Welcome!

Agile Computing Authors: Janakiram MSV, Liz McMillan, Elizabeth White, Sematext Blog, David H Deans

Related Topics: Containers Expo Blog, Java IoT, Microservices Expo, Open Source Cloud, @CloudExpo, SDN Journal

Containers Expo Blog: 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, Lead Technical Writer at Parasoft, authors technical articles, documentation, white papers, case studies, and other marketing communications—currently specializing in service virtualization, API testing, DevOps, and continuous testing. She has 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.

@ThingsExpo Stories
Smart Cities are here to stay, but for their promise to be delivered, the data they produce must not be put in new siloes. In his session at @ThingsExpo, Mathias Herberts, Co-founder and CTO of Cityzen Data, will deep dive into best practices that will ensure a successful smart city journey.
SYS-CON Events announced today that 910Telecom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Housed in the classic Denver Gas & Electric Building, 910 15th St., 910Telecom is a carrier-neutral telecom hotel located in the heart of Denver. Adjacent to CenturyLink, AT&T, and Denver Main, 910Telecom offers connectivity to all major carriers, Internet service providers, Internet backbones and ...
Pulzze Systems was happy to participate in such a premier event and thankful to be receiving the winning investment and global network support from G-Startup Worldwide. It is an exciting time for Pulzze to showcase the effectiveness of innovative technologies and enable them to make the world smarter and better. The reputable contest is held to identify promising startups around the globe that are assured to change the world through their innovative products and disruptive technologies. There w...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The Internet of Things (IoT) is the most profound change in personal and enterprise IT since the creation of the Worldwide Web more than 20 years ago. All major researchers estimate there will be tens of billions devices - comp...
DevOps at Cloud Expo, taking place Nov 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 19th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. 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 dev...
Data is the fuel that drives the machine learning algorithmic engines and ultimately provides the business value. In his session at Cloud Expo, Ed Featherston, a director and senior enterprise architect at Collaborative Consulting, will discuss the key considerations around quality, volume, timeliness, and pedigree that must be dealt with in order to properly fuel that engine.
19th Cloud Expo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterpri...
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
SYS-CON Events announced today Telecom Reseller has been named “Media Sponsor” of SYS-CON's 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Telecom Reseller reports on Unified Communications, UCaaS, BPaaS for enterprise and SMBs. They report extensively on both customer premises based solutions such as IP-PBX as well as cloud based and hosted platforms.
The 19th International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Microservices and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportuni...
With so much going on in this space you could be forgiven for thinking you were always working with yesterday’s technologies. So much change, so quickly. What do you do if you have to build a solution from the ground up that is expected to live in the field for at least 5-10 years? This is the challenge we faced when we looked to refresh our existing 10-year-old custom hardware stack to measure the fullness of trash cans and compactors.
The emerging Internet of Everything creates tremendous new opportunities for customer engagement and business model innovation. However, enterprises must overcome a number of critical challenges to bring these new solutions to market. In his session at @ThingsExpo, Michael Martin, CTO/CIO at nfrastructure, outlined these key challenges and recommended approaches for overcoming them to achieve speed and agility in the design, development and implementation of Internet of Everything solutions wi...
Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is expected in the amount of information being processed, managed, analyzed, and acted upon by enterprise IT. This amazing is not part of some distant future - it is happening today. One report shows a 650% increase in enterprise data by 2020. Other estimates are even higher....
Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more business becomes digital the more stakeholders are interested in this data including how it relates to business. Some of these people have never used a monitoring tool before. They have a question on their mind like “How is my application doing” but no id...
Identity is in everything and customers are looking to their providers to ensure the security of their identities, transactions and data. With the increased reliance on cloud-based services, service providers must build security and trust into their offerings, adding value to customers and improving the user experience. Making identity, security and privacy easy for customers provides a unique advantage over the competition.
I wanted to gather all of my Internet of Things (IOT) blogs into a single blog (that I could later use with my University of San Francisco (USF) Big Data “MBA” course). However as I started to pull these blogs together, I realized that my IOT discussion lacked a vision; it lacked an end point towards which an organization could drive their IOT envisioning, proof of value, app dev, data engineering and data science efforts. And I think that the IOT end point is really quite simple…
Personalization has long been the holy grail of marketing. Simply stated, communicate the most relevant offer to the right person and you will increase sales. To achieve this, you must understand the individual. Consequently, digital marketers developed many ways to gather and leverage customer information to deliver targeted experiences. In his session at @ThingsExpo, Lou Casal, Founder and Principal Consultant at Practicala, discussed how the Internet of Things (IoT) has accelerated our abil...
Is the ongoing quest for agility in the data center forcing you to evaluate how to be a part of infrastructure automation efforts? As organizations evolve toward bimodal IT operations, they are embracing new service delivery models and leveraging virtualization to increase infrastructure agility. Therefore, the network must evolve in parallel to become equally agile. Read this essential piece of Gartner research for recommendations on achieving greater agility.
SYS-CON Events announced today that Venafi, the Immune System for the Internet™ and the leading provider of Next Generation Trust Protection, will exhibit at @DevOpsSummit at 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Venafi is the Immune System for the Internet™ that protects the foundation of all cybersecurity – cryptographic keys and digital certificates – so they can’t be misused by bad guys in attacks...
For basic one-to-one voice or video calling solutions, WebRTC has proven to be a very powerful technology. Although WebRTC’s core functionality is to provide secure, real-time p2p media streaming, leveraging native platform features and server-side components brings up new communication capabilities for web and native mobile applications, allowing for advanced multi-user use cases such as video broadcasting, conferencing, and media recording.