Differences

This shows you the differences between two versions of the page.

--- lfc291 [2016/06/07 15:56]
mantis [Module 4 - File notices]
+++ lfc291 [2016/06/07 15:57] (current)
mantis [Module 5 - Preconditions for contributions]
@@ Line 1: / Line 1: @@
+Notes from LFC 291, from May 2016.
+{{http://imgs.xkcd.com/comics/open_source.png }}
+Source: [[http://xkcd.com/225/|http://xkcd.com/225/]] provided under [[http://creativecommons.org/licenses/by-nc/2.5/|CC BY-NC 2.5.]]
+====== Module 2 - Licenses ======
+===== Web resources to assist with choosing a license =====
+  * opensource.org
+  * choosealicense.com
+  * tldrlegal.com
+  * gnu.org: copyleft licenses
+And for artistic work:
+  * creativecommons.org
+===== Putting licenses in place =====
+Separate license file
+In files, refer to license
+How to refer (in descending order of preference):
+  * Use standard license header
+  * Use the SPDX-License-Identifier (license-identifier from the SPDX List of Licenses). Makes the header very concise. /* SPDX-License-Identifier: Apache-2.0 */
+  * Provide the URL to the license definition page
+  * Provide the URL to a neutral/refereed web site with a curated list of licenses, e.g. the Open Source Initiative opensource.org or Software Package Data Exchange websites)
+Using URLs may be a risk, because websites change over time.
+ ======  Module 3 - Copyrights   ======
+"[[https://en.wikipedia.org/wiki/Copyright|Copyright]]  is a legal right created by the law of a country that grants the creator of an original work exclusive rights for its use and distribution."
+Copyright extends to how ideas or algorithms are written down.
+Ideas and algorithms are covered by patent law instead.
+===== Legal aspects =====
+In all countries in the [[https://en.wikipedia.org/wiki/Berne_Convention|Berne Union]] it is not necessary to apply for copyright.
+Possible copyright holders
+  * the author
+  * the author's employer (work for hire)
+  * an organisation or individual can be assigned to be copyright holder
+===== Copyright notice =====
+Although it is not necessary in the Berne Union to add a copyright notice for //claiming// copyright, it is still recommended to indicate the copyright holders in code: e.g. in court it is necessary to establish who the copyright holder is. Having a copyright notice in place is a quick and easy way to ensure this.
+ The indication should have the form:
+<a copyright indicator> <years applicable>, <copyright holder(s)>.
+The course recommends:
+  - Add a copyright notice to a new file
+  - Update the copyright notice when making a significant update to the file
+====== Module 4 - File notices ======
+A file notice consists of the license reference (module 2) and a copyright notice (module 3).
+A file notice
+  * identifies the copyright holder(s) via notices.
+  * identifies the license that the file is governed by.
+  * maybe gives additional information about authorship.
+  * should be clear and machine-detectable.
+====== Module 5 - Preconditions for contributions ======
+Contributor Agreements are:
+      * Contributor License Agreement (Apache, Google)
+      * Copyright Assignment (GNU toolchain)
+      * A Developer's Certificate of Origin  (Linux, OP-TEE)

Small heaps of code

User Tools

Site Tools

Differences

Page Tools