Digital Rights and Responsibilities
저자: Charles Hope
1. Public Domain
1.1. work can be used adapted,copied and published completely without restrictions
2. Creative Commons
2.1. work may be used without permission but only in restricted circumstances
3. Copyright
3.1. work can not be copied,adapted or published without permission
4. Fair use
4.1. check who owns it ,get permission to use it ,use it appropriately,may have to buy it and give credit
