模型驱动的软件开发PPT学习课件

模型驱动软件开发,IBM软件部,2,内容,软件建模的层次部分建模完全建模MDDMDD的实现机制(MDDFramework)ProfilePatternTransformation管理MDD的项目组织/等待一秒钟timer1=timer1+1000;timer2=timer2+1000;if(timer1=TIMER_COUNT1)/定时器1计时触发检查timer1=0;/定时器1复位call_check_buffer();/检查数据缓冲区if(timer2=TIMER_COUNT2)timer2=0;call_billing_process();/启动计费处理while(true);/循环,25,Command设计模式,Client创建一个ConcreteCommand并且指定它的receiverInvoker对象拥有指向ConcreteCommand对象的句柄Invoker调用Command的execute()ConcreteCommand调用receiver的action()来执行相关的服务请求,26,Command设计模式在本例中的应用,27,用类图(ClassDiagram)来表达系统静态结构,28,内容,软件建模的层次部分建模完全建模MDDMDD的实现机制(MDDFramework)ProfilePatternTransformation管理MDD的项目组织publicclassMyClassTemplateprotectedfinalStringNL=System.getProperties().getProperty(line.separator);protectedfinalStringTEXT_1=“Printtoscreen;publicStringgenerate(Objectargument)StringBufferstringBuffer=newStringBuffer();stringBuffer.append(TEXT_1);returnstringBuffer.toString();,JETTemplateImplementation,MyClassTemplatemyclass=newMyClassTemplate();Stringproduct=myclass.generate(null);System.out.println(product);,RuleCode,Generates,Calls,42,JavaEmitterTemplates(cont.),KeyJETAPIclasses:JETNatureJETEmitterJETCompilerJETBuilderCodeGen,TemplateImplementationSource(.java),TemplateImplementationClass(.class),GeneratedJavaSource(.java),JETEmitter:,JavaBuilder:,JETEmitter:,43,内容,软件建模的层次部分建模完全建模MDDMDD的实现机制(MDDFramework)ProfilePatternTransformation管理MDD的项目组织&角色MDD流程工具平台,44,MDD中的两项主要工作,MDDFramework的开发主要是对可重复实践的总结和自动化设计一种针对应用领域的DSL，使得主要的应用逻辑能够用该DSL来表述把一些重复性的(copy/paste)工作用工具来自动化开发UMLProfile,Pattern,Transformation来构建MDDFramework应用软件开发应用构建的MDDFramework来构造应用软件组件和系统,45,MDD工具项目和业务应用项目之间的关系,现有的软件系统,MDD工具项目,业务应用项目,建模能力生成工具,业务应用逻辑,软件建模工具平台,可重用软件资产,46,内容,软件建模的层次部分建模完全建模MDDMDD的实现机制(MDDFramework)ProfilePatternTransformation管理MDD的项目组织上的准备流程上的准备工具平台的准备,47,角色和职责,模式规约创作者,所有开发人员,模式用户,模式创作者(SubjectMatterExpert),所有业务分析人员,Developsthemicrotoolthatimplementsthepattern,模式实现者,Writesthedocumentthatdescribesthepatternindepth,资产库管理员,Maintainsandarchivesassetsfortheorganization,48,Team举例,Jean-PierreSchoch,CourbevoieFranceUXModelingtoWebApplicationTransformationJSF,HibernateExpert模式用户,SteveHovater,Portsmouth,NHUSATraceViewsEclipse&IBMRationalSoftwareArchitectExtensibilityExpert模式规范创作者,CindyVanEpps,Houston,TXUSAMasterDetailUMLPattern&AnalysistoDesignTransformationUML&IBMRationalSoftwareArchitectPatternsExpert模式实现者,KatrinaKolonay,Requirements,ProjectManagement,Logistics模式创作者,资产库管理者,49,MDD项目计划执行流程,创建方案架构,定义运行时环境,确定一个与运行环境无关的组件模型,确定公用的模式和标准,确定现有的MDD资产中那些是可重用的,从工件样本中抽取模板,设计/编码/测试转换(Transform),产生文档培训开发人员,通用关键场景来确认工具集,定义工具集,培训开发人员使用MDD工具集,开发业务应用,50,MDD流程示例,捕获模式需求,架构规程及模式,Frameworkdev,applicationdev,创建样例组件,开发模型约定,实现模式,工件模板,UMLprofile,模式,实现转换,转换,应用建模,应用模型,使用转换,实现工件,51,MDD的工具平台,Model工具RSA重用资产共享管理平台RAM,52,53,54,Documentation:Inorganizationsthatfollowaformaldevelopmentapproach,theproductionofdocumentationtakesasignificantamountofdevelopmenteffort.Keepingdocumentationinlinewiththeimplementationisnotoriouslydifficult.WhenusingMDD,documentsaregeneratedfrommodelsensuringconsistencyandmakinginformationavailablewithinthemodelsthatdevelopersareworkingwithonadailybasis,ratherthanindocumentsthataredifficulttonavigate.Testartifacts:Itispossibletogeneratebasictestharnesses(forexample,usingJUnit)fromtheinformationcontainedinsoftwaremodels.Ifadditionaltest-specificmodelingiscarriedout(forexample,usingtheUMLProfileforTesting)thencompletetestimplementationsaregenerated.Model-basedtestingisadisciplinethatisconcernedwithgeneratingtestsfrommodels.Buildanddeploymentscripts:Usingtheirexpertise,buildanddeploymentarchitectscancreatetransformationstogeneratebuildanddeploymentscripts.Othermodels:Asysteminvolvesmanyinterdependentmodelsatdifferentlevelsofabstraction(analysis,design,implementation),representingdifferentpartsofthesystem(UI,database,businesslogic,systemadministration),differentconcerns(security,performance,andresilience),ordifferenttasks(testing,deploymentmodeling).Inmanycases,itispossibletopartiallygenerateonemodelfromanother,forexamplemovingfromananalysismodeltoadesignmodel,orfromanapplicationmodeltoatestmodel.Patternapplication:Patternscapturebestpracticesolutionstorecurringproblems.P