Transcript
Diwakar K VApril 13, 2023
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What is SOA?
How is SOA Testing different from traditional testing?
L&G SOA Project Architecture
Testing model in SOA Test Team
Scope of Automation & Framework followed
Scripting standards
Communication model – Offshore & Onshore
Q& A
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Why do I need to learn another Architecture ?Why do I need to learn another Architecture ?
Is there a problem or need that it addresses?Is there a problem or need that it addresses?
Is there a problem or need that it addresses?Is there a problem or need that it addresses?
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A small story about the growth of grocery shop and the problems it faced while expanding its business
• Mr. Edward owned a grocery store specialized in selling international food items
• Hired more employees
• Started IT department. Hired consultant
A small story about the growth of grocery shop and the problems it faced while expanding its business
• Mr. Edward owned a grocery store specialized in selling international food items
• Hired more employees
• Started IT department. Hired consultant
InfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeople
Traditional three-tier structure
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On his way to prosperity ,he started opening new branches at many places !!!!
He replicated the same software at all the places because the organizational structure were identical
replications of his first shop
He enjoyed more success and the software made data management and data storage very easy!!!
On his way to prosperity ,he started opening new branches at many places !!!!
He replicated the same software at all the places because the organizational structure were identical
replications of his first shop
He enjoyed more success and the software made data management and data storage very easy!!!
InfraInfra
DataData
LogicLogic
InterfaceInterface
InfraInfra
DataData
LogicLogic
InterfaceInterface
InfraInfra
DataData
LogicLogic
InterfaceInterface
EAI
ETL
EAI
ETL
PeoplePeople
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• Competition in the global market
• Cost cutting but wasn’t enough
• Buy international food processing companies
• Discussed with IT department - merging 2 companies software - 18 months to 2 year
• Competition in the global market
• Cost cutting but wasn’t enough
• Buy international food processing companies
• Discussed with IT department - merging 2 companies software - 18 months to 2 year
As boundaries within and between enterprises become increasingly permeable, there is a
greater need for information flow. This is inhibited by the 'information silos' formed
by traditional software applications. Service oriented architecture (SOA) replaces
these silos with loosely-coupled services, enabling information to flow as needed,
and delivering enterprise agility
SOA helps systems remain scalable & flexible while your business is
growing/changing
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• Enterprises are made up of a set of Business Processes
–Day to day, week to week, year to year stuff
• These business processes can be broken down into more
fundamental discrete building blocks known as Services
• Enterprises are made up of a set of Business Processes
–Day to day, week to week, year to year stuff
• These business processes can be broken down into more
fundamental discrete building blocks known as Services
Business ProcessBusiness Process
Sub ProcessSub Process
Sub ProcessSub Process
Sub ProcessSub Process
ActivityActivity
ActivityActivity
ActivityActivity Services
Service is the IT realization of some self-contained business functionality
It hides the technical implementation details
◦ Abstract black box with a formal contract of engagement
◦ Allows business people to understand it
Can be reused and assembled into Business Processes
Consumer & provider of the service are loosely coupled
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Business Process building blocks
This is what big Business wants! They want to play with their Legoand make lots and lots of money
This is what big Business wants! They want to play with their Legoand make lots and lots of money
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Claim Request
Validate Input
Create Claim Application
Verify the Credibility
Transfer Application Data
Approve Claim Reject Claim
Send response
(Reuse existing) (Reuse existing)
(Reuse existing) (Reuse existing)
(Use external)(Use external)
(Create new) (Create new)
Options
• Reuse existing
service
• Use external
service
• Create new
service
Options
• Reuse existing
service
• Use external
service
• Create new
service
Business-Driven vs Technically driven Interface
Service Reuse
Service Compositions (Composite Applications)
Loose Coupling (of Service Consumers & Providers)
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Technically driven Interface CustomerOP (action, //”create”, ”read”, ”change”, “delete” id, // customer id or null name, // new customer name or null address, // new customer address or null account) // new customer bank account or null
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Business-driven
• create Customer (name, // new customer name
• address, //customer address
• account) //customer bank account
• read Customer (id) // customer id
SOA is not about “out with the old, in with the new”
SOA is about reuse
Redundancy problem - Many similar programs
◦ Especially after acquisitions
With SOA you end with one single business service for a given function that gets
used
everywhere in your organization
Advantage - Changes only have to be made in one place
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InfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeople
InfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeopleConversation
EAI
ETL
• Conversation - Human Level
• EAI - Logic Level
• ETL - Data Level
• Conversation - Human Level
• EAI - Logic Level
• ETL - Data Level
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InfraInfraInfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeople
DataData
ServiceService
ProcessProcess
InterfaceInterface
PeoplePeople
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InfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeople
InfraInfra
DataData
ServiceService
ProcessProcess
InterfaceInterface
PeoplePeople
Service Access Mediation
Service Operations
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InfraInfra
DataData
LogicLogic
InterfaceInterface
PeoplePeople
InfraInfra
DataData
ServiceService
ProcessProcess
InterfaceInterface
PeoplePeopleWeb Browser Interface
Fat Client Interface
Cell Phone/PDA Interface
EDI Channel Interface
Web Services Interface
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X YWW W
C
Z
B
BusinessUnit I
BusinessUnit II
Corp Unit
A
• Applications A, B and C all need Customer Information
• W = Similar ‘Get Customer Information’ applications
• Applications A, B and C all need Customer Information
• W = Similar ‘Get Customer Information’ applications
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X YW
C
Z
B
BusinessUnit I
BusinessUnit II
Corp Unit
A
ServiceConsumers
ServiceProvider
Components
W = “Get Customer Information” as a shared serviceW = “Get Customer Information” as a shared service
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Reduction in the cost of maintaining application portfolio
◦ Change & test only one service
◦ Only need skills set in which the service was developed
Enables business to update its operations more quickly
◦ Only one place where code change needs to be made and so change
is implemented quickly
◦ Reduces Business risk
◦ Errors limited to new development, not in reuse of existing services
◦ So less rework & testing because of less defects
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Governance is imperative for success in SOA
Establishing & Enforcing processes & policies
◦ To ensure that existing services are reused & not duplicated
◦ Who is allowed to change a service that is reused by others
◦ Ensure that services are developed in alignment with business requirements
◦ Ensure that projects follow the established governance policies
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• SOA Testing is Testing an Architecture
• Services may/may not have a user interface
• Dynamic changes in the business requirements
• Data driven business logic within services
• External services to the organization
• Predicting the future usage of services to assist with performance, load, stress, scalability.
• SOA Testing is Testing an Architecture
• Services may/may not have a user interface
• Dynamic changes in the business requirements
• Data driven business logic within services
• External services to the organization
• Predicting the future usage of services to assist with performance, load, stress, scalability.
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• UI applications are developed using WICKET, SPRING and AJAX
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• The orchestrations are responsible for managing the overall execution of a specific business process – orchestration directs and manages the assembly of multiple component business activity services, to create a composite business process.
• Developed in WID (Web Sphere Integration Developer – IBM) and deployed on WPS (Web Sphere Process Server).
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• These services represent discrete business activities or functions that can be reused by other business units across the enterprise.
• Developed in WID (Web Sphere Integration Developer – IBM) and deployed on WPS (Web Sphere Process Server).
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• It is a layer which helps in communicating with backend systems. This layer consists of L&G Technical infrastructure like MQ, CTG (CICS Transition Gateway) ., etc
Test Stages
Functional Test• Services (SET)• User Interface (UI test)• Shake down (E2E Test, including
extranet)
Non Functional Test• Performance• Portability• Usability
OAT
UAT• User Acceptance testing
Model Office (Business Trialling)• Business processes• Customer experience
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Test Familiarization◦ Understanding the service functionality, getting familiar with the data attributes, looking the
CVT codes required for all mandatory attributes.
Test Preparation◦ Derive High level test conditions from Business functionality provided in the service contract◦ Prepare the skeleton data sheet, Browse the Mainframe database for fetching the data,
Populate the sheet with data and prepare the data ready for all the test conditions specified.
DEC◦ Submit the high level test conditions for SA review and identify the DEC
Test execution through Harness◦ Test execution is done in Test Harness, a façade interface for the business services. Expected
and actual data is compared
Defect fixing
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Test Familiarization◦ Understanding the UI functionality, getting familiar with the data attributes, looking
the CVT codes required for all mandatory attributes.
Test Preparation◦ Derive Test cases covering Mandatory validations and functionality of the UI screens
DEC◦ Submit the UI test cases as DEC
Test execution through UI Prototype◦ Test execution is done once UI prototype is ready
Defect fixing
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Input the Payload data through the test harness for the Orchestration service, and click on submit.
At the same time login to the BPC* explorer and check if a human task and a Process task has been created
The Human task should have all the Common data and the Payload data mentioned in the Task document and the Orchestration service. Check all the data is correct and make changes to the payload data if required (on BPC). Complete the task on BPC. This should be returned back to the Orchestration service, which would initiate the next task.
Open Bare Tail (Open source tool) and check the log files. This should have all the payload data, which is returned back to the Orchestration. Verify this payload data.
The Orchestration will continue to create the next task synchronously which again can be viewed on BPC.
The above process is repeated till the last task has been checked as per the Sequence in the Activity Diagram shown below.
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Flow identified and framework is used to create e2e test cases Test preparation done for the flow UI screens can only be seen
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Microsoft Excel Worksheet
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