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CBID Enabling Connected Applications with Service Orientation.
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Transcript of CBID Enabling Connected Applications with Service Orientation.
CB ID
Enabling Connected Applications with Enabling Connected Applications with Service OrientationService OrientationEnabling Connected Applications with Enabling Connected Applications with Service OrientationService Orientation
AgendaAgenda
Connected ApplicationsConnected Applications
Business and IT driversBusiness and IT drivers
Service and Web Services Concepts Service and Web Services Concepts
Key elements of a Service Oriented Key elements of a Service Oriented Architecture (SOA)Architecture (SOA)
Business Service BusBusiness Service Bus
Enterprise Service BusEnterprise Service Bus
Service PipelineService Pipeline
Adoption OutlookAdoption Outlook
Connected ApplicationsConnected Applications
Utility
Grid
Intermediaries
Independent Service Providers
The Service
Economy
Partners
Customers
EmployeesPeople,
Organizations and Channels
Internal Systems
Offshore Outsourced
Packaged In-house Legacy
Devices
PC Server PDA Phone EmbeddedAuto
Service
Example – Tesco.comExample – Tesco.com
Tesco.com Systems
Deliveries
Returns
Routing
Shopping Basket
Products
Business DriversBusiness Drivers
Business Drivers
Business Process Optimization (BPO)Business Process Optimization (BPO) Business AgilityBusiness Agility
Business Initiatives
Real-time Enterprise (RTE)Real-time Enterprise (RTE) Straight Through Processing (STP)Straight Through Processing (STP)
Connected Applications
Customer, Partner and Employee EnablementCustomer, Partner and Employee Enablement
ComplianceCompliance(Sarbanes-Oxley, Basel II)(Sarbanes-Oxley, Basel II) Information Accuracy and VisibilityInformation Accuracy and Visibility
Merger & AcquisitionMerger & Acquisition
No Shortage of Integration Solutions!No Shortage of Integration Solutions!
Distributed Computing – DCOM, .NET, Distributed Computing – DCOM, .NET, CORBA, J2EECORBA, J2EE
Enterprise Application Integration – Enterprise Application Integration – Microsoft BizTalk, IBM WebSphere Microsoft BizTalk, IBM WebSphere BI, Mercator, Vitria, etcBI, Mercator, Vitria, etc
Messaging – MSMQ, IBM MQ, Tibco, Messaging – MSMQ, IBM MQ, Tibco, etcetc
Portal Servers – Microsoft Portal Servers – Microsoft Sharepoint, IBM WebSphere Portal, Sharepoint, IBM WebSphere Portal, Plumtree, etcPlumtree, etc
EDI Gateways – Sterling Commerce, EDI Gateways – Sterling Commerce, IBM WebSphere BI, GE, etcIBM WebSphere BI, GE, etc
B2B – IBM WebSphere BI, B2B – IBM WebSphere BI, SeeBeyond, iWay, etcSeeBeyond, iWay, etc
EDI/B2B
Enterprise AppIntegration (EAI)
DistributedComputing
Web Site/Portal
Messaging
That Don’t Always Work Well Together…That Don’t Always Work Well Together…
Each scenario uses different Each scenario uses different Technology, Products, Technology, Products, CommunicationsCommunications
Typically Proprietary, and often Typically Proprietary, and often platform specificplatform specific
Creates Technology dependencies Creates Technology dependencies at either endpoint of the at either endpoint of the integrationintegration
Often Channel Specific (i.e. Often Channel Specific (i.e. technology for Direct channel technology for Direct channel cannot support Partner Channelcannot support Partner Channel
Requires technical skills specific to Requires technical skills specific to each scenarioeach scenarioEDI/B2B
Enterprise AppIntegration (EAI)
DistributedComputing
Web Site/Portal
Messaging
Need Seamless End to End ConnectivityNeed Seamless End to End Connectivity
Seamless End to End Process
Customer Your Organization Supplier
B2C EAI B2B
Disjointed Processes
RTE
Agility
RTESTP BPO
Agility
Information Visibility and Accuracy
CB ID
Service and Web Service ConceptsService and Web Service ConceptsService and Web Service ConceptsService and Web Service Concepts
What is a Service?What is a Service?
What it isWhat it isA mechanism by which the A mechanism by which the consumer's need or want is consumer's need or want is satisfied according to a satisfied according to a negotiated contractnegotiated contractFocus on WHAT it does – not Focus on WHAT it does – not HOW it does itHOW it does it
What it is NOTWhat it is NOTA Software Service is not a A Software Service is not a synonym for the existing APIsynonym for the existing APIA Software Service is not A Software Service is not always a Web Servicealways a Web Service
What is desirable?What is desirable?Defined using Web Service Defined using Web Service protocols, via a set policiesprotocols, via a set policiesAbstract definition of serviceAbstract definition of service
SoftwareService
API
Executable
**
* *
BusinessService
SoftwareService
Definition
Policies
The Basic Concepts of ServiceThe Basic Concepts of Service
Service
ServiceRequestor
or Consumer
ServiceProvider
Requests
Provides
ServiceImplementation
Implements
ServiceLevel
Agreement
Quality of Service
ExampleExample
Stock Level
Retailer
Wholesaler
Requests
Provides
Response Time <0.5s
SAP
Implements
Accurate at 00.00AM
Messages, Endpoints and Messages, Endpoints and IntermediariesIntermediaries
Discovers
Publishes
ServiceDirectory or
Registry
ServiceIntermediaries
Service
ServiceConsumer
ServiceProvider
Messages
Service Endpoint
Why Services?Why Services?
Loose CouplingLoose Coupling
Requestor AgilityRequestor Agility
Service
ImplementationV1
ImplementationV2
ServiceConsumer’s Application
Service
Provider A
Implementation
Provider B
Service Endpoint
Service Endpoint
Provider EncapsulationProvider Encapsulation
Managed MigrationManaged Migration
Services Enable Agility at BoundariesServices Enable Agility at Boundaries
OrganizationC
Service
OrganizationA
Technology1
Service
Technology2
Service
ApplicationI
ApplicationII
OrganizationB
Technology Boundary
Application Boundary
Organizational Boundary
Coupling is Multi-LayeredCoupling is Multi-LayeredCharacteristic
Locked into commercial contracts
Single source provider – e.g. manufacturer of certain product
Trust - Unwilling to work with unknown partners
Semantics dependency – information model
Single source provider – e.g. bank account details
Workflow dependency – service only works in specific process
Context dependency – service only works in specific context
Technology dependency – e.g. technology must be J2EE
Application dependency – e.g. application must be SAP
Hardware dependency – e.g. Service consumer must use Nokia phone
Attribute
Business
Organization
Information
Process
Implementation
Device
Management Partners must provide closed-looped feedback
.NETLinux
J2EE Unix
OS/390
MQ
DB2
Technology LayerTechnology Layer Hardware, NetworkHardware, Network
How do you How do you connect J2EE connect J2EE to .NET?to .NET?
Layers of ArchitectureLayers of Architecture
Finance
PeopleSoft
SAP
SiebelDir
OutlookApplication LayerApplication Layer Applications, Applications,
Components, Components, SoftwareSoftware
How do you How do you connect SAP to connect SAP to Siebel?Siebel?
Business Process Business Process LayerLayer
Cross Functional Cross Functional End-to-end Sales End-to-end Sales Order ProcessOrder Process
Service LayerService Layer How do you How do you
connect sales to connect sales to customers?customers?
CustomerEmployee
SalesProduct
.NETLinux
Federation Drives Need for Web Federation Drives Need for Web ServicesServices
J2EE Unix
OS/390
MQ
DB2
Finance
PeopleSoft
SAP
SiebelDir
Outlook
Multiple Multiple ParticipantsParticipants
No common No common platform or EAIplatform or EAI
Demands Loose Demands Loose Coupling, Coupling, Message Based Message Based Approach = Web Approach = Web ServicesServices
CustomerEmployee
ProductSales
ServiceIntermediary
Service ProviderService Consumer
What are Web Services?What are Web Services?
ServiceRequest
Service
Standards-based Standards-based protocols to describeprotocols to describe
Message formatMessage format
Services and EndpointsServices and Endpoints
Addressing and Addressing and RoutingRoutingSecure, Reliable Secure, Reliable TransactionsTransactionsBusiness Process Business Process OrchestrationOrchestrationPublication and Publication and DiscoveryDiscovery
ProcurementSystem
J2EE
SalesSystem
.NET
The Web Service Protocol StackThe Web Service Protocol Stack
Messaging
Transactionsand Business
Process
Security
Management
Security WS-Security
Distributed Management WSDM, WS-Manageability
Message Packaging SOAP, MTOM
Orchestration BPEL4WS, WS-Choreography
Transaction WS-Transactions, WS-Coordination, WS-CAF
Reliable Messaging WS-ReliableMessaging, WS-Reliability
Routing/Addressing WS-Addressing
Security Policy WS-SecurityPolicy
Secure Conversation WS-SecureConversation
Trusted Message WS-Trust
Federated Identity WS-Federation
Metadata
Base Service and Message Description WSDL, WS-MetadataExchange
Policy WS-Policy, WS-PolicyAssertions
Publication and Discovery UDDI, WSIL
Portal andPresentationPortal and Presentation WSRP
Events and Notification WS-Eventing, WS-Notification
Asynchronous Services ASAP
Provisioning WS-Provisioning
Using Web Service ProtocolsUsing Web Service Protocols
Simple Transactions and Information Provision ServicesSOAP, WSDL, UDDI, WSIL, WSRP
Secure ServicesWS-Security, WS-Policy
Managed ServicesWS-Distributed Management
Complex TransactionsWS-ReliableMessaging, WS-Transactions
Orchestrated ServicesBPEL
Increasing Complexity
Federated ServicesWS-Addressing, WS-Federation, Federated Identity
Autonomic BehaviourWS-Provisioning, WS-Eventing
Likely Adoption
EDI/B2B
Web Site/Portal
Messaging
Why Web Services?Why Web Services?
Standardised approach for all Standardised approach for all scenariosscenarios
Standard protocolsStandard protocols
Universal supportUniversal supportVendorsVendors
PlatformsPlatforms
ToolsTools
Leverage Ubiquitous Internet Leverage Ubiquitous Internet technologies and XMLtechnologies and XML
Internal and External usageInternal and External usage
Supports multiple messaging Supports multiple messaging approachesapproaches
Rich, Self Describing interfacesRich, Self Describing interfaces
Loose coupled technologyLoose coupled technology
Low entry cost (essentially Low entry cost (essentially free!)free!)
WebServices
Web Services makes Service Orientation work!
EAI
DistributedComputing
CB ID
Service Orientation and SOAService Orientation and SOAService Orientation and SOAService Orientation and SOA
Service Oriented Architecture - Service Oriented Architecture - DefinitionDefinitionThe The policies, practices and frameworkspolicies, practices and frameworks
that enablethat enable application functionalityapplication functionality
to be to be providedprovided and and consumedconsumed
as as sets of servicessets of services
publishedpublished at a at a granularitygranularity relevant to the relevant to the
service consumerservice consumer,,
which are which are abstractedabstracted away from the away from the
implementation implementation
using a single, using a single, standards basedstandards based form of form of
interface. interface.
Service OrientationService Orientation
Service Oriented Analysis
Understanding and modeling the business as services
Enabling business agility
Service Oriented Provisioning
Determine which Services to use
Selecting Service Providers
Service Oriented Design
Designing precise behavior of services
Ensure scalability, reliability, SLA compliance
Enabling technical agility
Service Oriented Programming
Reducing effort to code Web Services
Service LifecycleService Lifecycle
Service Provision
Publish
Discover Consume
Version
Service Implementation
Service Consumption
ExecuteDeploy
Solution Implementation
Design
Certify
Analysis
Multi-Layered SOAMulti-Layered SOA
BusinessBusiness Products
Business Processes
Business Services
Customers
Partners
Application
Components
Applications
Software Services
Service Providers
Service Consumers
Deployment
Agents
Policies
Web Services
Endpoints
Messages
Providing Applications
Multiple Devices
Workflow
Service Architecture – The Functional Service Architecture – The Functional LayerLayer
LegacyApps
Packaged Apps
New Components
3rd PartyServices
Consuming Applications
Solution ArchitectureFrequent changeDevice diversity
Component ArchitectureLess frequent changeServer diversityInterface diversity
Service ArchitectureServices Abstracted away from ImplementationCommon to Service Provider and Service Consumer
Elements of a Service Oriented Elements of a Service Oriented ArchitectureArchitecture
Service
Requestor
Provider
Endpoint
Message
Policy
Meta
Data
Description
IntermediaryNode
Schema
Process
Orchestration
Semantics
The Business Service Bus – Functional The Business Service Bus – Functional ViewView
Domain specificDomain specificHR, Financial Services, HR, Financial Services, Logistics, Etc.,Logistics, Etc.,
Common vocabularyCommon vocabulary
Shared specification and Shared specification and modelmodel
Agreed by Service provider Agreed by Service provider and consumerand consumer
Increasingly driven by Increasingly driven by domain standardsdomain standards
HL7, ACORD, Rossettanet, HL7, ACORD, Rossettanet, UN/CEFACTUN/CEFACT
Critical Design FactorsCritical Design FactorsSchemaSchema
Loose couplingLoose coupling
Level of abstractionLevel of abstraction
GranularityGranularity
ReusabilityReusability
Human Resources Bus
Logistics Bus
Service Granularity and AbstractionService Granularity and Abstraction
Coarse Grained Business Services(Business Services Bus)
NewComponents
ExternalServices
Fine Grained Implementation
-Based Services
ExistingApplication
ServiceWrapper
Aggregation Layer
InfrastructureServices
Abstraction
Providing Applications
LegacyApps
Packaged Apps
New Components
3rd PartyServices
Enterprise Service Bus – Infrastructure Enterprise Service Bus – Infrastructure LayerLayer
Frequent changeDevice diversity
Less frequent changeServer diversityInterface diversity
Multiple Devices
Consuming Applications
Service Based Infrastructure and Middleware
Business Service Bus
Adaptors and Transformation
Technical Service Bus –.NET, J2EE, CORBA, Etc
Service Management
Process Orchestration Directory
Messaging Bus
Workflow
Service PipelineService Pipeline
Policy
Driven AuthenticationAuthorization
Service
Providing Application
LoggingMonitoring
SLA
XML FirewallTransformation
Routing
Consuming Application
AuthorizationSigning
TransformationRouting
LoggingMonitoring
SLA
Service Intermediary
Service Pipeline Implementations and Service Pipeline Implementations and InfrastructureInfrastructure
Web Service Web Service Management ToolsManagement Tools
ActionalActional
AmberpointAmberpoint
InfravioInfravio
CapeClearCapeClear
Primordial WSBANGPrimordial WSBANG
ServiceIntegrityServiceIntegrity
Westbridge XMSWestbridge XMS
West Global mScapeWest Global mScape
Hosted ServicesHosted ServicesFlamenco NetworksFlamenco Networks
GrandCentralGrandCentral
Platform infrastructurePlatform infrastructureApache AxisApache Axis
Microsoft .NET WSEMicrosoft .NET WSE
IBM WebSphere WSDKIBM WebSphere WSDK
Systems ManagementSystems ManagementHP OpenviewHP Openview
CA UnicenterCA Unicenter
IBM TivoliIBM Tivoli
Microsoft MOMMicrosoft MOM
Web Service StandardsWeb Service StandardsWS-Distributed WS-Distributed ManagementManagement
CB ID
Adoption OutlookAdoption OutlookAdoption OutlookAdoption Outlook
Impact on End-User OrganizationsImpact on End-User Organizations
Cultural challenge of Short-termism, Service Reuse, Business Service Bus Ownership
Existing applications may not be ideal for real-term behaviour, or to support long-term vision of adaptability
Business Agility requires more effort than simply adding Web Services
Customers and Partners might demand greater functionality than you can provide
Highlight weaknesses in, or unsuitability of, current interfaces
ChallengesChallenges
Competitive Advantage can be won for the business – Now!
Providing/Consuming simple Web Services will be straightforward
Simple Web Services can dramatically improve accessibility to and integration of resources
Opportunities and BenefitsOpportunities and Benefits
Impact on the ISVImpact on the ISV
Remove internal dependencies so that customers can use services at a more granular level than the whole application
Converting applications to support emerging enterprise-level Web Service standards for transactions and process orchestration
Need for applications to consume Web Services, not just provide them
Demand for more real-time behaviour in applications
Highlight weaknesses in, or unsuitability of, current interfaces
ChallengesChallenges
Change deployment options. E.g. Bring new “Hosted Service” opportunities
Introduce new opportunities for collaborative applications
Providing SOAP/WSDL interfaces may be straightforward
Will ease customer's integration requirements
Opportunities and BenefitsOpportunities and Benefits
Customer ISV (or ASP)
ISVApplication
Web Services
Customer’sApplications
Customer’sCustomers
ISVApplication
ISVApplication
ISVApplication
Customer’sApplications
Customer’sCustomers
Customer’sApplications
Customer’sCustomers
1. Traditional Deployment, plus
Web Services
2. Hosted Service Provider
3. Distributed
ISV Deployment PatternsISV Deployment Patterns
Outlook - Phases of Web Service Outlook - Phases of Web Service Adoption Adoption
1st Phase
Information Provision
Simple Transactions
Competitive Advantage
Improved Quality of Service, Security
Increasing Dynamic Behaviour
2004 2005 2006 and beyond
Early Learning
Barriers
Reliability, Security
WS Protocols
2nd Phase
“Enterprise Ready”
Improved Infrastructure
Complex Transactions
Confidence in Security
Reliability
Customer & Partner Pressure
Enterprise
3rd Phase
Adaptive Systems
Self describing
Self discovering
Barriers
Existing Systems
Business Standards
Exploitation
Current Status of Web Service ProtocolsCurrent Status of Web Service Protocols
Mainstream
SOAP
WSDL
UDDI
Specification
SOAP MTOM
WS-Addressing
WS-CAF
WS-Choreography
WSDM
WS-Eventing
WS-Federation
WSIL
WS-Provisioning
WS-ReliableMessaging
Experimentation
ASAP
BPEL
WS-Coordination
WS-Policy
Early Adoption
WS-Security
WSRP
Approved Standards Technology Preview
Paper Specifications
Immediate ProjectsImmediate Projects
Start using Web ServicesStart using Web ServicesIdentify opportunities to improve business value Identify opportunities to improve business value by exposing simple Web Servicesby exposing simple Web Services
Improve access to data for customers and partnersImprove access to data for customers and partners
Use Web Services internallyUse Web Services internallyOpen up existing systems for broader reuseOpen up existing systems for broader reuse
Take advantage of loose technical coupling to Take advantage of loose technical coupling to integration heterogeneous systemsintegration heterogeneous systems
Upgrade infrastructure to provide Enterprise Upgrade infrastructure to provide Enterprise Service BusService Bus
Start defining SOAStart defining SOAInitiate Business Service Bus projectsInitiate Business Service Bus projects
Investigate and participate in vertical industry Investigate and participate in vertical industry standardsstandards
SummarySummary
Service is the important concept, not Service is the important concept, not just Web Servicejust Web Service
SOA isn’t just the “wiring diagram” SOA isn’t just the “wiring diagram” for Web Servicesfor Web Services
Service Orientation should be Service Orientation should be adopted across the whole lifecycleadopted across the whole lifecycle
Web Services Makes SO workWeb Services Makes SO work
Strong drivers for Web Services Strong drivers for Web Services adoptionadoption