1. 1 CS 501 Spring 2004 CS 501: Software Engineering Lecture 5 Legal Aspects of Software Engineering I

2. 2 CS 501 Spring 2004 Administration Project Announcements

3. 3 CS 501 Spring 2004 Administration Quizzes The first quiz is on Thursday. Each quiz: 30 minutes open book and notes 2 questions on lectures and required readings to date The best three of the four quizzes will be used in calculating your final grade.

4. 4 CS 501 Spring 2004 Legal Environment Software is developed in a complex legal and economic framework. Every software engineer needs to be aware of some parts of the framework, but you need a lawyer for anything other than the most basic legal issues.

5. 5 CS 501 Spring 2004 Legal Topics in Software Jurisdiction (international, federal, state laws) Intellectual property (copyright, patent, trademark, trade secrets) Contracts and licenses Privacy Free speech and its limitations (government secrets, obscenity) Complex areas (ISPs, e-commerce) Business law (personnel, your next job, etc.)

6. 6 CS 501 Spring 2004 Statues and Precedents The United States follows Common Law. The law is a combination of: (a) Statutes (bills) passed by Congress and the 50 states. (b) Precedents (judgments) made by courts. See: The Legal Information Institute for the US Code (the actual wording of the law) and much more useful information, http://www/law/cornell.edu, but... Do not assume that the interpretation by the courts is what you would expect from reading the statutes!

7. 7 CS 501 Spring 2004 Legal Change Changes in laws usually follow changes in technical world. Lawyers and politicians typically have poor technical backgrounds. The interpretation of many laws is unclear as they have often never been tested in court, because of the cost of litigation. Law usually develops incrementally. As a result, strange analogies are often made between new technological paradigms and old world systems.

8. 8 CS 501 Spring 2004 Jurisdiction: Boundaries “The Internet has no boundaries” If you break a law in Finland, but you were on the Internet in the United States, what happens to you? What if you are in California and you break a law in Minnesota? Where do you pay taxes? United States has Federal law, which covers the entire USA, and 50 states, each with its own laws. Relationship between US law and International Law is complex and changing.

9. 9 CS 501 Spring 2004 USA Jurisdiction: Federal Court System Jurisdiction United States Constitution International treaties Federal and state statues Precedents Federal Court System 13 Circuits, each with a court of appeals (appellate court) Supreme Court ultimate appellate court

10. 10 CS 501 Spring 2004 Intellectual Property Law: Copyright Copyright is Federal law, which applies to literary works. Originally applied to textual materials, but gradually extended to cover text, music, photographs, designs, software,... Copyright applies to the expression of ideas (e.g., the words used), not to the ideas themselves, nor to physical items. Software Copyright applies to the program instructions, but not to the concepts behind the instructions, nor to the files on disk or on paper where the programs instructions are stored.

11. 11 CS 501 Spring 2004 Ownership of Copyright (USA) At creation Copyright is automatically owned by the creator. Except works for hire, where the employer owns the copyright. Transfer of copyright In the USA, copyright is property that can be sold or licensed. The agreement to sell is written as a contract. "A verbal contract isn't worth the paper it's written on." (Attributed to Yogi Berra.)

12. 12 CS 501 Spring 2004 Ownership of Copyright International differences Moral rights In some countries, e.g., Canada, France, the creator of a work retains moral rights, which cannot be sold, for instance the right of attribution. Registration In the USA, copyright is established automatically when something is created. In many countries, it is necessary for the creator to register it to claim copyright.

13. 13 CS 501 Spring 2004 Copyright In the USA, copyright gives the owner exclusive right to: reproduce distribute perform display license others to reproduce, distribute, perform, or display Special rules First sale. The owner of an object, e.g., a book, can sell the object without permission of the copyright owner. Fair use. Limited use is permitted without permission of the copyright owner, e.g., in a review or short quotation.

14. 14 CS 501 Spring 2004 Copyright: Derivative Software When software is derived from other software: Copyright in new code only is owned by new developer Conditions that apply to old code apply to derived work If you write S, which includes code derived from A, B, C and D, you cannot distribute or licenses S unless you have right, from the copyright owner, to distribute each of A, B, C and D. To create a software product, you must have documented rights to use every component.

15. 15 CS 501 Spring 2004 Software Copyright Questions You are a student on CS 501. When you finish your project: What use can you make of your work? What use can your client make of it? What use can Cornell make of it?

16. 16 CS 501 Spring 2004 Software Copyright Questions You are a student on CS 501. When you finish your project: What use can you make of your work? What use can your client make of it? What use can Cornell make of it? At Cornell, you own the copyright in the work that you do for a class. Anybody else, including Cornell or your clients, needs your permission before using the software in any way. The feasibility study for your project should include a commitment to your clients that they will have full rights to the software developed (either transfer of ownership or a comprehensive license).

17. 17 CS 501 Spring 2004 Copyright: An Old Exam Question When software is written, who owns the copyright? How can somebody else be permitted to use the software? How can copyright be transferred to somebody else?

18. 18 CS 501 Spring 2004 Copyright: An Old Exam Question When software is written, who owns the copyright? The person who writes the software Except works for hire, where the employer owns copyright How can somebody else be permitted to use the software? By permission from the copyright owner (usually a license) How can copyright be transferred to somebody else? Copyright is property that can be sold or given away (usually a contract)

19. 19 CS 501 Spring 2004 Copyright: An Old Exam Question You are employed for company X writing software. When you leave, who owns your work? What use can you make of the work?

20. 20 CS 501 Spring 2004 Copyright: An Old Exam Question You are employed for company X writing software. When you leave, who owns your work? The company (work for hire) What use can you make of the work? None, without permission of the copyright owner. (Perhaps some minor use under "fair use".)

21. 21 CS 501 Spring 2004 Copyright: An Old Exam Question You work free-lance for company X. When you finish, who owns your work? What use can you make of the work?

22. 22 CS 501 Spring 2004 Copyright: An Old Exam Question You work free-lance for company X. When you finish, who owns your work? It depends on the circumstances. Have a written contract. What use can you make of the work? If you hold the copyright -- unrestricted. Otherwise -- none without agreement. (Perhaps some minor use under "fair use".)

23. 23 CS 501 Spring 2004 Contracts and Licences Contracts allow intellectual property to be sold Promise in exchange for some consideration (e.g., money) Written document with signatures: Permanent or temporary, whole or part Exclusive or non-exclusive Termination, problems and difficulties Terms and conditions as agreed Enforceable by courts For simple agreements, an exchange of letters is a convenient form of contract.

24. 24 CS 501 Spring 2004 Creative Commons www.creative commons.org

25. 25 CS 501 Spring 2004 Intellectual Property: Patents Patents apply to inventions Should be: non-obvious, novel, useful Requires a complex process of patent application 17 years from award (20 years from application) Copyright applies to the expression of ideas, patents to the ideas themselves.

26. 26 CS 501 Spring 2004 Software Patents Problems with software patents Poor quality of patent examiners can lead to broad patents for routine computing concepts Usually difficult to know where ideas originate International differences The situation is a serious mess!