Knowledge (XXG)

Requirements engineering

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5547: 1876: 25: 187:– Some engineering fields (or specific situations) require the product to be completely designed and modeled before its construction or fabrication starts. Therefore, the design phase must be performed in advance. For instance, blueprints for a building must be elaborated before any contract can be approved and signed. Many fields might derive models of the system with the 1866: 241:
Problem structuring, a key aspect of requirements engineering, has been speculated to reduce design performance. Some research suggests that it is possible if there are deficiencies in the requirements engineering process resulting in a situation where requirements do not exist, software requirements
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and negotiation – Requirements are identified (including new ones if the development is iterative), and conflicts with stakeholders are solved. Both written and graphical tools (the latter commonly used in the design phase, but some find them helpful at this stage, too) are successfully used as aids.
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One limited study in Germany presented possible problems in implementing requirements engineering and asked respondents whether they agreed that they were actual problems. The results were not presented as being generalizable but suggested that the principal perceived problems were incomplete
201:– Requirements are documented in a formal artifact called a Requirements Specification (RS), which will become official only after validation. A RS can contain both written and graphical (models) information if necessary. Example: 4873: 110:
was probably in 1964 in the conference paper "Maintenance, Maintainability, and System Requirements Engineering", but it did not come into general use until the late 1990s with the publication of an
2172: 217:– Managing all the activities related to the requirements since inception, supervising as the system is developed, and even until after it is put into use (e. g., changes, extensions, etc.) 147:
The activities involved in requirements engineering vary widely, depending on the type of system being developed and the organization's specific practice(s) involved. These may include:
211:– Checking that the documented requirements and models are consistent and meet the stakeholder's needs. Only if the final draft passes the validation process, the RS becomes official. 4385: 233:
requirements, moving targets, and time boxing, with lesser problems being communications flaws, lack of traceability, terminological problems, and unclear responsibilities.
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Méndez Fernández, Daniel; Wagner, Stefan (2015). "Naming the pain in requirements engineering: A design for a global family of surveys and first results from Germany".
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These are sometimes presented as chronological stages although, in practice, there is considerable interleaving of these activities.
4674: 3698: 2448: 1967: 1538: 1405: 1390: 931: 408: 65: 5238: 4410: 4254: 571: 125:, requirements engineering is presented as the first phase of the development process. Later development methods, including the 2147: 35: 5576: 5333: 5328: 5035: 2429: 1869: 1694: 1621: 1611: 1456: 1385: 1098: 991: 966: 1745: 158:– Developers and stakeholders meet; the latter are inquired concerning their needs and wants regarding the software product. 5127: 4457: 4390: 3970: 3618: 2404: 1879: 1674: 1616: 1338: 1057: 971: 114:
tutorial in March 1997 and the establishment of a conference series on requirements engineering that has evolved into the
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Hofmann, H.F.; Lehner, F. (2001). "Requirements engineering as a success factor in software projects".
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Requirements engineering has been shown to clearly contribute to software project successes.
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Ralph, P. (September 2013). "The illusion of requirements in software development".
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Systems and software engineering -- Life cycle processes --Requirements engineering
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Managing the Development of Large Software Systems: Concepts and Techniques
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Requirements Engineering and Management for Software Development Projects
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Proceedings of the 9th international conference on Software Engineering
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Proceedings of the conference on the future of Software engineering
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Maintenance, maintainability, and system requirements engineering
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Defining and maintaining requirements in systems engineering
740:"Is Requirements Engineering Inherently Counterproductive?" 263:, requirements engineering focused in software engineering. 87:) is the process of defining, documenting, and maintaining 891: 631:"Uncovering Requirements With UML Class Diagrams Part 1" 534:
Thayer, Richard H.; Dorfman, Merlin, eds. (March 1997).
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International Requirements Engineering Board (IREB)
902: 535: 434:Requirements Engineering: Processes and Techniques 431: 246:misrepresenting design decisions as requirements 116:International Requirements Engineering Conference 3248: 1906: 1346: 932: 8: 897:Requirements Engineering Management Handbook 279:International Council on Systems Engineering 273:International Requirements Engineering Board 137:International Council on Systems Engineering 886:https://standards.ieee.org/ieee/29148/5289/ 3255: 3241: 3233: 2237: 1913: 1899: 1891: 1634: 1353: 1339: 1331: 939: 925: 917: 795: 738:Ralph, Paul; Mohanani, Rahul (May 2015). 706: 390: 267:Requirements Engineering Specialist Group 66:Learn how and when to remove this message 1544:Software development process/methodology 982:Earth systems engineering and management 42:Relevant discussion may be found on the 360: 875: 865: 764: 753: 368:Nuseibeh, B.; Easterbrook, S. (2000). 318:Software Engineering Body of Knowledge 256:List of requirements engineering tools 892:Systems Engineering Body of Knowledge 7: 1865: 1559:Software verification and validation 1462:Component-based software engineering 165:Examples of written analysis tools: 694:Information and Software Technology 509:SAE World Congress & Exhibition 371:Requirements engineering: a roadmap 313:Software requirements specification 203:Software requirements specification 329:Specification (technical standard) 14: 1539:Software configuration management 1406:Search-based software engineering 1391:Experimental software engineering 1017:Sociocultural Systems Engineering 538:Software Requirements Engineering 46:. Please help Knowledge (XXG) by 5546: 5545: 1875: 1874: 1864: 503:Dresner, K. H. Borchers (1964). 242:may be created regardless as an 23: 173:. Examples of graphical tools: 38:of non-free copyrighted sources 1386:Empirical software engineering 1099:Systems development life cycle 992:Enterprise systems engineering 967:Biological systems engineering 1: 1058:System of systems engineering 972:Cognitive systems engineering 908:IBM Rational Resource Library 1411:Site reliability engineering 850:10.1109/IEEESTD.2011.6146379 717:10.1016/j.infsof.2014.05.008 191:, whereas others, might use 1416:Social software engineering 1135:Quality function deployment 1048:Verification and validation 544:IEEE Computer Society Press 189:Lifecycle Modeling Language 5605: 3217:IEEE Standards Association 1554:Software quality assurance 997:Health systems engineering 513:SAE Technical Paper 640591 199:Requirements specification 106:The first use of the term 93:engineering design process 5541: 3274: 3207: 1860: 1315: 1145:Systems Modeling Language 814:10.1007/s00766-012-0161-4 470:10.1007/978-1-4614-5377-2 95:. It is a common role in 1710:Model-driven engineering 1509:Functional specification 1492:Software incompatibility 1401:Requirements engineering 1160:Work breakdown structure 1038:Functional specification 1033:Requirements engineering 977:Configuration management 784:Requirements Engineering 156:requirements elicitation 127:Rational Unified Process 108:requirements engineering 81:Requirements engineering 3222:Category:IEEE standards 1504:Enterprise architecture 1007:Reliability engineering 1002:Performance engineering 844:. 2011. pp. 1–94. 215:Requirements management 209:Requirements validation 133:Requirements management 1715:Round-trip engineering 1472:Backward compatibility 1467:Software compatibility 1282:Industrial engineering 987:Electrical engineering 763:Cite journal requires 748:10.13140/2.1.3831.6321 670:10.1109/MS.2001.936219 152:Requirements inception 48:rewriting this article 5577:Software requirements 1534:Software architecture 1487:Forward compatibility 1216:Arthur David Hall III 1186:Benjamin S. Blanchard 962:Aerospace engineering 440:John Wiley & Sons 401:10.1145/336512.336523 308:Software requirements 303:Operations management 297:Concept of operations 261:Requirements analysis 162:Requirements analysis 112:IEEE Computer Society 1832:Computer engineering 1529:Software archaeology 1519:Programming paradigm 1431:Software maintenance 1376:Computer programming 1362:Software engineering 1307:Software engineering 1277:Computer engineering 603:Software Engineering 334:Formal specification 324:Design specification 101:software engineering 50:with your own words. 5572:Systems engineering 1852:Systems engineering 1837:Information science 1617:Service orientation 1569:Structured analysis 1477:Compatibility layer 1421:Software deployment 1287:Operations research 1272:Control engineering 1241:Joseph Francis Shea 948:Systems engineering 806:2013AIPC.1516..293R 97:systems engineering 3268:by standard number 1842:Project management 1607:Object orientation 1574:Essential analysis 1482:Compatibility mode 1297:Quality management 1292:Project management 1120:Function modelling 1043:System integration 1012:Safety engineering 430:(September 1998). 385:. pp. 35–46. 344:Quality Management 139:(INCOSE) manuals. 36:close paraphrasing 5587:ISO/IEC standards 5559: 5558: 3282:ISO romanizations 3230: 3229: 3121: 3120: 1888: 1887: 1815: 1814: 1756:Information model 1660:Incremental model 1514:Modeling language 1328: 1327: 1251:Manuela M. Veloso 1191:Wernher von Braun 859:978-0-7381-6591-2 616:978-0-13-703515-1 553:978-0-8186-7738-0 479:978-1-4614-5376-5 449:978-0-471-97208-2 426:Kotonya, Gerald; 76: 75: 68: 5594: 5549: 5548: 3269: 3257: 3250: 3243: 3234: 2238: 1915: 1908: 1901: 1892: 1878: 1877: 1868: 1867: 1827:Computer science 1635: 1549:Software quality 1441:Systems analysis 1436:Software testing 1355: 1348: 1341: 1332: 1256:John N. Warfield 1226:Robert E. Machol 1155:Systems modeling 1150:Systems analysis 1089:System lifecycle 1074:Business process 941: 934: 927: 918: 883: 877: 873: 871: 863: 826: 825: 799: 779: 773: 772: 766: 761: 759: 751: 735: 729: 728: 710: 688: 682: 681: 653: 647: 646: 644: 642: 627: 621: 620: 605:(9th ed.). 599:Sommerville, Ian 595: 589: 588: 578: 564: 558: 557: 542:(2nd ed.). 541: 531: 525: 524: 500: 494: 491: 453: 437: 428:Sommerville, Ian 421: 415: 414: 394: 376: 365: 349:Scope Management 339:Software Quality 71: 64: 60: 57: 51: 27: 26: 19: 5604: 5603: 5597: 5596: 5595: 5593: 5592: 5591: 5562: 5561: 5560: 5555: 5537: 5461: 5187: 4339: 3288: 3270: 3267: 3261: 3231: 3226: 3203: 3157: 3117: 3019: 2767: 2759: 2467: 2459: 2341: 2227: 1924: 1919: 1889: 1884: 1856: 1847:Risk management 1811: 1780: 1719: 1700:Waterfall model 1670:Prototype model 1665:Iterative model 1626: 1602:Aspect-oriented 1585: 1564:Software system 1445: 1426:Software design 1364: 1359: 1329: 1324: 1311: 1302:Risk management 1260: 1201:Harold Chestnut 1196:Kathleen Carley 1164: 1140:System dynamics 1115:Decision-making 1103: 1079:Fault tolerance 1062: 1021: 950: 945: 874: 864: 860: 838: 835: 830: 829: 781: 780: 776: 762: 752: 737: 736: 732: 690: 689: 685: 655: 654: 650: 640: 638: 637:. 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2687: 2682: 2677: 2672: 2667: 2662: 2657: 2652: 2647: 2642: 2637: 2632: 2627: 2622: 2617: 2612: 2605: 2600: 2595: 2590: 2585: 2578: 2573: 2568: 2563: 2558: 2551: 2546: 2541: 2536: 2531: 2526: 2521: 2516: 2511: 2506: 2501: 2496: 2491: 2486: 2481: 2475: 2473: 2461: 2460: 2458: 2457: 2452: 2442: 2437: 2432: 2427: 2422: 2417: 2412: 2407: 2402: 2397: 2392: 2387: 2382: 2377: 2372: 2367: 2362: 2357: 2351: 2349: 2343: 2342: 2340: 2339: 2334: 2329: 2324: 2319: 2314: 2309: 2308: 2307: 2297: 2292: 2287: 2282: 2277: 2272: 2267: 2262: 2257: 2252: 2246: 2244: 2235: 2229: 2228: 2226: 2225: 2220: 2215: 2210: 2205: 2200: 2195: 2190: 2185: 2180: 2175: 2170: 2165: 2160: 2155: 2150: 2145: 2140: 2135: 2130: 2125: 2120: 2115: 2110: 2105: 2100: 2095: 2090: 2085: 2080: 2075: 2070: 2065: 2060: 2055: 2050: 2045: 2040: 2035: 2030: 2025: 2020: 2015: 2010: 2005: 2000: 1995: 1990: 1985: 1980: 1975: 1970: 1965: 1960: 1959: 1958: 1948: 1943: 1938: 1932: 1930: 1926: 1925: 1922:IEEE standards 1920: 1918: 1917: 1910: 1903: 1895: 1886: 1885: 1883: 1882: 1872: 1861: 1858: 1857: 1855: 1854: 1849: 1844: 1839: 1834: 1829: 1823: 1821: 1820:Related fields 1817: 1816: 1813: 1812: 1810: 1809: 1804: 1799: 1794: 1788: 1786: 1782: 1781: 1779: 1778: 1773: 1768: 1763: 1758: 1753: 1751:Function model 1748: 1743: 1738: 1733: 1727: 1725: 1721: 1720: 1718: 1717: 1712: 1707: 1702: 1697: 1692: 1687: 1682: 1677: 1672: 1667: 1662: 1657: 1655:Executable UML 1652: 1647: 1641: 1639: 1632: 1628: 1627: 1625: 1624: 1619: 1614: 1609: 1604: 1599: 1593: 1591: 1587: 1586: 1584: 1583: 1578: 1577: 1576: 1566: 1561: 1556: 1551: 1546: 1541: 1536: 1531: 1526: 1521: 1516: 1511: 1506: 1501: 1496: 1495: 1494: 1489: 1484: 1479: 1474: 1464: 1459: 1453: 1451: 1447: 1446: 1444: 1443: 1438: 1433: 1428: 1423: 1418: 1413: 1408: 1403: 1398: 1396:Formal methods 1393: 1388: 1383: 1378: 1372: 1370: 1366: 1365: 1360: 1358: 1357: 1350: 1343: 1335: 1326: 1325: 1323: 1322: 1316: 1313: 1312: 1310: 1309: 1304: 1299: 1294: 1289: 1284: 1279: 1274: 1268: 1266: 1265:Related fields 1262: 1261: 1259: 1258: 1253: 1248: 1243: 1238: 1233: 1231:Radhika Nagpal 1228: 1223: 1221:Derek Hitchins 1218: 1213: 1208: 1203: 1198: 1193: 1188: 1183: 1178: 1176:James S. Albus 1172: 1170: 1166: 1165: 1163: 1162: 1157: 1152: 1147: 1142: 1137: 1132: 1127: 1122: 1117: 1111: 1109: 1105: 1104: 1102: 1101: 1096: 1091: 1086: 1081: 1076: 1070: 1068: 1064: 1063: 1061: 1060: 1055: 1050: 1045: 1040: 1035: 1029: 1027: 1023: 1022: 1020: 1019: 1014: 1009: 1004: 999: 994: 989: 984: 979: 974: 969: 964: 958: 956: 952: 951: 946: 944: 943: 936: 929: 921: 915: 914: 905: 900: 894: 889: 876:|journal= 858: 834: 833:External links 831: 828: 827: 790:(3): 293–296. 774: 765:|journal= 730: 683: 648: 635:tynerblain.com 622: 615: 607:Addison-Wesley 590: 559: 552: 526: 521:10.4271/640591 495: 493: 492: 478: 454: 448: 416: 409: 359: 358: 356: 353: 352: 351: 346: 341: 336: 331: 326: 321: 315: 310: 305: 300: 294: 288: 282: 276: 270: 264: 258: 251: 248: 238: 235: 229: 226: 219: 218: 212: 206: 196: 182: 159: 144: 141: 74: 73: 56:September 2020 31: 29: 22: 15: 13: 10: 9: 6: 4: 3: 2: 5600: 5599: 5588: 5585: 5583: 5580: 5578: 5575: 5573: 5570: 5569: 5567: 5552: 5544: 5543: 5540: 5534: 5531: 5529: 5526: 5524: 5521: 5519: 5516: 5514: 5511: 5509: 5506: 5504: 5501: 5499: 5496: 5494: 5491: 5489: 5486: 5484: 5481: 5479: 5476: 5474: 5471: 5470: 5468: 5464: 5458: 5455: 5453: 5450: 5448: 5445: 5442: 5440: 5437: 5435: 5432: 5430: 5427: 5425: 5422: 5420: 5417: 5415: 5412: 5410: 5407: 5405: 5402: 5400: 5397: 5395: 5392: 5390: 5387: 5385: 5382: 5380: 5377: 5375: 5372: 5370: 5367: 5365: 5362: 5360: 5357: 5355: 5352: 5350: 5347: 5345: 5342: 5340: 5337: 5335: 5332: 5330: 5327: 5325: 5322: 5320: 5317: 5315: 5312: 5310: 5307: 5305: 5302: 5300: 5297: 5295: 5292: 5290: 5287: 5285: 5282: 5280: 5277: 5275: 5272: 5270: 5267: 5265: 5262: 5260: 5257: 5255: 5252: 5250: 5247: 5245: 5242: 5240: 5237: 5235: 5232: 5230: 5227: 5225: 5222: 5220: 5217: 5215: 5212: 5210: 5207: 5205: 5202: 5200: 5197: 5196: 5194: 5190: 5184: 5181: 5179: 5176: 5174: 5171: 5169: 5166: 5164: 5161: 5159: 5156: 5154: 5151: 5149: 5146: 5144: 5141: 5139: 5136: 5134: 5131: 5129: 5126: 5124: 5121: 5119: 5116: 5114: 5111: 5109: 5106: 5104: 5101: 5099: 5096: 5094: 5091: 5089: 5086: 5084: 5081: 5079: 5076: 5074: 5071: 5067: 5064: 5062: 5059: 5058: 5057: 5054: 5052: 5049: 5047: 5044: 5042: 5039: 5037: 5034: 5032: 5029: 5027: 5024: 5022: 5019: 5017: 5014: 5012: 5009: 5007: 5004: 5002: 4999: 4997: 4994: 4992: 4989: 4987: 4984: 4982: 4979: 4977: 4974: 4972: 4969: 4967: 4964: 4962: 4959: 4957: 4954: 4952: 4949: 4947: 4944: 4942: 4939: 4937: 4934: 4932: 4929: 4927: 4924: 4922: 4919: 4917: 4914: 4912: 4909: 4907: 4904: 4902: 4899: 4895: 4892: 4891: 4890: 4887: 4885: 4882: 4880: 4877: 4875: 4872: 4870: 4867: 4865: 4862: 4860: 4857: 4853: 4850: 4848: 4845: 4844: 4843: 4840: 4838: 4835: 4833: 4830: 4828: 4825: 4823: 4820: 4818: 4815: 4813: 4810: 4808: 4805: 4803: 4800: 4798: 4795: 4793: 4790: 4788: 4785: 4783: 4780: 4778: 4775: 4773: 4770: 4766: 4763: 4761: 4758: 4756: 4753: 4751: 4748: 4746: 4743: 4741: 4738: 4736: 4733: 4731: 4728: 4726: 4723: 4722: 4721: 4718: 4716: 4713: 4711: 4708: 4706: 4703: 4701: 4698: 4696: 4693: 4691: 4688: 4686: 4683: 4681: 4678: 4676: 4673: 4671: 4668: 4666: 4663: 4661: 4658: 4656: 4653: 4651: 4648: 4646: 4643: 4641: 4638: 4636: 4633: 4631: 4628: 4626: 4623: 4619: 4616: 4614: 4611: 4610: 4609: 4606: 4604: 4601: 4599: 4596: 4594: 4591: 4589: 4586: 4584: 4581: 4579: 4576: 4574: 4571: 4569: 4566: 4564: 4561: 4558: 4554: 4551: 4549: 4546: 4544: 4541: 4539: 4536: 4534: 4531: 4529: 4526: 4524: 4521: 4519: 4516: 4514: 4511: 4509: 4506: 4504: 4501: 4499: 4496: 4494: 4491: 4489: 4486: 4484: 4481: 4479: 4476: 4474: 4471: 4469: 4466: 4464: 4461: 4459: 4456: 4454: 4451: 4449: 4446: 4444: 4441: 4439: 4436: 4432: 4429: 4427: 4424: 4422: 4419: 4417: 4414: 4412: 4409: 4408: 4407: 4404: 4402: 4399: 4397: 4394: 4392: 4389: 4387: 4384: 4382: 4379: 4377: 4374: 4372: 4369: 4367: 4364: 4362: 4359: 4357: 4354: 4352: 4349: 4348: 4346: 4342: 4336: 4333: 4331: 4328: 4326: 4323: 4321: 4318: 4316: 4313: 4311: 4308: 4306: 4303: 4301: 4298: 4296: 4293: 4291: 4288: 4286: 4283: 4281: 4278: 4276: 4273: 4271: 4268: 4266: 4263: 4261: 4258: 4256: 4253: 4251: 4248: 4246: 4243: 4241: 4238: 4236: 4233: 4231: 4228: 4226: 4223: 4221: 4218: 4216: 4213: 4211: 4208: 4204: 4201: 4199: 4196: 4194: 4191: 4189: 4186: 4184: 4181: 4179: 4176: 4174: 4171: 4169: 4166: 4164: 4161: 4159: 4156: 4154: 4151: 4149: 4146: 4144: 4141: 4139: 4136: 4134: 4131: 4129: 4126: 4124: 4121: 4120: 4119: 4116: 4114: 4111: 4109: 4106: 4104: 4101: 4099: 4096: 4094: 4091: 4089: 4086: 4084: 4081: 4079: 4076: 4074: 4071: 4069: 4066: 4064: 4061: 4059: 4056: 4054: 4051: 4049: 4046: 4044: 4041: 4039: 4036: 4034: 4031: 4029: 4026: 4024: 4021: 4019: 4016: 4014: 4011: 4009: 4006: 4004: 4001: 3999: 3996: 3994: 3991: 3987: 3984: 3983: 3982: 3979: 3977: 3974: 3972: 3969: 3967: 3964: 3962: 3959: 3957: 3954: 3952: 3949: 3947: 3944: 3942: 3939: 3937: 3934: 3932: 3929: 3927: 3924: 3922: 3919: 3917: 3914: 3912: 3909: 3907: 3904: 3902: 3899: 3897: 3894: 3892: 3889: 3887: 3884: 3882: 3879: 3877: 3874: 3872: 3869: 3867: 3864: 3862: 3859: 3857: 3854: 3852: 3849: 3847: 3844: 3842: 3839: 3837: 3834: 3832: 3829: 3827: 3824: 3822: 3819: 3817: 3814: 3812: 3809: 3807: 3804: 3802: 3799: 3797: 3794: 3792: 3789: 3787: 3784: 3782: 3779: 3777: 3774: 3772: 3769: 3765: 3762: 3760: 3757: 3755: 3752: 3751: 3750: 3747: 3745: 3742: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3720: 3717: 3715: 3712: 3710: 3707: 3705: 3702: 3700: 3697: 3695: 3692: 3690: 3687: 3685: 3682: 3680: 3677: 3675: 3672: 3670: 3667: 3665: 3662: 3660: 3657: 3655: 3652: 3650: 3647: 3645: 3642: 3640: 3637: 3635: 3632: 3630: 3627: 3625: 3622: 3620: 3617: 3615: 3612: 3610: 3607: 3605: 3602: 3600: 3597: 3595: 3592: 3590: 3587: 3585: 3582: 3580: 3577: 3575: 3572: 3570: 3567: 3565: 3562: 3560: 3557: 3555: 3552: 3550: 3547: 3545: 3542: 3540: 3537: 3535: 3532: 3530: 3527: 3523: 3520: 3518: 3515: 3513: 3510: 3508: 3505: 3503: 3500: 3499: 3498: 3495: 3493: 3490: 3488: 3485: 3483: 3480: 3478: 3475: 3473: 3470: 3468: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3425: 3423: 3420: 3418: 3415: 3411: 3408: 3406: 3403: 3401: 3398: 3396: 3393: 3391: 3388: 3386: 3383: 3381: 3378: 3376: 3373: 3371: 3368: 3366: 3363: 3361: 3358: 3356: 3353: 3351: 3348: 3347: 3346: 3343: 3341: 3338: 3336: 3333: 3331: 3328: 3326: 3323: 3321: 3318: 3316: 3313: 3311: 3308: 3306: 3303: 3301: 3298: 3297: 3295: 3291: 3287: 3286:IEC standards 3283: 3279: 3278:ISO standards 3273: 3265: 3258: 3253: 3251: 3246: 3244: 3239: 3238: 3235: 3223: 3220: 3218: 3215: 3213: 3210: 3209: 3206: 3200: 3197: 3195: 3192: 3190: 3187: 3185: 3182: 3180: 3177: 3175: 3172: 3170: 3167: 3166: 3164: 3160: 3154: 3151: 3149: 3146: 3144: 3141: 3139: 3136: 3134: 3131: 3130: 3128: 3124: 3114: 3111: 3109: 3106: 3104: 3101: 3099: 3096: 3094: 3091: 3089: 3086: 3084: 3081: 3079: 3076: 3074: 3071: 3069: 3066: 3064: 3061: 3058: 3054: 3051: 3049: 3046: 3044: 3041: 3038: 3034: 3031: 3030: 3028: 3026: 3022: 3015: 3011: 3010: 3006: 3003: 3000: 2997: 2994: 2991: 2987: 2986: 2982: 2979: 2976: 2974: 2971: 2968: 2965: 2963: 2960: 2957: 2953: 2952: 2948: 2945: 2942: 2940: 2937: 2935: 2932: 2930: 2927: 2925: 2922: 2919: 2916: 2912: 2909: 2906: 2902: 2901: 2897: 2894: 2892: 2889: 2887: 2884: 2882: 2879: 2877: 2874: 2872: 2869: 2867: 2864: 2862: 2859: 2857: 2854: 2851: 2847: 2846: 2842: 2840: 2837: 2835: 2832: 2830: 2827: 2825: 2822: 2820: 2817: 2815: 2812: 2810: 2807: 2805: 2802: 2800: 2797: 2795: 2792: 2790: 2787: 2785: 2782: 2780: 2777: 2776: 2774: 2771: 2766: 2762: 2756: 2753: 2751: 2748: 2746: 2743: 2741: 2738: 2736: 2733: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2706: 2703: 2701: 2698: 2696: 2693: 2691: 2688: 2686: 2683: 2681: 2678: 2676: 2673: 2671: 2668: 2666: 2663: 2661: 2658: 2656: 2653: 2651: 2648: 2646: 2643: 2641: 2638: 2636: 2633: 2631: 2628: 2626: 2623: 2621: 2618: 2616: 2613: 2611: 2610: 2606: 2604: 2601: 2599: 2596: 2594: 2591: 2589: 2586: 2584: 2583: 2579: 2577: 2574: 2572: 2569: 2567: 2564: 2562: 2559: 2557: 2556: 2552: 2550: 2547: 2545: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2525: 2522: 2520: 2517: 2515: 2512: 2510: 2507: 2505: 2502: 2500: 2497: 2495: 2492: 2490: 2487: 2485: 2482: 2480: 2477: 2476: 2474: 2471: 2466: 2462: 2456: 2453: 2450: 2446: 2443: 2441: 2438: 2436: 2433: 2431: 2428: 2426: 2423: 2421: 2418: 2416: 2413: 2411: 2408: 2406: 2403: 2401: 2398: 2396: 2393: 2391: 2388: 2386: 2383: 2381: 2378: 2376: 2373: 2371: 2368: 2366: 2363: 2361: 2358: 2356: 2353: 2352: 2350: 2348: 2344: 2338: 2335: 2333: 2330: 2328: 2325: 2323: 2320: 2318: 2315: 2313: 2310: 2306: 2305:WiMAX · d · e 2303: 2302: 2301: 2298: 2296: 2293: 2291: 2288: 2286: 2283: 2281: 2278: 2276: 2273: 2271: 2268: 2266: 2263: 2261: 2258: 2256: 2253: 2251: 2248: 2247: 2245: 2243: 2239: 2236: 2234: 2230: 2224: 2221: 2219: 2216: 2214: 2211: 2209: 2206: 2204: 2201: 2199: 2196: 2194: 2191: 2189: 2186: 2184: 2181: 2179: 2176: 2174: 2171: 2169: 2166: 2164: 2161: 2159: 2156: 2154: 2151: 2149: 2146: 2144: 2141: 2139: 2136: 2134: 2131: 2129: 2126: 2124: 2121: 2119: 2116: 2114: 2111: 2109: 2106: 2104: 2101: 2099: 2096: 2094: 2091: 2089: 2086: 2084: 2081: 2079: 2076: 2074: 2071: 2069: 2066: 2064: 2061: 2059: 2056: 2054: 2051: 2049: 2046: 2044: 2041: 2039: 2036: 2034: 2031: 2029: 2026: 2024: 2021: 2019: 2016: 2014: 2011: 2009: 2006: 2004: 2001: 1999: 1996: 1994: 1991: 1989: 1986: 1984: 1981: 1979: 1976: 1974: 1971: 1969: 1966: 1964: 1961: 1957: 1954: 1953: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1933: 1931: 1927: 1923: 1916: 1911: 1909: 1904: 1902: 1897: 1896: 1893: 1881: 1873: 1871: 1863: 1862: 1859: 1853: 1850: 1848: 1845: 1843: 1840: 1838: 1835: 1833: 1830: 1828: 1825: 1824: 1822: 1818: 1808: 1805: 1803: 1800: 1798: 1795: 1793: 1790: 1789: 1787: 1783: 1777: 1774: 1772: 1771:Systems model 1769: 1767: 1764: 1762: 1759: 1757: 1754: 1752: 1749: 1747: 1744: 1742: 1739: 1737: 1734: 1732: 1729: 1728: 1726: 1722: 1716: 1713: 1711: 1708: 1706: 1703: 1701: 1698: 1696: 1693: 1691: 1688: 1686: 1683: 1681: 1678: 1676: 1673: 1671: 1668: 1666: 1663: 1661: 1658: 1656: 1653: 1651: 1648: 1646: 1643: 1642: 1640: 1638:Developmental 1636: 1633: 1629: 1623: 1620: 1618: 1615: 1613: 1610: 1608: 1605: 1603: 1600: 1598: 1595: 1594: 1592: 1588: 1582: 1579: 1575: 1572: 1571: 1570: 1567: 1565: 1562: 1560: 1557: 1555: 1552: 1550: 1547: 1545: 1542: 1540: 1537: 1535: 1532: 1530: 1527: 1525: 1522: 1520: 1517: 1515: 1512: 1510: 1507: 1505: 1502: 1500: 1499:Data modeling 1497: 1493: 1490: 1488: 1485: 1483: 1480: 1478: 1475: 1473: 1470: 1469: 1468: 1465: 1463: 1460: 1458: 1455: 1454: 1452: 1448: 1442: 1439: 1437: 1434: 1432: 1429: 1427: 1424: 1422: 1419: 1417: 1414: 1412: 1409: 1407: 1404: 1402: 1399: 1397: 1394: 1392: 1389: 1387: 1384: 1382: 1379: 1377: 1374: 1373: 1371: 1367: 1363: 1356: 1351: 1349: 1344: 1342: 1337: 1336: 1333: 1321: 1318: 1317: 1314: 1308: 1305: 1303: 1300: 1298: 1295: 1293: 1290: 1288: 1285: 1283: 1280: 1278: 1275: 1273: 1270: 1269: 1267: 1263: 1257: 1254: 1252: 1249: 1247: 1244: 1242: 1239: 1237: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1217: 1214: 1212: 1211:Barbara Grosz 1209: 1207: 1206:Wolt Fabrycky 1204: 1202: 1199: 1197: 1194: 1192: 1189: 1187: 1184: 1182: 1181:Ruzena Bajcsy 1179: 1177: 1174: 1173: 1171: 1167: 1161: 1158: 1156: 1153: 1151: 1148: 1146: 1143: 1141: 1138: 1136: 1133: 1131: 1128: 1126: 1123: 1121: 1118: 1116: 1113: 1112: 1110: 1106: 1100: 1097: 1095: 1092: 1090: 1087: 1085: 1082: 1080: 1077: 1075: 1072: 1071: 1069: 1065: 1059: 1056: 1054: 1053:Design review 1051: 1049: 1046: 1044: 1041: 1039: 1036: 1034: 1031: 1030: 1028: 1024: 1018: 1015: 1013: 1010: 1008: 1005: 1003: 1000: 998: 995: 993: 990: 988: 985: 983: 980: 978: 975: 973: 970: 968: 965: 963: 960: 959: 957: 953: 949: 942: 937: 935: 930: 928: 923: 922: 919: 913: 912:IEEE Spectrum 909: 906: 904: 901: 898: 895: 893: 890: 887: 881: 869: 861: 855: 851: 847: 843: 842: 837: 836: 832: 823: 819: 815: 811: 807: 803: 798: 793: 789: 785: 778: 775: 770: 757: 749: 745: 741: 734: 731: 726: 722: 718: 714: 709: 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requirements
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IEEE Computer Society
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waterfall model
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International Council on Systems Engineering
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