【英文标准名称】:StandardGuideforRapidPrototypingofInformationSystems
【原文标准名称】:信息系统快速原型法的标准指南
【标准号】:ASTME1340-2005(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:E31.25
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:design;documentation;evaluation;informationsystem;ProjectManagementPlan;rapidprototyping;requirement;subprojects;systemarchitecture;systemdesign;systemdevelopment;Computerizedsystems;Databasedesign/development/structure;Documen
【摘要】:RapidPrototyping(RP)isaspecificLifeCycleModelusedtodevelopaninformationsystemwhichproducesaworkingmodelofthesystemveryquickly.TheRPprocessshowninFig.1hasmanysimilarities,andsomedifferencesfromtheconventionalsystem(WaterfallLifeCycleModel)developmentprocessshowninFig.2.RPreplacestheRequirementsandDesignprocessesoftheconventionalmethodwithaniterativeprocessofprototyperefinement.Wherethephasesoftheconventionalmethodproduceasetofdocumentsthatdescribethesystem,RPproducesaprototype.Theprototypeistestedandrefinedthroughseveraliterations,withintenseinteractionbetweensystemusersanddevelopers.RPisanexperimentalapproachtosystemdevelopmentwhichprovidesalearningdevice,theprototype,forusersanddevelopers.AprototypecanbeusedasatoolforclarifyingRequirementsfortheoperationalsystem,asameansofevaluatingadesignapproach,orasadevelopingseriesofversionsoftheoperationalsystem.Aprototypeissometimesusedasanexactbehavioralspecificationforanoperationalsystemwhichreplacesit.QualitycharacteristicsareoftensacrificedduringRPforthesakeofrapiddevelopmentandlowcost;robustness,efficiency,generality,portability,andmaintainabilityarecommonlyignoredbutnoneoftheseaspectsneedtobeneglected.However,documentationneededtousethesystemcannotbeignoredbutnoneoftheseaspectsneedtobeneglected.Ax201C;Throwawayx201D;prototypeisusedspecificallytodefineRequirementswhichareusedtoimplementafinalsystem.Anx201C;Evolutionaryx201D;prototypeisaprototypicalsystemusedforongoingrefinementofRequirementswhileoperationalversionsatspecificmilestonesareusedinproductionsettings.RapidinRPmeansthatthetimebetweensuccessiveversionsoftheprototypeisrelativelyshort.Itshouldbeshortenoughthat(1)bothusersanddeveloperscanrememberhoweachversionrelatestothepreviousonewithoutwrittennotes,(2)userrequirementsdonotchangesignificantlywhileaversionisbeingdeveloped,(3)theprototypingteamwillremainintheprojectthroughtheRPphase,and(4)totaltimetodevelopthesystemisacceptable.(Expectedprojectdurationshouldbestatedintheprojectmanagementplanningdocument.SeeSection6andANSI/IEEE1058andANSI/IEEE1074.)Afewdaysbetweenversionsisadequateandafewweeksmaybeacceptable.Ifthetimeneededtoproduceanewversionislonger,thenitmaybenecessarytoproducethatversionusingaconventionalsystemdevelopmentmethodwithfulldocumentationofrequirementsanddesign(seeAppendixX3).RPintegratesanalysis,designandconstruction,anddefinesRequirementsduringtheprocess.Itisespeciallyappropriatefordealingwithproblemswhicharenotwellunderstoodorarerapidlychanging.Theprototypefocusescommunicationbetweenusersanddevelopers.Forlargesystems,aRPapproachcanbeusedatahighleveltoexploretheoverallsystemarchitectureorfeasibility.Itcanalsobeusedtodevelopsubsystemsandcomponentswhoserequirementsarenotfullyunderstood(seeSection11).RPisespeciallywellsuitedfordevelopinguser-systeminterfaces.WhattoPrototype8212;Theill-structuredsystemdevelopmentproblemsthatyieldbesttoRPinclude:Decisionsupportsystemsinareaswherethestateofknowledgechangesrapidly,forexample,researchorclinicalpractice,Systemswhoseusersneedtoaccessand...........
【中国标准分类号】:L77
【国际标准分类号】:35_080
【页数】:12P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 通用卡箍 双面固定卡箍 |
| 中标分类： |
航空、航天 >>
航空器与航天器零部件 >>
管件、卡箍、密封件 |
| ICS分类： |
航空器和航天器工程 >>
航空航天用零部件
|
| 替代情况： | QJ 188-78 |
| 发布日期： | 1995-05-31 |
| 实施日期： | 1995-10-30 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 3页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 航空 航天 航空器与航天器零部件 管件 卡箍 密封件 航空器和航天器工程 航空航天用零部件