Research on blockchains addresses multiple issues,with one being the automated creation of smart contracts.Developing smart contract methods is more difficult than mainstream software development as the underlying blo...Research on blockchains addresses multiple issues,with one being the automated creation of smart contracts.Developing smart contract methods is more difficult than mainstream software development as the underlying blockchain infrastructure poses additional complexity.We report on a new approach to developing smart contracts with the objective of automating the process to increase developer efficiency and reduce the risk of errors introduced by software developers.To support industry adoption,we use Business Process Model and Notation(BPMN)modeling to describe an application while targeting applications in the trade vertical.We describe a system that transforms a BPMN model into a multi-modal model that combines Discrete Event(DE)modeling for concurrency with Hierarchical State Machines(HSMs)to represent application functionality.Then,further transformations are used to transform the DE-HSM model into methods in smart contracts.The system lets the modeler decide which of the independent patterns should be transformed into methods of a separate smart contract that is deployed on a sidechain for the purpose of(i)reducing processing costs and/or(ii)providing privacy so that other participants in the smart contract do not have visibility into the processing of the pattern.We also briefly describe a proof-of-concept tool we built to demonstrate the feasibility of our approach.展开更多
BPMN(Business Process Modeling Notation)作为一个在系统开发早期阶段获取业务过程模型的标准,指导系统的设计和开发,其模型的正确性是影响软件开发质量的关键。鉴于BPMN模型的形式化可以验证模型的正确性,提出了一种利用扩展Petri网...BPMN(Business Process Modeling Notation)作为一个在系统开发早期阶段获取业务过程模型的标准,指导系统的设计和开发,其模型的正确性是影响软件开发质量的关键。鉴于BPMN模型的形式化可以验证模型的正确性,提出了一种利用扩展Petri网模型,应用模型驱动技术实现BPMN模型形式化自动执行的方法。该方法通过细化Petri网模型中的Transition和Place元素以及增加Organization Identifier和Group Identifier容器,使其不但能够描述BPMN模型中的动态行为,而且还能描述BPMN模型中的动态行为协作和静态组织结构。从元模型结构、语法和图标记方面详细分析了扩展的Petri网模型元素,利用模型驱动开发技术设计BPMN模型元素至扩展的Petri网模型元素的转换规则,并在Eclipse平台上使用ATL模型转换语言执行映射,实现形式化的自动执行。最后在此基础上应用Travel Agency系统演示了模型形式化插件BPMN2ExtendPetrinets的执行结果。展开更多
业务流程建模是业务流程管理(Business Process Management,BPM)中最为重要的环节,一个好的建模语言对业务流程的建模和开发起到非常关键的作用。各具特色的业务过程建模语言不断出现,对语言的研究、分析和比较已经成为流程设计与流程...业务流程建模是业务流程管理(Business Process Management,BPM)中最为重要的环节,一个好的建模语言对业务流程的建模和开发起到非常关键的作用。各具特色的业务过程建模语言不断出现,对语言的研究、分析和比较已经成为流程设计与流程实现之间的一个重要问题。介绍了一种新的业务流程建模语言DSC(Dynamic SystemChart),并将DSC和目前比较流行的建模语言BPMN(Business Process Modeling Notation)做了比较分析。展开更多
文摘Research on blockchains addresses multiple issues,with one being the automated creation of smart contracts.Developing smart contract methods is more difficult than mainstream software development as the underlying blockchain infrastructure poses additional complexity.We report on a new approach to developing smart contracts with the objective of automating the process to increase developer efficiency and reduce the risk of errors introduced by software developers.To support industry adoption,we use Business Process Model and Notation(BPMN)modeling to describe an application while targeting applications in the trade vertical.We describe a system that transforms a BPMN model into a multi-modal model that combines Discrete Event(DE)modeling for concurrency with Hierarchical State Machines(HSMs)to represent application functionality.Then,further transformations are used to transform the DE-HSM model into methods in smart contracts.The system lets the modeler decide which of the independent patterns should be transformed into methods of a separate smart contract that is deployed on a sidechain for the purpose of(i)reducing processing costs and/or(ii)providing privacy so that other participants in the smart contract do not have visibility into the processing of the pattern.We also briefly describe a proof-of-concept tool we built to demonstrate the feasibility of our approach.
文摘业务流程建模是业务流程管理(Business Process Management,BPM)中最为重要的环节,一个好的建模语言对业务流程的建模和开发起到非常关键的作用。各具特色的业务过程建模语言不断出现,对语言的研究、分析和比较已经成为流程设计与流程实现之间的一个重要问题。介绍了一种新的业务流程建模语言DSC(Dynamic SystemChart),并将DSC和目前比较流行的建模语言BPMN(Business Process Modeling Notation)做了比较分析。
