Welcome!

Web 2.0 Authors: Saar Bitner, Jnan Dash, Avi Rosenthal, Pat Romanski, Elizabeth White

Related Topics: Virtualization, Java, SOA & WOA, Open Source, Cloud Expo, SDN Journal

Virtualization: Article

Top 10 Service Virtualization Questions from Gartner AADI

Service Virtualization FAQs

Parasoft has been showcasing our Service Virtualization solution at Gartner AADI this week. Since there's been so much interest in service virtualization, we thought we would take this opportunity to share the most frequently asked questions.

1. What is service virtualization?

According to Wikipedia, service virtualization is "a method to emulate the behavior of specific components in heterogeneous component-based applications such as API-driven applications, cloud-based applications, and service-oriented architectures. It is used to provide software development and QA/testing teams access to dependent system components that are needed to exercise an application under test (AUT), but are unavailable or difficult-to-access for development and testing purposes. With the behavior of the dependent components 'virtualized,' testing and development can proceed without accessing the actual live components."

2. How is service virtualization different than server virtualization?

Service virtualization provides a simulated response from message traffic, "virtualizing" only a fraction of the overall system behavior. Server virtualization is much more extensive. As a result, it requires you to have access to the entire system-and also to know how to configure and maintain the virtualized system components. Moreover, it's not feasible to leverage server virtualization for every dependent application (e.g., mainframes, third-party systems, ERPs). Service virtualization fills the gap by providing access to the specific behavior that's needed to complete development and testing tasks.

3. Can I trust a simulated test environment?

Absolutely...but you want to ensure that your service virtualization solution builds trust by analyzing and assessing the health of the simulated test environment vs. the production system.

4. Why can't I just do this myself? Why do I need a commercial service virtualization product?

Some organizations have been very successful in building their own solution to eliminate constraints associated with simple systems and "quick and dirty" test scenarios. However, if you're looking to accelerate the SDLC by "shifting left" the execution of complex deterministic test suites, that's when you want to consider commercial service virtualization products. Parasoft delivers a platform that allows convenient role- and team-based access to trusted test artifacts. We focus on providing the most flexible simulated responses in a shared environment. The platform ensures that your test environment is accessible, dependable, and meets the organization's performance demands.

5. Why do I need this? We've been doing ok without it.

Organizations that aren't under pressure to release innovative software under tight deadlines might have the luxury of not needing service virtualization. Also, organizations that already have ubiquitous access to complete test environments might not need service virtualization. However, we have found that large organizations with complex interdependent systems can achieve significant benefits with service virtualization's simulated test environments. For example:

  • OpEx reduction by cutting wait time, configuration time, and access fees
  • CapEx reduction by reducing the need for hardware, licenses & lab infrastructure
  • Risk reduction by enabling teams to test earlier, faster & more completely
  • Incremental top-line revenue by accelerating innovation and time to market

6. Is service virtualization really useful for QA?

Yes, service virtualization is incredibly valuable for QA. QA has traditionally had to wait for a complete application before they could begin functional testing. With service virtualization, QA can start testing much earlier. They can test features as they're completed, which is very well-suited for agile processes.

7. How difficult is it to maintain service virtualization assets?

Different vendors have developed different models for service virtualization maintenance and evolution. Some vendors, such as Parasoft, offer both passive and active methods for service virtualization environment maintenance and evolution. Others approach service virtualization as a single component (or end-point), which makes it difficult to maintain.

8. What's the difference between service virtualization and stubs and mocks?

Stubs disconnect a test suite from an environment. They provide replacement implementations for objects, methods, or functions in order to remove external dependencies. If you're trying to write a unit test and need to replace a simple call to a database, external libraries (e.g., file I/O) or other system API, stubbing might be perfectly suited for your needs.

Service virtualization emulates an environment to allow you to execute a broad array of end-to-end tests. Service virtualization can represent much more realistic behavior than simple stubs and mocks. While stubs are created from the perspective of the test suite in order to "skip" unavailable system components, virtual assets are constructed to make the behavior of constrained components available to the entire team. With the virtual asset centrally provisioned, all team members access the same asset, which is expressing the expected behavior. This allows absolute consistency and reduced risk of defects slipping into the final product.

9. Does service virtualization require a highly-technical person?

The answer here is really vendor-dependent. Parasoft provides a user-friendly interface that enables even non-technical users to provision complex test environments with the click of a button or via an automated test management system. Others service virtualization vendors require dedicated technical resources to programmatically construct and provision environments.

10. What kind of dependencies can I replace with service virtualization?

You can use service virtualization to provide simulated responses for any system that has a standard or custom protocol for communication and a message payload. This includes, but is not limited to, large ERPs (e.g. SAP), databases, mainframes, mobile UIs, mobile networks, third-party applications, and much more.

New Research Package from Gartner and Parasoft: Accelerating the SDLC with Service Virtualization

gartner service virtualizationThe new Service Virtualization research package from Gartner and Parasoft provides more details about how service virtualization helps organizations accelerate the SDLC. Download it to learn:

  • Why service virtualization is a "must-have" for accelerating the SDLC.

  • How service virtualization helped Comcast release thoroughly-tested software faster-and at a lower total overall cost.

  • Recommendations for organizations getting started with service virtualization.

  • Strategies for streamlining the release management process beyond service virtualization.

More Stories By Cynthia Dunlop

Cynthia Dunlop is the lead technical writer for Parasoft.

@ThingsExpo Stories
DevOps Summit 2015 New York, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that it is now accepting Keynote Proposals. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long development cycles that produce software that is obsolete at launch. DevOps may be disruptive, but it is essential.
“In the past year we've seen a lot of stabilization of WebRTC. You can now use it in production with a far greater degree of certainty. A lot of the real developments in the past year have been in things like the data channel, which will enable a whole new type of application," explained Peter Dunkley, Technical Director at Acision, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, phone and digital TV services to consumers primarily in rural areas.
The major cloud platforms defy a simple, side-by-side analysis. Each of the major IaaS public-cloud platforms offers their own unique strengths and functionality. Options for on-site private cloud are diverse as well, and must be designed and deployed while taking existing legacy architecture and infrastructure into account. Then the reality is that most enterprises are embarking on a hybrid cloud strategy and programs. In this Power Panel at 15th Cloud Expo (http://www.CloudComputingExpo.com), moderated by Ashar Baig, Research Director, Cloud, at Gigaom Research, Nate Gordon, Director of T...
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover how hardware commoditization, the ubiquitous nature of connectivity, and the emergence of Big Data a...

ARMONK, N.Y., Nov. 20, 2014 /PRNewswire/ --  IBM (NYSE: IBM) today announced that it is bringing a greater level of control, security and flexibility to cloud-based application development and delivery with a single-tenant version of Bluemix, IBM's platform-as-a-service. The new platform enables developers to build ap...

"BSQUARE is in the business of selling software solutions for smart connected devices. It's obvious that IoT has moved from being a technology to being a fundamental part of business, and in the last 18 months people have said let's figure out how to do it and let's put some focus on it, " explained Dave Wagstaff, VP & Chief Architect, at BSQUARE Corporation, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4-6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that IDenticard will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. IDenticard™ is the security division of Brady Corp (NYSE: BRC), a $1.5 billion manufacturer of identification products. We have small-company values with the strength and stability of a major corporation. IDenticard offers local sales, support and service to our customers across the United States and Canada. Our partner network encompasses some 300 of the world's leading systems integrators and security s...
"People are a lot more knowledgeable about APIs now. There are two types of people who work with APIs - IT people who want to use APIs for something internal and the product managers who want to do something outside APIs for people to connect to them," explained Roberto Medrano, Executive Vice President at SOA Software, in this SYS-CON.tv interview at Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
Nigeria has the largest economy in Africa, at more than US$500 billion, and ranks 23rd in the world. A recent re-evaluation of Nigeria's true economic size doubled the previous estimate, and brought it well ahead of South Africa, which is a member (unlike Nigeria) of the G20 club for political as well as economic reasons. Nigeria's economy can be said to be quite diverse from one point of view, but heavily dependent on oil and gas at the same time. Oil and natural gas account for about 15% of Nigera's overall economy, but traditionally represent more than 90% of the country's exports and as...
The Internet of Things is a misnomer. That implies that everything is on the Internet, and that simply should not be - especially for things that are blurring the line between medical devices that stimulate like a pacemaker and quantified self-sensors like a pedometer or pulse tracker. The mesh of things that we manage must be segmented into zones of trust for sensing data, transmitting data, receiving command and control administrative changes, and peer-to-peer mesh messaging. In his session at @ThingsExpo, Ryan Bagnulo, Solution Architect / Software Engineer at SOA Software, focused on desi...
"At our booth we are showing how to provide trust in the Internet of Things. Trust is where everything starts to become secure and trustworthy. Now with the scaling of the Internet of Things it becomes an interesting question – I've heard numbers from 200 billion devices next year up to a trillion in the next 10 to 15 years," explained Johannes Lintzen, Vice President of Sales at Utimaco, in this SYS-CON.tv interview at @ThingsExpo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
"For over 25 years we have been working with a lot of enterprise customers and we have seen how companies create applications. And now that we have moved to cloud computing, mobile, social and the Internet of Things, we see that the market needs a new way of creating applications," stated Jesse Shiah, CEO, President and Co-Founder of AgilePoint Inc., in this SYS-CON.tv interview at 15th Cloud Expo, held Nov 4–6, 2014, at the Santa Clara Convention Center in Santa Clara, CA.
SYS-CON Events announced today that Gridstore™, the leader in hyper-converged infrastructure purpose-built to optimize Microsoft workloads, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Gridstore™ is the leader in hyper-converged infrastructure purpose-built for Microsoft workloads and designed to accelerate applications in virtualized environments. Gridstore’s hyper-converged infrastructure is the industry’s first all flash version of HyperConverged Appliances that include both compute and storag...
Today’s enterprise is being driven by disruptive competitive and human capital requirements to provide enterprise application access through not only desktops, but also mobile devices. To retrofit existing programs across all these devices using traditional programming methods is very costly and time consuming – often prohibitively so. In his session at @ThingsExpo, Jesse Shiah, CEO, President, and Co-Founder of AgilePoint Inc., discussed how you can create applications that run on all mobile devices as well as laptops and desktops using a visual drag-and-drop application – and eForms-buildi...
We certainly live in interesting technological times. And no more interesting than the current competing IoT standards for connectivity. Various standards bodies, approaches, and ecosystems are vying for mindshare and positioning for a competitive edge. It is clear that when the dust settles, we will have new protocols, evolved protocols, that will change the way we interact with devices and infrastructure. We will also have evolved web protocols, like HTTP/2, that will be changing the very core of our infrastructures. At the same time, we have old approaches made new again like micro-services...
Code Halos - aka "digital fingerprints" - are the key organizing principle to understand a) how dumb things become smart and b) how to monetize this dynamic. In his session at @ThingsExpo, Robert Brown, AVP, Center for the Future of Work at Cognizant Technology Solutions, outlined research, analysis and recommendations from his recently published book on this phenomena on the way leading edge organizations like GE and Disney are unlocking the Internet of Things opportunity and what steps your organization should be taking to position itself for the next platform of digital competition.
The 3rd International Internet of @ThingsExpo, co-located with the 16th International Cloud Expo - to be held June 9-11, 2015, at the Javits Center in New York City, NY - announces that its Call for Papers is now open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
As the Internet of Things unfolds, mobile and wearable devices are blurring the line between physical and digital, integrating ever more closely with our interests, our routines, our daily lives. Contextual computing and smart, sensor-equipped spaces bring the potential to walk through a world that recognizes us and responds accordingly. We become continuous transmitters and receivers of data. In his session at @ThingsExpo, Andrew Bolwell, Director of Innovation for HP's Printing and Personal Systems Group, discussed how key attributes of mobile technology – touch input, sensors, social, and ...
In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect at GE, and Ibrahim Gokcen, who leads GE's advanced IoT analytics, focused on the Internet of Things / Industrial Internet and how to make it operational for business end-users. Learn about the challenges posed by machine and sensor data and how to marry it with enterprise data. They also discussed the tips and tricks to provide the Industrial Internet as an end-user consumable service using Big Data Analytics and Industrial Cloud.