英语翻译The need to compose individual Web Services into largeraggregates requires a model for the composition of WebServices,potentially from different organizations,and adescription language for the specification of compositions.Multiple propos

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英语翻译TheneedtocomposeindividualWebServicesintolargeraggregatesrequiresamodelforthecompositionofWebSer

英语翻译The need to compose individual Web Services into largeraggregates requires a model for the composition of WebServices,potentially from different organizations,and adescription language for the specification of compositions.Multiple propos
英语翻译
The need to compose individual Web Services into larger
aggregates requires a model for the composition of Web
Services,potentially from different organizations,and a
description language for the specification of compositions.
Multiple proposals have been made,among them WSFL
and XLANG.IBM has proposed the Web Services Flow
Language (WSFL) as a graph-oriented Web Service composition
language.WSFL allows a workflow-like specification
language style – the language shares many properties
with the specification language of IBM’s MQSeries Workflow
system.Microsoft has proposed XLANG as an extension
to WSDL to allow the orchestration of Web Services.
In XLANG,WSDL definitions can be amended by control
flow expressions that define the sequencing,repetition and
other interdependencies of operations defined in ports of a
WSDL file.The Business Process Execution Language for
Web Services (BPEL4WS or BPEL for short) [17] has been
proposed by IBM and Microsoft to supersede XLANG
and WSFL as a common approach to Web Services composition.
Although it is labeled as ‘‘work in progress’’ by
the authors,it contains a rich set of constructs to describe
business processes.
The objective of BPEL is to define business protocols
that orchestrate the invocation of Web Services among a
set of parties,thus focusing on coordinating the message
exchange between those collaborating parties.Business
protocols defining the mutually visible message exchange
are termed abstract processes.An internal implementation
of an abstract process containing all details is called executable
business process.

英语翻译The need to compose individual Web Services into largeraggregates requires a model for the composition of WebServices,potentially from different organizations,and adescription language for the specification of compositions.Multiple propos
需要撰写个人网站服务于更大
蕴需要一个模型构成的网络
服务,可能来自不同组织、一个
描述语言描述的成分.
取得了多个建议,其中WSFL
和XLANG.IBM提出了网络服务流程
语言(WSFL)作为一个graph-oriented网络服务组成
语言.WSFL允许workflow-like规格
语言风格-语言共享许多性质
规范的语言MQSeries IBM的工作流程
系统.微软提出了XLANG作为扩展
对WSDL允许管弦乐的网络服务.
在XLANG、WSDL定义可以修改控制
流量表达式确定优先顺序、重复和
其他的操作定义在港口间的相互依赖的一个了
WSDL文件.业务流程执行语言
网络服务(简称BPEL4WS或BPEL)[17]了
提出了超越XLANG IBM和微软公司
和WSFL作为一个共同应对网络服务组成.
尽管它是贴上“工作进程”
作者,它包含一套构建丰富的语言来描述它
业务流程.
目的是为了定义BPEL业务协议
配合调用的,网络服务中
双方当事人的设置,因此注重协调信息
人们之间的合作交流聚会.业务
协议双方交换的可见信息定义
被称为文摘的过程.一个内部实施
包含所有的抽象过程的细节被称为可执行的程序
业务流程.

需要撰写个人网站服务于更大
　　蕴需要一个模型构成的网络
　　服务,可能来自不同组织、一个
　　描述语言描述的成分。
　　取得了多个建议,其中WSFL
　　和XLANG。IBM提出了网络服务流程
　　语言(WSFL)作为一个graph-oriented网络服务组成
　　语言。WSFL允许workflow-like规格
　　语言风格-语...

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需要撰写个人网站服务于更大
　　蕴需要一个模型构成的网络
　　服务,可能来自不同组织、一个
　　描述语言描述的成分。
　　取得了多个建议,其中WSFL
　　和XLANG。IBM提出了网络服务流程
　　语言(WSFL)作为一个graph-oriented网络服务组成
　　语言。WSFL允许workflow-like规格
　　语言风格-语言共享许多性质
　　与t

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