有关第四版微机原理课后答案，希望可以帮到大家做题

该文档为第4版光机系统设计的英文版本，是在原第三版基础上进行修订的。

黄梯云的《管理信息系统》第四版教材完全相同，不是PPT，而是网页格式

Hadoop权威指南第四版【英文原版+中文版+配套的代码】，高清版带书签索引，堪称完美，学习价值非常高！！！内容以Hadoop2.x为主，包含一些hadoop的stable版本的新特性，与以前版本比较增加了介绍YARN,Parquet,Flume,Crunch,Spark的章节。
适合于Hadoop初学者。

习1-8什么是算法？怎样描述算法？怎样衡量算法的性能？【答】算法是对问题求解过程的一种描述，是为解决一类问题给出的一个确定的、有限长的操作序列。
算法特征包括：有穷性、确定性、输入、输出和可行性。
可以采用自然语言或伪码描述算法的设计思想，采用程序设计语言实现算法。
采用渐进分析法衡量算法性能，用时间复杂度O(f(n))表示所花费时间的量级，即时间效率；
用空间复杂度O(S(n))表示算法执行过程中所需要的额外空间。

数字通信第四版pdfProakis

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带书签，直接用浏览器阅读。

IT项目管理（英文版.第四版）/（美）施瓦尔布（Schwalbe，K.）著.—北京:机械工业出版社，2006.7（经典原版书库）课后习题答案语言——英文Class130613Team3MadeByWangWanHongorganizationscollectandcontrolanentiresuiteofprojectsorinvestmentsasonesetofinterrelatedactivitiesinaportfolio.Theprojectportfoliomanagementingeneralisdividedintofivelevels,fromthesimpletothecomplexare:1]Putalltheitemsintoadatabase2Settingprioritiesfortheitemsinthedatabase3]Accordingtothedifferenttypeofinvestment,theseitemsweredividednto2-3Budget4RunKnowledgebaseautomatically5ApplythemodernPortfolioTheory7.WhataretheskillsrequiredforProjectManagers?Answer:Projectmanagersneedawidevarietyofskills.Theyneedbothhard"andsoftskillsHardskillsincludeproductknowledgeandknowinghowtousevariousprojectmanagementtoolsandtechniquesoSoftskillsincludebeingabletoworkwithvarioustypesofpeople.1)Communicationskills:Listens,persuades2)Organizationalskills:Plans,setsgoals,analyzes3)Team-buildingskills:Showsempathy(同感,共鸣),motivates,promotesespritdecorps4)Leadershipskills:Setsexamples,providesvision(bigpicture),delegatespositive,energetic5]Copingskills:Flexible,creative,patient,persistent6Technologyskills:Experience,projectknowledge8.ExpandPMiandPMP?AnswerPMI:ProjectManagementInstitutePMP:ProjectManagementProfessionaChapter-21.ExplainSystemApproachofProjectmanagement?AnswersSystemsapproachdescribesaholistic(A])andanalyticalapproachtoPage3Class130613Team3MadeByWangWanHongsolvingcomplexproblemsThreepartsinclude:Systemsphilosophy:Viewthingsassystems,whichareinteracting(fh互作用)componentsthatworkwithinanenvironmenttofulfillsomepurposeSystemsanalysisisaproblem-solvingapproach1)Definethescopeofthesystem2Divideintocomponents3Identifyandevaluatingsystemproblems,opportunities,constraintsandneeds4]Examinealternativesolutionforimprovingthecurrentsituation5)Identify(f)ansolutionoractionplanandexaminethatplanagainsttheentiresySystemsmanagement:Addressbusiness,technological,andorganizationalissuesassociatedwithcreating,maintaining,andmakingchangestosystems1Identifyandsatisfythekeystakeholders2Doingthebestfortheorganization2.Whatarethethreebasicorganizationalstructures?Answer:Threegeneralclassificationsoforganizationalstructuresarefunctional,project,andmatrix.Afunctionalorganizationalstructureisthehierarchy.Functionalmanagersorvicepresidentsinspecialtiesreporttotheceo.Thestaffshavespecializedskills.Aprojectorganizationalstructurealsohasahierarchicalstructure,buttheirprogrammanagersreporttotheceoAmatrixorganizationalstructurerepresentsthemiddlegroundbetweenfunctionalandprojectstructures3.DrawandexplainthephasesofthetraditionalprojectLifeCycle?Answer:Page4Class130613Team3MadeByWangWanHongProjectFeasibilityProjectAcquisitionConceptDevelopmentImplementationClose-outFigurePhasesofthetraditionalprojectlifecycleIntheconceptphaseofaproject,managersusuallybrieflydescribetheproject-theydevelopaveryhigh-levelorsummaryplanfortheproject,whichdescribestheneedforprojectandbasicunderlyingconceptInthedevelopmentphase,theprojectteamcreatesmoredetailedprojectplans,amoreaccuratecostestimate,andamorethoroughwbsIntheImplementationphase,theprojectteamcreatesadefinitiveorveryaccuratecostestimate,deliverstherequiredwork,andprovidesperformancereportstostakeholdersIntheclose-outphase,alloftheworkiscompleted,andthereshouldbesomesortofcustomeracceptanceoftheentireproject4.Whatarephaseexits?Answer:phaseexitsarethephase-endreviewofkeydeliverablesthatallowtheorganizationtoevaluatetheprojectsperformanceandtotakeimmediateactiontocorrectanyerrorsorproblems5.Howcantopmanagementhelpprojectmanagers?Answer:TopmanagementcanhelpprojectmanagersinthefollowingwaysTheprojectmanagerneedsadequate(足够的)resourcesThebestwaytokillaprojectistowithhold(E)therequiredmoney,humanresources,andvisibilityfortheproject.Iftheprojectmanagershavetopmanagementcommitment,theywillalsohaveadequateresourcesandnotbedistractedbyeventsthatdonotaffecttheirspecificprojectsProjectmanagersoftenrequireapprovalforuniqueprojectneedsinatimelymannerProjectmanagersmusthavecooperationfrompeopleinotherpartsofthePage5Class130613Team3MadeByWangWanHongorganizationProjectmanagersoftenneedsomeonetomentorandcoachthemonleadershipissuesChapter-31.ExplainProjectmanagementprocessgroups?AnswerInitiatingPlanningExecutingandControllingClosingProcessProcessProcessProcessProcessGroupGrouproupGroupGroupActivityStartFinishTimeMonitoringInitiatingExecutingandClosingControllig∩,,PlanningkProjectmanagementprocessgroupsprogressfrominitiationactivitiestoplanningactivities,executingactivities,monitoringandcontrollingactivities,andclosingactivities.Initiatingprocessesincludedefiningandauthorizingaprojectorprojectphase.Planningprocessesincludedevisingandmaintainingaworkablescheme.ExecutingprocessesincludecoordinatingpeopleandotherresourcesMonitoringandcontrollingprocessesincluderegularlymeasuringandmonitoringprogresstoensurethattheprojectteammeetstheprojectobjectives.ClosingprocessesincludeformalizingacceptanceoftheprojectorprojectphaseandendingitefficientlyPage6Class130613Team3MadeByWangWanHongChaptter-41.DrawProjectManagementFramework?Answer:TheProjectManagementFrameworkisProjectPortfolioProject1Project9KnowledgeAreasToolsandProject3EySEnterpriseProject4uccessCorefunctionstechniquesProject5TimeCostQualityProject6MatMgt.MgtMat1gProjectIntegrationManagementProjectStakeholders'SuccessedsandexpectatonsHRComm.RiskProcure.G++MatMatMgtMatFacilitatingFunctions2.ListthevariousProjectIntegrationManagementProcesses?Answer1)Developtheprojectcharter,whichinvolvesworkingwithstakeholderstocreatethedocumentthatformallyauthorizesaproject-thecharter2)Developthepreliminaryprojectscopestatement,whichinvolvesurtherworkwithstakeholders,especiallyusersoftheproject'sproducts,services,orresults,todevelopthehigh-levelscoperequirements.Theoutputofthisprocessistheprocessisthepreliminaryprojectscopestatement3Developtheprojectmanagementplan,whichinvolvescoordinatingallplanningeffortstocreateaconsistent,coherentdocument-theprojectmanagementplan4Directandmanageprojectexecution,whichinvolvescarryingouttheprojectmanagementplanbyperformingtheactivitiesincludedinit.Theoutputsofthisprocessaredeliverables,requestedchanges,workperformanceinformation,implementedchangerequest,correctiveactions,preventiveactions,anddefectrepair.5)Monitorandcontroltheprojectwork,whichinvolvesoverseeingPage7Class130613Team3MadeByWangWanHongprojectworktomeettheperformanceobjectiveoftheproject.Theoutputsofthisprocessarerecommendeddefectrepair,andrequestedchanges6)Performintegratedchangecontrol,whichinvolvescoordinatingchangesthataffecttheproject'sdeliverablesandorganizationalprocessassets.Theoutputsofthisprocessincludeapprovedandrejectedchangerequests,approvedcorrectiveandpreventiveactions,approvedandvalidateddefectrepair,deliverables,andupdatestothepIrojectmanagementplanandprojectscopestatement.7Closetheproject,whichinvolvesfinalizingallprojectactivitiestoformallyclosetheprojectOutputsofthisprocessincludefinalproducts,services,orresults,administrativeandcontractclosureprocedures,andupdatestoorganizationalprocessassets3.WhatisSWotanalysis?Answer:SWOTAnalysisisastrategicplanningmethodusedtoevaluatetheStrengths,Weaknesses,Opportunities,andThreatsinvolvedinaprojectorinabusinessventure.Itinvolvesspecifyingtheobjectiveofthebusinessventureorprojectandidentifyingtheinternalandexternalfactorsthatarefavorableandunfavorabletoachievingthatobjective4.WhatisaProjectcharterdocument?Answer:Aprojectcharterisadocumentthatformallyrecognizestheexistenceofaprojectandprovidesdirectionontheproject'sobjectivesandmanagement5.Whatisscopestatementdocument?Answer:ScopeStatementisadocumentfortherighttoreachacommonunderstandingofprojectscopeaswellastheconfirmation.Itdescribesindetailwhatworkshouldbeaccomplishedintheproject,andisanimportanttooltopreventthespreadofthescope.Scopestatementshouldincludetheoverallprojectobjectivesanddescription,productdescription,allprojectdeliverables,aswellasasynthesisofthedeterminantsofsuccessoftheprojectdescriptions6.Whatisscopecreeps?Answer:Scopecreepisthetendencyofaprojecttoincludemoretasksortoimplementmoresystemsthanoriginallyspecified,whichoftenleadstoPage8Class130613Team3MadeByWangWanHonghiigherthanplannedprojectcostsandanextensionoftheinitialimplementationdate.Inotherwordsitbasicallymeansafeaturethatwasinitiallythoughttobesimplethat'sexplodinginscale7.Whatarethecommonelementsofaprojectmanagementplan?AnsweroIntroductionoroverviewoftheproject1)Projectname2Projectdescriptionitsneed3Sponsor'sname4NamesofthePMProjectTeamdEliverables6Listofreferencematerials7)ListofdefinitionsandacronymsoDescriptionofhowtheprojectisorganizedOrganizationalcharts2Projectresponsibilities3Otherorganizationalorprocess-relatedinformationManagementandtechnicalprocessesusedontheproject1)ManagementobjectivesProjectControls3RiskManagement4staffing5TechnicalProcessesoWorktobedone,schedule,andbudgetinformation1)Majorworkpackages2)Keydeliverables3)Otherwork-relatedinformation4Summaryschedule5Detailedschedule6Otherschedule-relatedinformation7Summarybudgets8Detailedbudget9)OtherbudgetrelatedinformationPage9Class130613Team3MadeByWangWanHong8.Whatisstakeholderanalysis?Answer:Stakeholderanalysisisanimportanttechniqueforstakeholderidentificationanalyzingtheirneeds.Itisusedtoidentifyallkeystakeholderswhohavevestedinterestintheissueswithwhichtheprojectisconcerned.Theaimofstakeholderanalysisprocessistodevelopastrategicviewofthehumanandinstitutionallandscape,andtherelationshipsbetweenthedifferentstakeholdersandtheissuestheycareaboutmost9.ExplainCCBsAnswer:CCBisaChangeControlBoardforshort.CCBsprovideguidelinesforpreparingchangerequests,evaluatechangerequests,andmanagetheimplementationofapprovedchanges10.Explain48-hourspolicy?Answer:A"48-hourpolicy"canhelptaskleadersonalargeinformationtechnologyprojectreachagreementsonkeydecisionsorchangeswithintheirexpertiseandauthority.Itallowsprojectteammemberstomakeadecisionandhave48hourstoseekapprovalfromtopmanagement.Iftheteamdecisioncannotbeimplemented,managementhas48hourstoreverseadecision;otherwise,theteamsdecisionisapprovedChapter-51.WhatisProjectScopeManagement?Answer:Projectscopemanagementisthedefinitionaboutwhatisincludedandwhatisnotincludedintheprojectandtheprocessofcontrolling.Thisprocessensuresthattheprojectteamandstakeholdershaveacommonunderstandingoftheprojectproductsastheprojectresultandtheprocessesusedinproducingtheseproducts.Themainprocessesare:Scopeplan;Scopedefinition;CreateWBS;Scopeconfirm;Scopecontrol2.ListthevariousProjectscopemanagementProcesses?AnswereScopeplanningDecidinghowthescopewillbedefined,verified,andcontrolledandhowthewbswillbecreatedPage10

CISSPCBK知识点自2015年4月15号已更新并生效，详见CISSP官网资料https://www.isc2.org/cissp-sscp-domains-faq/default.aspx故现在上传最新版本的CISSPCBK第四版（最新版）给大家复习。

通信系统(西蒙·赫金第四版)中文版。
通信专业借鉴借鉴啊

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。