Knowledge

The Open Source Definition

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The criteria are used by the OSI to approve certain licenses as compatible with the definition, and maintain a list of compliant licenses. New licenses have to submit a formal proposal that is discussed by the OSI mailing list before it is approved or rejected by the OSI board. Seven approved
58:, but motivated by more pragmatic and business-friendly considerations. The Open Source Initiative's board votes on proposals of licenses to certify that they are compliant with the definition, and maintains a list of compliant licenses on its website. The definition has been adapted into the 98:(OSI) as the Open Source Definition. The OSI uses the label "open source", rather than "free software", because it felt that the latter term had undesirable ideological and political freight, and it wanted to focus on the pragmatic and business-friendly arguments for 638:
De Maria, Carmelo; Díaz Lantada, Andrés; Di Pietro, Licia; Ravizza, Alice; Ahluwalia, Arti (2022). "Open-Source Medical Devices: Concept, Trends, and Challenges Toward Equitable Healthcare Technology".
102:. It adopted a closed rather than membership-driven organizational model in order to draft the definition and work together with a wider variety of stakeholders than other free or open-source projects. 186:. It does not address warranty disclaimers, although these are very common in open-source software. The definition does not specify a governance structure for open-source projects. 266:. Nevertheless, there is a values difference between the free software and open source movements: the former is more based on ethics and values, the latter on pragmatism. 925: 1004: 1223: 845: 310: 1062: 182:
rather than the free software movement, and seeks to promote the availability of open-source software for anyone seeking to reuse it, even the makers of
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The license may require that the original software be distributed intact, but only if modifications are able to be distributed as
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Understanding Open Source and Free Software Licensing: Guide to Navigating Licensing Issues in Existing & New Software
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Technological neutrality—cannot restrict use to any particular technology. For example, a license that requires a user to
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is not enough for software to be considered "open-source". The Open Source Definition requires that ten criteria be met:
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drafted a set of open-source guidelines to go with the release. A modified version of this definition was adopted by the
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licenses are particularly recommended by the OSI as "popular, widely used, or having strong communities":
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must be allowed and able to be redistributed under the same licensing terms as the open-source product
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must be accessible and the license must permit redistribution in the form of source code (rather than
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and granting the open-source rights to everyone who receives a copy of the program. Covering both
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Open Source Projects - Beyond Code: A blueprint for scalable and sustainable open source projects
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The Open Source Hardware Statement of Principles is adapted from the Open Source Definition.
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Gardler, Ross; Walli, Stephen R (2022). "Evolving Perspective on Community and Governance".
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Everyone who receives a copy of the program is granted all the open-source rights
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Bonvoisin, Jérémy; Mies, Robert; Boujut, Jean-François; Stark, Rainer (2017).
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The license must cover all the code, not a particular product or distribution.
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The Open Source Alternative: Understanding Risks and Leveraging Opportunities
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Smith, P McCoy (2022). "Copyright, Contract, and Licensing in Open Source".
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There may not be restrictions on other software distributed at the same time
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is not free because the work cannot be distributed as a paper copy.
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The Open Source Definition is the most widely used definition for
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is substantially derivative of the Open Source Definition.
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No discrimination between uses, including commercial use
674:"The Cultural Significance of free Software – Two Bits" 643:. Cham: Springer International Publishing. p. 4. 42:. The definition has ten criteria, such as requiring 846:
Comparison of open-source and closed-source software
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Comparison of free and open-source software licenses
292: 606:. Oxford University PressOxford. pp. 108–111. 54:, it is effectively identical to the definition of 1214: 825: 38:, the definition is the most common standard for 1448: 441: 166:The Open Source Definition is available under a 735:"What is the "Source" of Open Source Hardware?" 488:Erlich, Zippy (2007). "Open Source Software". 811: 851:Comparison of source-code-hosting facilities 490:Handbook of Research on Open Source Software 379: 446:. Cambridge University Press. p. 485. 233:Common Development and Distribution License 16:Certification by the Open Source Initiative 818: 804: 783:The Open Source Definition by Bruce Perens 442:Greenleaf, Graham; Lindsay, David (2018). 750: 581:. John Wiley & Sons. pp. 21–22. 519: 517: 515: 513: 511: 509: 444:Public Rights: Copyright's Public Domains 547: 545: 421:. Oxford University Press. p. 521. 641:Engineering Open-Source Medical Devices 633: 631: 523: 483: 1449: 710:The Complete Guide to Open Scholarship 707: 576: 551: 528:. O'Reilly Media, Inc. pp. 9–11. 506: 487: 481: 479: 477: 475: 473: 471: 469: 467: 465: 463: 375: 373: 371: 369: 367: 365: 363: 361: 339: 269: 205:BSD 3-Clause and BSD 2-Clause Licenses 799: 712:. Bloomsbury Publishing. p. 27. 671: 601: 542: 189: 1374:Microsoft Open Specification Promise 628: 604:Open Source Law, Policy and Practice 419:Open Source Law, Policy and Practice 412: 382:Open Source Law, Policy and Practice 303:Free and open-source software portal 170:(CC BY 4.0) license. It covers both 841:Alternative terms for free software 595: 556:. Packt Publishing Ltd. p. 5. 460: 358: 111:Providing access to the source code 13: 1181:Python Software Foundation License 612:10.1093/oso/9780198862345.003.0003 390:10.1093/oso/9780198862345.003.0002 14: 1473: 1244:Definition of Free Cultural Works 861:Free software project directories 771: 344:. Pike & Fischer. p. 5. 262:(FSF) essentially cover the same 26:) is a document published by the 1431: 1430: 1420: 881:Open-source software development 492:. IGI Global. pp. 187–188. 295: 1239:Debian Free Software Guidelines 1071:Free Software Movement of India 726: 701: 690:from the original on 2016-03-04 665: 316:Debian Free Software Guidelines 143:No discrimination between users 36:Debian Free Software Guidelines 570: 524:Laurent, Andrew M. St (2004). 435: 406: 333: 1: 1229:Contributor License Agreement 1043:Open-source-software movement 827:Free and open-source software 672:Kelty, Christpher M. (2008). 326: 1400:The Cathedral and the Bazaar 1254:The Free Software Definition 321:The Free Software Definition 245: 7: 1304:Mozilla software rebranding 1269:Permissive software license 649:10.1007/978-3-030-79363-0_1 577:Meeker, Heather J. (2008). 340:Overly, Michael R. (2003). 288: 105: 44:freely accessed source code 10: 1478: 1309:Proprietary device drivers 1259:The Open Source Definition 778:The Open Source Definition 211:GNU General Public License 160:click a box agreeing to it 77: 20:The Open Source Definition 1416: 1394:Source-available software 1352: 1294:Digital rights management 1286: 1084: 1061: 1023: 899: 833: 708:Martin, Victoria (2022). 276:Open Knowledge Foundation 217:GNU Lesser Public License 86:released the open-source 60:Open Knowledge Foundation 1389:Shared Source Initiative 1186:Shared Source Initiative 1139:Free Software Foundation 1076:Free Software Foundation 926:Configuration management 739:Journal of Open Hardware 342:The Open Source Handbook 260:Free Software Foundation 1324:SCO/Linux controversies 1224:Comparison of licenses 1033:Free software movement 239:Eclipse Public License 227:Mozilla Public License 96:Open Source Initiative 28:Open Source Initiative 1299:License proliferation 681:Duke University Press 552:Mertic, John (2023). 413:Katz, Andrew (2022). 1384:Open-source hardware 1319:Proprietary software 1314:Proprietary firmware 1015:Formerly open-source 1010:Formerly proprietary 876:Open-source software 252:open-source software 215:All versions of the 209:All versions of the 184:proprietary software 180:open source movement 140:without restriction. 100:open-source software 40:open-source software 1264:Open-source license 866:Gratis versus libre 270:Derived definitions 176:permissive licenses 117:Free redistribution 52:permissive licenses 200:Apache License 2.0 190:Compliant licenses 1444: 1443: 1344:Trusted Computing 1334:Software security 1282: 1281: 963:Operating systems 871:Long-term support 719:979-8-216-06415-2 658:978-3-030-79362-3 621:978-0-19-886234-5 588:978-0-470-25581-0 563:978-1-83763-385-2 535:978-0-596-55395-1 453:978-1-107-13406-5 428:978-0-19-260687-7 415:"Everything Open" 399:978-0-19-886234-5 351:978-0-937275-12-2 264:software licenses 90:browser in 1998, 1469: 1434: 1433: 1424: 1329:Software patents 1212: 1211: 1124:Creative Commons 983:Web applications 820: 813: 806: 797: 796: 765: 764: 754: 730: 724: 723: 705: 699: 698: 696: 695: 689: 678: 669: 663: 662: 635: 626: 625: 599: 593: 592: 574: 568: 567: 549: 540: 539: 521: 504: 503: 485: 458: 457: 439: 433: 432: 410: 404: 403: 377: 356: 355: 337: 305: 300: 299: 298: 168:Creative Commons 131:Derivative works 1477: 1476: 1472: 1471: 1470: 1468: 1467: 1466: 1447: 1446: 1445: 1440: 1412: 1379:Open-core model 1354: 1348: 1278: 1216: 1210: 1080: 1057: 1019: 902: 895: 829: 824: 774: 769: 768: 731: 727: 720: 706: 702: 693: 691: 687: 676: 670: 666: 659: 636: 629: 622: 600: 596: 589: 575: 571: 564: 550: 543: 536: 522: 507: 500: 486: 461: 454: 440: 436: 429: 411: 407: 400: 378: 359: 352: 338: 334: 329: 301: 296: 294: 291: 280:Open Definition 272: 248: 192: 108: 80: 64:Open Definition 30:. 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Index

Open Source Initiative
Bruce Perens
Debian Free Software Guidelines
open-source software
freely accessed source code
copyleft
permissive licenses
free software
Open Knowledge Foundation
Open Definition
open knowledge
open hardware
Netscape
Mozilla
Bruce Perens
Open Source Initiative
open-source software
Providing access to the source code
Source code
object code
Derivative works
patches
click a box agreeing to it
Creative Commons
copyleft
permissive licenses
open source movement
proprietary software
Apache License 2.0
BSD 3-Clause and BSD 2-Clause Licenses

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