Welcome!

FinTech Journal Authors: Yeshim Deniz, William Schmarzo, Elizabeth White, Liz McMillan, Pat Romanski

Related Topics: FinTech Journal, Containers Expo Blog, @CloudExpo, SDN Journal

FinTech Journal: Article

ABCs of Service #Virtualization | @CloudExpo @Parasoft #SDS #DataCenter

What is Service Virtualization? How does it impact software testing Access, Behavior, Cost, and Speed?

What is Service Virtualization?
To achieve "quality @ speed", it's essential to have unrestrained access to a trustworthy and realistic test environment. It is important to recognize that a complete test environment includes the application under test (AUT) and all of its dependent components (e.g., APIs, 3rd-party services, databases, applications, and other endpoints).

Service virtualization is an emerging technology that provides DevTest teams access to a complete test environment by simulating the dependent components that are beyond your control, still evolving, or too complex to configure in a test lab. Service virtualization is commonly used when dependent components connected to the AUT are:

  • Not yet completed or still evolving
  • Controlled by a 3rd party or partner
  • Available for testing only in limited capacity or at inconvenient times
  • Difficult to provision or configure in a test environment
  • Needed for simultaneous access by different teams with varied test data setup and other requirements
  • Restricted or costly to use for performance testing and/or Continuous Testing

Service virtualization enables DevTest teams to:

  • Provide access to a complete test environment including all critical dependent system components
  • Alter the behavior of those dependent components in ways that would be impossible with a staged test environment-enabling you to test earlier, faster, and more completely
  • Isolate different layers of the application for debugging and performance testing

The ABCs of Service Virtualization are Access, Behavior, Cost, and Speed...

ScreenShot1465.png

With today's fast-paced iterative development cycles, DevTest teams need early access to a complete test environment in order to:

  • Validate each user story's functionality as soon as it is completed
  • Validate each user story's impact as soon as it is completed
  • Perform more comprehensive testing earlier in the process
  • Complete their own DevTest tasks even if another team is implementing or evolving a dependent component in parallel with the current iteration

Service virtualization can provide access to any dependent component that is missing or constrained in your test environment: 3rd-party services, APIs, databases, mainframes, ESBs, and other components that communicate using common messaging protocols. Prime candidates for service virtualization include dependent components that are both:service-virtualization-definition

  • Moderately (or more) difficult to access for testing-for example, due to scheduling conflicts, access fees, geo-political boundaries, etc.
  • Moderately (or more) complex to configure for testing

For example, an internal service might be readily accessible from a staged test environment and simple to configure. On the other hand, a complex message queue is probably more difficult to stand-up in a staged test environment and considerably more challenging to configure for test. At the extreme end of the spectrum, a mainframe or ERP system will have multiple constraints associated with DevTest access as well as distinct limitations on your ability to configure it for test. Leveraging service virtualization ensures that a test environment is accessible on demand. It eliminates the access constraints and reduces the overhead associated with repeated configuration.

ScreenShot1466.png

Service virtualization also gives you control over the behavior of the dependent components. It is very difficult to alter the configuration of the network or hardware associated with each dependent component of the AUT. It's also quite common to face staged test environments that exhibit slower performance than you'd encounter in production. Using service virtualization, you can have greater control over how dependencies respond. This gives you on-demand access to a much broader range of dependency behaviors-just like a flight simulator. As a result, you can assess the risk of a release candidate faster and more accurately.

For example, you can simulate different dependency behavior to:

  • Check how your AUT responds to performance variations in dependencies. Can users complete core transactions even when one dependency experiences high latency? Do low-latency scenarios expose concurrency issues?
  • Isolate the component under test to understand if unexpected behavior stems from problems with dependencies or from your AUT
  • Set the complete test environment into different states and validate your AUT's security and resiliency in those contexts

ScreenShot1467.png

...

Service Virtualization ABCs

Get the complete ABCs of Service Virtualization infographic to learn:

  • How service virtualization reduces DevTest costs and accelerates velocity
  • 6 signs your team could benefir from service virtualization
  • 17 things you can simulate with service virtualization

Also, if you're just starting to explore service virtualization, we invite you to join us for the Service Virtualization ABCs  webinar this Thursday (September 15). You'll learn the basics of Service Virtualization, including how it can help your organization:

  • Provide access to a complete test environment including all critical dependent system components
  • Alter the behavior of those dependent components in ways that would be impossible with a staged test environment-enabling you to test earlier, faster, and more completely
  • Isolate different layers of the application for debugging and performance testing

More Stories By Cynthia Dunlop

Cynthia Dunlop, Lead Content Strategist/Writer at Tricentis, writes about software testing and the SDLC—specializing in continuous testing, functional/API testing, DevOps, Agile, and service virtualization. She has written articles for publications including SD Times, Stickyminds, InfoQ, ComputerWorld, IEEE Computer, and Dr. Dobb's Journal. She also co-authored and ghostwritten several books on software development and testing for Wiley and Wiley-IEEE Press. Dunlop holds a BA from UCLA and an MA from Washington State University.

IoT & Smart Cities Stories
The Master of Science in Artificial Intelligence (MSAI) provides a comprehensive framework of theory and practice in the emerging field of AI. The program delivers the foundational knowledge needed to explore both key contextual areas and complex technical applications of AI systems. Curriculum incorporates elements of data science, robotics, and machine learning-enabling you to pursue a holistic and interdisciplinary course of study while preparing for a position in AI research, operations, ...
After years of investments and acquisitions, CloudBlue was created with the goal of building the world's only hyperscale digital platform with an increasingly infinite ecosystem and proven go-to-market services. The result? An unmatched platform that helps customers streamline cloud operations, save time and money, and revolutionize their businesses overnight. Today, the platform operates in more than 45 countries and powers more than 200 of the world's largest cloud marketplaces, managing mo...
I spend a lot of time helping organizations to “think like a data scientist.” My book “Big Data MBA: Driving Business Strategies with Data Science” has several chapters devoted to helping business leaders to embrace the power of data scientist thinking. My Big Data MBA class at the University of San Francisco School of Management focuses on teaching tomorrow’s business executives the power of analytics and data science to optimize key business processes, uncover new monetization opportunities an...
Trend Micro Incorporated, a global leader in cybersecurity solutions, helps to make the world safe for exchanging digital information. Our innovative solutions for consumers, businesses, and governments provide layered security for data centers, cloud workloads, networks, and endpoints. All our products work together to seamlessly share threat intelligence and provide a connected threat defense with centralized visibility and investigation, enabling better, faster protection. With more than 6,00...
Tapping into blockchain revolution early enough translates into a substantial business competitiveness advantage. Codete comprehensively develops custom, blockchain-based business solutions, founded on the most advanced cryptographic innovations, and striking a balance point between complexity of the technologies used in quickly-changing stack building, business impact, and cost-effectiveness. Codete researches and provides business consultancy in the field of single most thrilling innovative te...
Codete accelerates their clients growth through technological expertise and experience. Codite team works with organizations to meet the challenges that digitalization presents. Their clients include digital start-ups as well as established enterprises in the IT industry. To stay competitive in a highly innovative IT industry, strong R&D departments and bold spin-off initiatives is a must. Codete Data Science and Software Architects teams help corporate clients to stay up to date with the mod...
The Japan External Trade Organization (JETRO) is a non-profit organization that provides business support services to companies expanding to Japan. With the support of JETRO's dedicated staff, clients can incorporate their business; receive visa, immigration, and HR support; find dedicated office space; identify local government subsidies; get tailored market studies; and more.
In his session at 21st Cloud Expo, Raju Shreewastava, founder of Big Data Trunk, provided a fun and simple way to introduce Machine Leaning to anyone and everyone. He solved a machine learning problem and demonstrated an easy way to be able to do machine learning without even coding. Raju Shreewastava is the founder of Big Data Trunk (www.BigDataTrunk.com), a Big Data Training and consulting firm with offices in the United States. He previously led the data warehouse/business intelligence and Bi...
CloudEXPO has been the M&A capital for Cloud companies for more than a decade with memorable acquisition news stories which came out of CloudEXPO expo floor. DevOpsSUMMIT New York faculty member Greg Bledsoe shared his views on IBM's Red Hat acquisition live from NASDAQ floor. Acquisition news was announced during CloudEXPO New York which took place November 12-13, 2019 in New York City.
SUSE is a German-based, multinational, open-source software company that develops and sells Linux products to business customers. Founded in 1992, it was the first company to market Linux for the enterprise. Founded in 1992, SUSE is the world's first provider of an Enterprise Linux distribution.