@BigDataExpo Authors: Carmen Gonzalez, Liz McMillan, JP Morgenthal, Elizabeth White, Kevin Jackson

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

Containers Expo Blog: Article

Is Service Virtualization’s “Shift Left” a Burden to Developers?

Service Virtualization can be both a blessing and a curse for developers

Service virtualization undeniably benefits the development process, but it can be both a blessing and a curse for developers. Minimizing the burden that "shift left" can place on developers is key to achieving maximum acceleration of delivery cycles.

service virtualization shift left

Service Virtualization's Shift Left Benefits the Development Process
Service virtualization
's potential to "shift left" testing is relatively well-accepted throughout the industry. With simulated test environments eliminating constraints that commonly delay or curtail testing efforts, testing can begin earlier. And, as we all know by now, the earlier you find a defect, the faster, easier, and cheaper it is to fix. Beyond that, service virtualization allows teams to test more extensively and more frequently (e.g., for continuous regression testing).

Service virtualization's shift left certainly yields significant benefits to the development process in terms of accelerating time to market, reducing risks, and lowering the costs associated with dev/test environment management. However, its impact on the actual development team is often overlooked.

But Does Service Virtualization Burden Developers?
In many respects, service virtualization is a gift to developers. First and foremost, it means their development and testing tasks aren't stalled because they're waiting for still-evolving components to be completed and/or staged test environments to be available. It allows them to create and modify "disposable" test environments on demand...without having to rely on someone else each time they need to tweak an existing configuration or access a new one. It relieves them from the minutiae involved in developing and managing effective stubs or mocks. It also enables them to access much more sophisticated behavior than stubbing or mocking can provide.

Yet, this "shift left" is not necessarily a panacea from the developers' perspective. When you shift testing left, you also hasten the point at which QA is discovering and reporting the most defects. This means that instead of defect reports peaking during the testing phase, they peak at the development phase-which is when developers are already scrambling to implement the functionality needed to meet their development deadlines.

service virtualization shift left

Without Service Virtualization

service virtualization shift left 2

With Service Virtualization - The Shift Left

Getting barraged with defect reports during this critical phase is likely to cut into development's time and focus on creating the innovative functionality that (you're hoping) will set your organization apart from competition.

To understand what this shift left must feel like to developers, assume you're expecting houseguests to arrive on Sunday evening, giving you an entire weekend to tidy up and prepare. Now, imagine that on Thursday evening they call to say they'll be arriving Friday evening...and you have a major work deadline Friday afternoon.

So what do you do? Obviously, you don't want to throw out the baby with the bathwater here. After all, service virtualization stands to deliver remarkable benefits and provide tremendous value to your organization as a whole.

Shift Left + Compress
The good news is that service virtualization doesn't have to place extra burdens on development. The trick is to not only shift testing left, but also compress the defect curve. In other words, reduce the overall error injection rate so there are fewer defects to find and fix.

service virtualization shift left

Shift Left + Compress

As you can see, this "shift left + compress" strategy avoids taxing development at their most critical juncture. Even though the defect curve peaks earlier, developers are not burdened with an increase in reported defects during construction time because the peak is lower. Moreover, because there are fewer defects to find and fix across the SDLC, the team is able to complete the entire iteration significantly earlier.

To return to our analogy, this is akin to your houseguests arriving early...but now they're planning to stay in a hotel. Because you can focus on meeting your work deadline without worrying about cleaning, shopping, etc., the early arrival isn't nearly as stressful.

How do you reduce the overall error injection rate? Through Development Testing: synchronized application of a broad spectrum of automated defect prevention and defect detection strategies in a way that reduces development risks, time, and costs. Depending on the organization's expectations and priorities, Development Testing might include static analysis, peer code reviews, unit testing, runtime error detection, and other software verification practices.

But isn't this just placing a different burden on development? Not if it's implemented smartly and unobtrusively. In fact, Development Testing can actually improve productivity while reducing risks. But that's the topic for another blog...

Service Virtualization ROI Paper

service virtualization roi

Curious about what ROI your organization can achieve with service virtualization? Read Parasoft's new 5-page Service Virtualization ROI white paper to learn about the business drivers behind service virtualization purchase decisions, as well as the substantial opportunities for ROI in terms of OpEx reduction, CapEx reduction, risk reduction, and incremental top-line revenue.

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.

@BigDataExpo Stories
@ThingsExpo has been named the Top 5 Most Influential M2M Brand by Onalytica in the ‘Machine to Machine: Top 100 Influencers and Brands.' Onalytica analyzed the online debate on M2M by looking at over 85,000 tweets to provide the most influential individuals and brands that drive the discussion. According to Onalytica the "analysis showed a very engaged community with a lot of interactive tweets. The M2M discussion seems to be more fragmented and driven by some of the major brands present in the...
As data explodes in quantity, importance and from new sources, the need for managing and protecting data residing across physical, virtual, and cloud environments grow with it. Managing data includes protecting it, indexing and classifying it for true, long-term management, compliance and E-Discovery. Commvault can ensure this with a single pane of glass solution – whether in a private cloud, a Service Provider delivered public cloud or a hybrid cloud environment – across the heterogeneous enter...
SYS-CON Events announced today that Transparent Cloud Computing (T-Cloud) Consortium 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. The Transparent Cloud Computing Consortium (T-Cloud Consortium) will conduct research activities into changes in the computing model as a result of collaboration between "device" and "cloud" and the creation of new value and markets through organic data proces...
The Internet of Things (IoT), in all its myriad manifestations, has great potential. Much of that potential comes from the evolving data management and analytic (DMA) technologies and processes that allow us to gain insight from all of the IoT data that can be generated and gathered. This potential may never be met as those data sets are tied to specific industry verticals and single markets, with no clear way to use IoT data and sensor analytics to fulfill the hype being given the IoT today.
SYS-CON Events announced today that MathFreeOn 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. MathFreeOn is Software as a Service (SaaS) used in Engineering and Math education. Write scripts and solve math problems online. MathFreeOn provides online courses for beginners or amateurs who have difficulties in writing scripts. In accordance with various mathematical topics, there are more tha...
Governments around the world are adopting Safe Harbor privacy provisions to protect customer data from leaving sovereign territories. Increasingly, global companies are required to create new instances of their server clusters in multiple countries to keep abreast of these new Safe Harbor laws. Is it worth it? In his session at 19th Cloud Expo, Adam Rogers, Managing Director of Anexia, Inc., will discuss how to keep your data legal and still stay in business.
More and more brands have jumped on the IoT bandwagon. We have an excess of wearables – activity trackers, smartwatches, smart glasses and sneakers, and more that track seemingly endless datapoints. However, most consumers have no idea what “IoT” means. Creating more wearables that track data shouldn't be the aim of brands; delivering meaningful, tangible relevance to their users should be. We're in a period in which the IoT pendulum is still swinging. Initially, it swung toward "smart for smar...
@ThingsExpo has been named the Top 5 Most Influential Internet of Things Brand by Onalytica in the ‘The Internet of Things Landscape 2015: Top 100 Individuals and Brands.' Onalytica analyzed Twitter conversations around the #IoT debate to uncover the most influential brands and individuals driving the conversation. Onalytica captured data from 56,224 users. The PageRank based methodology they use to extract influencers on a particular topic (tweets mentioning #InternetofThings or #IoT in this ...
SYS-CON Events announced today that SoftNet Solutions 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. SoftNet Solutions specializes in Enterprise Solutions for Hadoop and Big Data. It offers customers the most open, robust, and value-conscious portfolio of solutions, services, and tools for the shortest route to success with Big Data. The unique differentiator is the ability to architect and ...
SYS-CON Events announced today that Niagara Networks 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. Niagara Networks offers the highest port-density systems, and the most complete Next-Generation Network Visibility systems including Network Packet Brokers, Bypass Switches, and Network TAPs.
SYS-CON Events announced today that Embotics, the cloud automation company, 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. Embotics is the cloud automation company for IT organizations and service providers that need to improve provisioning or enable self-service capabilities. With a relentless focus on delivering a premier user experience and unmatched customer support, Embotics is the fas...
In an era of historic innovation fueled by unprecedented access to data and technology, the low cost and risk of entering new markets has leveled the playing field for business. Today, any ambitious innovator can easily introduce a new application or product that can reinvent business models and transform the client experience. In their Day 2 Keynote at 19th Cloud Expo, Mercer Rowe, IBM Vice President of Strategic Alliances, and Raejeanne Skillern, Intel Vice President of Data Center Group and ...
SYS-CON Events announced today that Cemware 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. Use MATLAB functions by just visiting website mathfreeon.com. MATLAB compatible, freely usable, online platform services. As of October 2016, 80,000 users from 180 countries are enjoying our platform service.
Virgil consists of an open-source encryption library, which implements Cryptographic Message Syntax (CMS) and Elliptic Curve Integrated Encryption Scheme (ECIES) (including RSA schema), a Key Management API, and a cloud-based Key Management Service (Virgil Keys). The Virgil Keys Service consists of a public key service and a private key escrow service. 

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.
In past @ThingsExpo presentations, Joseph di Paolantonio has explored how various Internet of Things (IoT) and data management and analytics (DMA) solution spaces will come together as sensor analytics ecosystems. This year, in his session at @ThingsExpo, Joseph di Paolantonio from DataArchon, will be adding the numerous Transportation areas, from autonomous vehicles to “Uber for containers.” While IoT data in any one area of Transportation will have a huge impact in that area, combining sensor...
DevOps is speeding towards the IT world like a freight train and the hype around it is deafening. There is no reason to be afraid of this change as it is the natural reaction to the agile movement that revolutionized development just a few years ago. By definition, DevOps is the natural alignment of IT performance to business profitability. The relevance of this has yet to be quantified but it has been suggested that the route to the CEO’s chair will come from the IT leaders that successfully ma...
SYS-CON Events announced today that Pulzze Systems 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. Pulzze Systems, Inc. provides infrastructure products for the Internet of Things to enable any connected device and system to carry out matched operations without programming. For more information, visit http://www.pulzzesystems.com.
In the next forty months – just over three years – businesses will undergo extraordinary changes. The exponential growth of digitization and machine learning will see a step function change in how businesses create value, satisfy customers, and outperform their competition. In the next forty months companies will take the actions that will see them get to the next level of the game called Capitalism. Or they won’t – game over. The winners of today and tomorrow think differently, follow different...
One of biggest questions about Big Data is “How do we harness all that information for business use quickly and effectively?” Geographic Information Systems (GIS) or spatial technology is about more than making maps, but adding critical context and meaning to data of all types, coming from all different channels – even sensors. In his session at @ThingsExpo, William (Bill) Meehan, director of utility solutions for Esri, will take a closer look at the current state of spatial technology and ar...