Understanding Web Services, SOA & BPEL

8/6/2019 Understanding Web Services, SOA & BPEL

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Understanding Web Services,SOA BPEL & AIA

Basheer Khan


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Agenda

Web Services

Service-Oriented Architecture (SOA)

Business Process Execution Language (BPEL)

Application Integration Architecture (AIA)

Next Steps

Q & A

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Web Services


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What Is A Web Service?

C2C Consumer to Consumer Person (consumer) to person

Email (SMTP, RFC-822)

B2C Business to Consumer

Person to Application Web (HTTP, HTML)

A2A Application to Application Application to Application

Web services (XML, SOAP, UDDI, WSDL)

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What Is A Web Service?

A Web service

Exposes and describes itself

Allows other services to locate it on the Web

Can be invoked

Must return a response

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How Does A Web Service Work?

RegisterFind

ServiceBroker

ServiceProvider

Service

ConsumerClient

ServiceContract

Service

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How Does A Web Service Work?

Courtesy: IBM

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Service-Oriented Architecture


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Understanding SOA

When we move to a new home

Phone

Gas

Service

Service

we establish and use (everyday) a Service-Oriented Architecture!

Home Sweet Home

Cable TV

Power

Water

Service

Service

Service

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Understanding SOA

Yet, why is it that most organizations today

Banks Warehouses

build their own bridges to interact between applications or with partners?

XYZ, Inc

Customers Vendors

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SOA Characteristics

Reusability leverages existing business processes across theenterprise and external trading partners

Agility provides true business agility for rapid technologydeployment

Interoperability provides framework that is platform or languageagnostic

Visibility provides insight into available services and businessprocesses

Manageability increases ability to monitor, secure, and manageservices and business processes

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SOA Benefits

Lower cost, flexible architecture

Complies with industry standards and long term future direction

Loosely coupled solution that is vendor and platform agnostic

Enables rapid business application development by reusing existingfunctionality

Enables the process-oriented or services-oriented organization that isextremely agile and adaptable to change

Leverage existing IT legacy investments with lower risk, incrementalprojects

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SOA Key Considerations

Services must be provisioned and accessed in a secure manner

Services must comply with corporate and regulatory policies

Services must be highly available and reliable

Service implementation and network topology Security and management policy

Services and policies must be discoverable via a registry to promote reuse

Services must meet SLA, performance, and scalability goals

Services must be monitored and managed to ensure quality of service

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Understanding SOA

Web Client(Self Service)

.NET Client(Support)

Portal(Self Service)

APPLICATION

Portals

J2EE Applications

Servlets

PROCESS FLOWS

BPEL

XSLT

X uerOrchestration

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Database Mainframe Packaged Apps EJBs.NET/Axis

BUSINESS SERVICES

XML, XML Schema

WSDL/WSIF

SOAP, JCA, JMS

JDBC JMS JCA RMISOAP

WSDL WSDL WSDL WSDL WSDL

Management and Security WS-Security

WS-Policy, SAML

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Why is SOA important?

Organizations have realized the immense benefit

SOA brings by enabling reuse of existingservices, introducing agility and reducing cost

There is a paradigm shift in the industry in terms

o a op on. a or so ware ven ors,including Oracle, now embed native web servicesin their applications

Applications Unlimited are now certified withFusion Middleware for SOA-enablement

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BPEL Process Manager


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What Is BPEL?

Duplicate

Number!

SalesDB start

Business Process Execution Language: Markup language for composing a set of

discrete services into an end-to-end process flow

10+ years of R&D fromMSFT and IBM

SOAP but also Java, JCA

end

Router

Billing Rich Flow Semantics Optimized Bindings

XPATH+XSLT+XQuery

WS-Security

A Process is a Service

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How Does BPEL Work?

Unlike Enterprise Application Integration (EAI) tools

that just orchestrated data, BPEL orchestrates bothdata and processes

It combines web services from different applications

to build end-to-end processes It enables standards-based communication between:

One application to another

User interfaces to back-end applications One organization to another (B2B)

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How Does BPEL Work?

PORTAL Web Service

Java Service

BPEL

The OrchestratorIU

J2EE

TOMCAT

ERP

Oracle, SAP, etc.

User Tasks

Stored Procedures

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How Does BPEL Work?

BPEL guarantees delivery correctly, once

ensuring no data loss and avoiding dataduplication (when an interface batch getsexecuted more than once)

If any application is not available, BPEL storesthe state and ensures that the data delivered orprocess is executed on the target application

once it is available again (similar to printspooling)

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Comprehensive and nativeBPEL implementation

Easy-to-use modeling tool

Scalable and reliable engine

BAM

BPEL

Console

BPEL

DesignerWorkflow Rule

Oracle BPEL Process Manager

BPEL Process ManagerHow Does BPEL Work?

Flexible binding framework

Rich management and

monitoring

Support for Oracle AS,

WebLogic and WebSphere

Get up and running in less

than 15 minutes!Application Server ( Oracle, BEA, JBoss, IBM)

Transformation Correlation

WSIF Binding Queuing

SAP EBS DB File

XSLTMapper

Adapter

Factory

ng ne

Dehydration Store

(Oracle Database)

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Oracles SOA Approach (using BPEL)

Since organizations have heterogeneous

environments, Oracle introduced adapters tojumpstart SOA enablement

Instead of develo in native core web services

for every application, you can now configureDatabase (in less than 5 mins) to make adatabase table, view or procedure to behave as a

web service!

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WSIF + JCA + XML

KEY FEATURES

BPEL AdaptersHow Does BPEL Work?

Requests and Events

Optimized Bindings

200+ Systems

Fail Over Management

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Increased Visibility

Developing interfaces (processes) using BPEL

provide greater end-to-end visibility and are veryeasy to debug/maintain.

The Desi ner uses an eas click-dra -and-dro

approach to building processes The Console displays the process exactly as it

was design (What You See Is What You Get)

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Native BPEL Support

- -

KEY FEATURES

BPEL DesignerHow Does BPEL Work?

UDDI and WSIL service browser

Visual XPATH editor

Visual Assign editor

One-click build and deploy

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Visual Monitoring

Auditing

KEY FEATURES

BPEL ConsoleHow Does BPEL Work?

BPEL Debugging

In-flight Instance Administration

Performance Tuning

Partitioning/Domains

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How Does BPEL Work?

Mapping, transformation and translation of data

elements is no longer embedded (tightly-coupled)in the source or target applications.

Transformation of data elements is abstracted to

a s an ar s- ase , mapp ng w c sdesigned using a simple, click-and-drag userinterface

Abstracting the data mapping promotes reuse as

well as saves effort during upgrades

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Drag-and-drop Interface

Built-in Librar of Functions

KEY FEATURES

BPEL TransformationsHow Does BPEL Work?

Support for Lists and Iterations

Auto-mapping

Version Resiliency

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How Does BPEL Work?

BPEL provides a very robust, scalable

architecture that provides high-availability byintroducing multiple nodes

Performance is typically not an issue when using. e processes are usua y wa ng on e

source or target applications.

BPEL has been demonstrated to process around80,000 transactions per hour using a single

server!

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Plug and Play

Cross Platform

KEY FEATURES

BPEL ArchitectureHow Does BPEL Work?

Massively Scalable

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A . Server

ER

BPEL Server

BPEL High AvailabilityHow Does BPEL Work?

Dehydration Store

(Oracle Database)

App. Server

LOAD

BALANC

BPEL Server

BPEL-OptimizedSOAP Stack

Support for large BPELProcesses (20,000+ activities)

StatelessArchitecture Clustering Fail Over

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BPEL Demo


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Application IntegrationArchitecture AIA


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BPEL and AIA

BPEL is the core product used to develop

Process Integration Packs in OraclesApplication Integration Architecture

Oracle Fusion A lications levera e BPEL for

internal workflow and AIA for integration to otherapplications

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Understanding AIA

AIA uses an intermediate Enterprise Business

Object (EBO) to map between severalapplications

The EBO contains a su erset of all ossible

attributes for a given entity so that any applicationcan map to it.

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Understanding AIA

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Integration Without AIA

Customer

- Name

- Phone

Customer

- Company Name

- Street

Application A Application B

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- A ress

- Fax

- City

- State- Zip

- Office Phone

- Office Fax

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Integration With AIA

Customer

- Name

- Phone

Customer

- Company Name

- Street

Customer

- Name

- Street

Application A Application BEBO

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- Address

- Fax

- City

- State

- Zip

- Office Phone

- Office Fax

- ty

- State- Zip

- Industry

- Phone

- Fax- Website

- etc.40


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Next Steps

Visit Oracle BPEL Home Page

http://www.oracle.com/technology/bpel

Download & tr Oracle BPEL it is FREE!

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About Innowave

Technology Consulting firm founded in 2005; HQ in Irvine, CA, USA

Provide unique, innovative solutions using Oracle Applications andTechnology

Expertise includes: Fusion Middleware, WebLogic Suite, SOA Suite,SOA Governance WSM OER BPEL OSB Business Rules BPA

BPM, BAM, OBIEE, Web Center Suite, Identity Management Implement, upgrade, and enhance Oracle E-Business Suite,

JD Edwards, PeopleSoft, and Siebel Applications

Extensive experience and expertise managing global and local

implementations across various industry verticals

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Understanding Web Services, SOA & BPEL

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