流程图、UML图等作图工具
Astah: http://astah.net/editions/community
processon: https://www.processon.com
任务管理相关：
(可以指定任务执行者发布者以及上传文件)redmine: http://www.redmine.org/
teambition: https://account.teambition.com/my/
(桌面便签)PNotesPortable: https://portableapps.com/apps/office/pnotes_portable