Ibm Soa编程模型

© IBM Copyright 10/01/07 © 2007 IBM Corporation

SOA 编程模型 : SCA/SDO

黄若波 ([email protected])SOA 设计中心 , IBM 中国软件开发中心

mailto:[email protected]

© 2007 IBM Corporation2 © IBM Copyright 10/01/07

提纲

为什么要 SOA

SOA 的编程模型

SCA/SDO 介绍

为什么使用 SCA/SDO


商务模型的灵活性需要 IT 体系架构的支持和协作


面向服务的建模与分析


SOA 项目中的角色

Rational RequisiteProRational RequisitePro

Create, Simulate & Analyze As-Is

Business Model

WebSphere Business Modeler

Create FinancialReports & ROI

Estimates

Create Observation Model with KPIs & export to Monitor

Create, Simulate, Analyze and Optimize To-Be Business Model

BusinessAnalyst

Create, Simulate & Analyze As-Is

Business Model

WebSphere Business Modeler

Create FinancialReports & ROI

Estimates

Create Observation Model with KPIs & export to Monitor

Create, Simulate, Analyze and Optimize To-Be Business Model

BusinessAnalyst

Integration Developer

WebSphere Integration Developer Choreograph

services using BPEL, WSDL,

etc.

Configure Human Task Manager

(including Ad-Hoc) & Client

Assemble Solution(BPEL, Human Task Manager, Business

Rules, etc)

Integration Developer



etc.




Rules, etc)



etc.




Rules, etc)

Understand Risk, Project Costs,

and ROI

Identify and Manage

Projects and Resources

CIO

ProjectManager

Rational PortfolioManager

Understand Risk, Project Costs,

and ROI

Identify and Manage

Projects and Resources

CIO

ProjectManager

Rational PortfolioManager

DataArchitect

ModelRelationalDatabaseSchemas

Rational DataArchitect

RDB Mapping

Trace Requirements & Create System

Use Case Realizations

Model & Implement Services, & expose as

Web Services

Test Create & Manage

SystemRequirements

Architect

RationalSoftwareArchitect Java

Developer

Develop Portlets(App UI

and Monitor)

PortalDeveloper

Tester

Rational Functional & Performance Tester

DataArchitect



RDB Mapping

DataArchitect



RDB Mapping




Web Services


SystemRequirements

Architect


Developer


and Monitor)

PortalDeveloper

Tester





Web Services


SystemRequirements

Architect


Developer


and Monitor)

PortalDeveloper

Tester


IBM Rational Team Unifying PlatformIBM Rational Team Unifying Platform

BPELWSDLBPELWSDL

UMLUML

DBA

Deploy/Run

MonitorBusiness

OperationsAnalyst

RuntimeWebSphere Process ServerWebSphere Portal WebSphere Business Monitor

DBA

Deploy/Run

MonitorBusiness

OperationsAnalyst


Deploy/Run

MonitorBusiness

OperationsAnalyst


WSDLEAR

WSDLEAR

WSDLEAR

WSDLEAR

Observation ModelObservation Model

Run-time StatisticsRun-time Statistics


SOA 编程模型


SDO:

disconnected data architect

目的 : 简化对于数据的编程 ,使得程序员可以关注于业务逻辑而不是后台实现技术 :

统一访问不同数据源的数据编程模型

对于常用的应用程序设计模式进行支持

使得应用程序 , 工具以及框架结构可以更加容易地查询 , 浏览 , 绑定 ,更新 , 检查数据 .


SCA: 模块 , 组件 , 接口 , 引用 , 连线


为什么使用 SCA/SDO:

统一的接口来访问数据和服务 :

SDO 提供强类型方法来访问数据

SDO 提供使用 Type/Property 来访问数据

SCA 提供不同的实现的选择

SCA 提供统一的服务调用接口

// Get the list of departments

List departments = company.getList("departments");

// Get the department at index 0 on the list

DataObject department = (DataObject) departments.get(0);

List properties = dataObject.getInstanceProperties();

for (int p=0, size=properties.size(); p < size; p++){….

String propertyName = property.getName();

Type type = property.getType();

String typeName = type.getName();}

ServiceImpl service = (ServiceImpl)serviceManager.locateService(“myService”);

Service.method(“input”); // 或者

Service.invoke(“op”,”input”);



更高的灵活性

– 不改变应用程序情况下 , 使用不同的技术来作为组件的实现 , 或者改变通信协议等等 .

– 模块可以容易地被重用

– 可以很容易地组装应用程序

– 易于修改和变动



提高生产率

– 不同角色的人有不同的关注点

– 减低项目开发的技术要求

– 降低整个项目开发的集成风险

– 提供一种敏捷开发的方法

流程集成集成开发人员

J2EE,.Net… 的服务实现服务开发人员

系统架构分析 , 设计软件架构师

业务逻辑 , 业务流程 , 业务分析 , 业务模拟业务分析人员

BPEL, 业务流程 , 组装集成开发人员

Java, .Net….服务开发人员

UML, BPEL,SOA,软件架构师

业务领域语言 ,业务分析人员


Thank You

MerciGrazie

Gracias

ObrigadoDanke

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