheng will add a waterfall management model based on the agile management model. Different projects can adopt different management models, which greatly improves Qucheng's coverage of daily work management within the enterprise.