Book sales system (1)

Since I recently studied databases, the teacher asked us to find a project to practice. after consideration, our team chose the book sales system. as the leader, I will lead the management of this project. I have also had the experience of working as a leader in school. Unfortunately, the project cannot be completed well due to insufficient technical estimation of the team members and my planning mistakes.
This determination must be well completed, so we will pay great attention to system planning and documentation, and will occasionally submit documents and plans for different development stages,CodeSent.

Initially, we decided to adopt the Java language, instead of using Web applications only for standalone applications. The database uses SQL2000, And the development environment may be netbeans.