The Business Case for Visual Studio Quality Assurance and Testing Tools

Transcription

1 The Business Case for Visual Studio Quality Assurance and Testing Tools May 2011 This document is property of Pique Solutions. Reproduction is forbidden unless authorized. Visit to learn more about our consulting and market research services. 795 Folsom Street, 1 st Floor San Francisco, CA Tel.: Fax:

2 Contents Executive Summary... 1 A Comprehensive, Unified Solution for Agile Development... 2 The Business Case for Visual Studio Quality Assurance and Testing Tools. 3 The Economic and Business Benefits... 4 Activity-Based Process Improvements: Productivity and Efficiency... 5 Summary of Strategic Benefits... 8 Conclusions and Key Takeaways... 9 Call to Action... 9 Appendix: Business Case Framework Approach Strategic Benefits Research Methodology Microsoft and Visual Studio are trademarks of the Microsoft group of companies. All other trademarks are property of their respective owners Pique Solutions. All rights reserved.

3 Executive Summary This white paper provides a business case for the adoption of Microsoft Visual Studio quality assurance and testing tools based on in-depth research and analysis of the business and the technical benefits achieved by companies using Visual Studio for quality management and testing as part of their software development projects. While most development tools and platforms today don t support the flow of value across the lifecycle and don t adequately address waste in the process, Microsoft s Application Lifecycle Management (ALM) foundation provides increased visibility into the lifecycle, a common process, rich interactions, and support for upstream and downstream processes. The Visual Studio focus on flow of value and increased transparency make it a powerful tool that enables Agile development processes and increases productivity and predictability of software construction while significantly reducing costs. Some of the key findings of the study include: In terms of baseline economic benefits, companies achieve a 154%, three-year return on investment (ROI) based on the tangible cost savings associated with the acquisition of the Visual Studio Ultimate and Test Professional products. As a complement to the baseline economic benefits, companies on average nearly doubled (91% increase) the amount of defects found and fixed per development cycle and reduced the development-to-test cycle time for preproduction releases by 26%. From a strategic benefit standpoint, the top benefits cited by the interviewees include better collaboration among developers and testers, enablement of Agile development processes, predictability of software quality, and better visibility into the development and test processes. 91% increase in defects found/fixed 26% reduction in cycle time Key Study Takeaways The Visual Studio quality and testing solution provides the benefit of a single platform and tool set for development and testing activities, which improves productivity and efficiency and enables better collaboration among developers and testers. There are substantive economic and business benefits both for companies migrating from other vendors quality and testing tools and for companies migrating from manual processes. While the economic value (ROI) is substantial and easily justifies the investment, much larger indirect benefits also can be gained, such as customer satisfaction or even company bottomline benefits. The enablement and scaling of Agile development practices is a key driver for the adoption of Visual Studio and facilitates companies realizing the benefits of Agile development, including increasing the flow of value, reducing waste, and providing transparency into the development process Pique Solutions. All rights reserved. 1

4 A Comprehensive, Unified Solution for Agile Development Support for a migration to, or further adoption of, Agile development processes was identified as a top strategic driver for the adoption of Visual Studio quality assurance and testing tools. Nearly 80% of companies in the research viewed the adoption of Visual Studio including the use of Microsoft Agile process templates as critical to a move to Agile and, as a result, did not need an explicit cost savings or value justification for the investment. That said, it is still relevant and important to quantify the benefits of quality assurance and testing tools in the context of Agile, particularly around metrics for quality and cycle-time improvements. These metrics cannot always be tied back to hard cost savings or economic business value, but in terms of Agile they are often more important and relevant measures of success. At the end of the day, Agile development is about: A much closer collaboration among business analysts, developers, testers, and IT management; Earlier involvement of testing in the development process, including both engaging testers earlier and enabling developers to more easily do testing activities themselves; Increasing the flow of value by improving the productivity and efficiency of the development and testing teams, thus enabling more output to be delivered in often shorter cycle times; Reducing the waste in the development cycle through compressed development and test cycles, and the dramatic reduction in no repro defects; In terms of our Agile adoption, testing was the piece we were missing with our former solution. Visual Studio 2010 and Team Foundation Server provide us a superior platform and tool set for the integration of development and test activities. Application Manager, New Zealand Insurance Conglomerate More transparency and, in turn, manageability and predictability for software development costs and quality. As will be demonstrated in the business case validated with data from 20 in-depth interviews and detailed data-collection points the quality assurance and testing capabilities offered by Visual Studio 2010 provide results that satisfy the goals of economic justification, Agile development metrics, and overall strategic IT and business alignment. In fact, the benefits achieved by the companies studied that have adopted Agile along with Visual Studio 2010 were greater than those of their counterparts that are using non-agile development practices. The quality assurance and testing capabilities in the comprehensive and integrated Visual Studio offerings were cited by all study participants as a key driver for the business case, including both companies that migrated from other high-quality tools like HP Quality Center and those that transitioned from purely manual processes for testing and quality assurance Pique Solutions. All rights reserved. 2

5 The Business Case for Visual Studio Quality Assurance and Testing Tools The business case for Visual Studio 2010 quality assurance and testing tools demonstrates the compelling value along three key dimensions economic benefits, business benefits, and strategic benefits. In terms of the business case, these are defined as follows: Economic: Demonstrates the judicious use of scarce financial resources relative to other potential investments. Shows a compelling ROI for investment in Visual Studio 2010 Ultimate and Visual Studio 2010 Test Professional based on the tangible cost savings associated with the acquisition and usage of the quality assurance and testing capabilities over a three-year period. Business (Output and Quality): Measures important, tangible metrics for improvements in software development processes and software quality, particularly related to Agile development practices and goals. These benefits may not explicitly map to tangible cost savings or return on investment, but they are often more important. Strategic: Highlights the impact on strategic elements of development and testing and the overall alignment with key business objectives. Table 1 presents a summary of the business case based on the composite data collected through the primary research interviews conducted by Pique Solutions. It is important to note that the economic benefits account for only a portion of the developer and tester productivity and efficiency savings associated with the use of Visual Studio quality assurance and testing tools. Table 1: Business Case Summary Economic Business (Output and Quality) Strategic 154% return on investment* over a three-year period, based on tangible cost savings/value: Solution acquisition costs/savings Development and test process savings Management and administration savings Postproduction release savings *Based on a $526,000 net present value (NPV) on an investment of $342,000 over three years. 91% increase in the amount of bugs/defects found and fixed per development cycle 38% increase in code coverage 28% reduction in new developer/tester ramp-up time 26% reduction in the development-to-test cycle time; results in a 14% reduction in production release cycle time 11% reduction in postrelease maintenance, patches, and hotfix items required Better collaboration among developers, testers, and IT management Enablement of Agile development practices Higher/more predictable software quality Increased visibility into the development process 2011 Pique Solutions. All rights reserved. 3

6 The Economic and Business Benefits An important aspect of the overall business case involved the quantification of the interlinked economic and business benefits of the Visual Studio 2010 quality assurance and testing solution as evidenced by customers and partners who had significant historical deployments with the tools. To capture that information, Pique solutions engaged in an in-depth, multiphase, data-collection process. The process involved initial and follow-up interviews with participants and the use of a data-collection spreadsheet instrument that included inputs for 70 unique quantitative data elements along with a provision for qualitative descriptions of the responses. The questions and entries spanned the lifecycle of the deployment, including the acquisition of the solution (and benefits associated with acquisition), the impact on development and testing processes, management and administrative activities, and, ultimately, the impact on production software releases. The composite profile used for the economic and business benefit analysis, based on all of the companies interviewed in the study, is provided in Table 2. It is important to note that the composite profile corresponds to a typical team in the industry, which in many cases is representative of a subset of the broader development team in the larger companies interviewed. Table 2: Composite Profile for Business Case Average Number of Test Staff Average Number of Developer Staff (directly involved in testing) 17 (11 Visual Studio Test Professional; 6 Visual Studio Ultimate) 14 (Visual Studio Ultimate) Average Total Size of Developer Staff 55 Average Number of Active Development Projects Average Major Release Cycle Previous System for Quality Assurance and Testing Acquisition Method for Visual Studio months Migrated from manual process MSDN subscription Based on the composite profile, an analysis was conducted of the return on investment of the Visual Studio quality assurance and testing solution specifically, the net present value of the costs and tangible benefits achieved, on average, by the interview participants. The summary ROI analysis is presented in Table 3, demonstrating a 154% ROI with a payback of months. Table 3: ROI Summary Quality and Testing Return on Investment: ROI and NPV (Three-Year Analysis) Total Visual Studio Value/Cost Savings (PV*) >>>>>>>>>>> $867,946** Total Investment in Visual Studio MSDN Subscriptions (PV*) >>>>>>>>>>> $342,071** Total NPV* >>>>>>>>>>> $525,875** Payback (Months) >>>>>>>>>>> ROI for Visual Studio >>>>>>>>>>> 153.7% *Present value (PV) calculations are based on a discount rate of 6%. **U.S. dollar/exchange rate = Pique Solutions. All rights reserved. 4

7 The investment of $342,000 shown in Table 3 includes the three-year MSDN subscription with Visual Studio 2010 Ultimate and Test Professional, as well as the implementation and training costs indicated by the aggregate data provided from the research participants. Figure 1 provides a breakdown of the undiscounted, three-year benefits by category for the Visual Studio quality assurance and testing solution. The solution acquisition benefits, specifically relating to MSDN subscription benefits and the value of the Load Test Virtual User Pack product included with Visual Studio Ultimate, are significant at 27%. 108,000, 10% Figure 1: Benefits and Savings by Category Visual Studio Quality and Testing Solution Benefit and Savings Summary (Three Years; Undiscounted) 50,400, 5% U.S. Dollar/Exchange Rate = 1 Acquisition Related Benefits 279,210, 27% Development & Test Productivity and Efficiency Benefits Reporting & Administration Benefits 598,135, 58% Production Software Benefits It should be noted that the acquisition-related benefits do not include the substantial savings associated with the retirement of software licenses or the termination of support contracts for the interviewee participants who migrated from other quality assurance and testing tools such as HP Quality Center (which represented only 21% of the respondents). The majority of the benefits and savings (58%) come in the form of the reduced or avoided costs associated with the productivity and efficiency of development and testing staff. That being said, those who did migrate from HP Quality Center did achieve substantive benefits in terms of developer and tester productivity and efficiency, and that data is factored into the economic analysis. Activity-Based Process Improvements: Productivity and Efficiency A key area of focus for the quantitative assessment and primary research involved detailed questions and data collection to identify the distribution of effort for developers and testers across key activities and the average savings in terms of effort and time for those activities based on the usage of Visual Studio quality assurance and testing tools relative to the effort and time required before the use of the tools. Figures 2 and 3 provide a summary of the aggregate data based on the research participants responses. For testers, there were significant savings in all of the areas (ranging from 22% to 38% savings of time and effort) but the largest savings in terms of time and effort was in the area where testers spend the most time test execution and regression testing. One of the study participants provided an example of the magnitude of savings in this area by saying, Because all testing was manual prior to our utilization of Visual Studio, the savings in time here are quite dramatic. For instance, regression testing a particular page in our ASP.NET application might have taken 2011 Pique Solutions. All rights reserved. 5

8 an hour to run through all the scenarios for that particular page. Now, with the coded UI tests, we run through the same test in about 10 seconds. 11% (34% time savings = $49,000 3-year savings) 18% (31% time savings = $73,000 3-year savings) Figure 2: Tester Productivity and Efficiency Savings by Activity Distribution of Tester Effort by Key Activity (Time Savings with Visual Studio by Activity and Three-Year Cost Savings) 41% (38% time savings = $210,000 3-year savings) 18% (24% time savings = $60,000 3-year savings) 12% (22% time savings = $37, year savings) Authoring Test Cases Authoring Test Scripts Test Execution and Regression Testing Documenting and Recording Bugs/Defects Consolidating Test Data and Preparing Reports In terms of the developers who are involved in the testing process, Figure 3 highlights two key points. First, nearly half of these developers time, on average, is spent doing testing-related activities as compared to heads-down coding and development. Secondly, there are significant time and effort savings for the test-related activities, ranging from 22% to 30% savings. Figure 3: Developer Productivity and Efficiency Savings by Activity Distribution of Developer Effort by Key Activity (Time Savings with Visual Studio by Activity and Three-Year Cost Savings) 8% (22% time savings = $23,000 3-year savings) 16% (27% time savings = $56,000 3-year savings) 13% (30% time savings = $47,000 3-year savings) 12% (25% time savings = $42,000 3-year savings) 52% (time savings not applicable) Development/Coding (new code) Pre-build/deployment to test testing Communicating with test staff about bugs/defects Fixing/closing defects and bugs Debugging w/ IntelliTrace 2011 Pique Solutions. All rights reserved. 6

9 Aside from savings based on specific features such as IntelliTrace, the overwhelming theme echoed by all research participants was the benefit of a unified platform and tool set for activities related to development and testing. It is important to note that the activity-based savings identified in Figures 2 and 3 do not necessarily map to tangible, or hard cost, savings. In fact, based on the research participants responses, only about a quarter (25%) of the productivity and efficiency savings result in reducing the number of resources on the development and testing teams, using fewer outsourced or contract resources, or avoiding the cost of bringing on new resources as development and testing workloads grow. This 25% of the efficiency and productivity gains was the amount used to calculate the return on investment in the previously mentioned analysis. (See Table 3.) According to the customers and partners interviewed, this is likely a very conservative figure, particularly for years two and three of the analysis, when development and testing teams are able to absorb substantial growth in the development portfolio without adding additional head count. The balance of the productivity and efficiency savings (75%) is reflected in the ability of existing development and testing teams to increase their output per cycle and often to shorten the developmentto-test cycles. As a result, the bulk of the productivity and efficiency savings quantified in the study is realized in the business metrics related to output and software quality. These metrics, also captured in the research, are summarized in Table 4. Figure 4: Summary of Business Benefits 100% 80% 60% 40% 20% 0% 91% Increase in defects found/fixed Visual Studio Quality Assurance and Testing Solution Business Benefit Summary (Quality and Cycle Time) 38% Increase in code coverage 11% Reduction of postrelease work items 26% Reduction of devto-test cycle time 14% Reduction of production release cycle time Table 4: Business Benefits of Visual Studio 2010 (Output and Quality) Number of Defects Code Coverage Postrelease Work Items Development-to-Test Cycle Time Production Release Cycle Time 91% average increase in the number of bugs/defects found and fixed per development cycle 38% average increase in code coverage 11% average decrease in the number of maintenance, hot-fix, and patch items required 26% average reduction in development-to-test cycle time 14% average reduction in production release cycle time 2011 Pique Solutions. All rights reserved. 7

10 As illustrated in Table 4, the study data reveals some very substantial improvements in both quality and cycle time, based on the process benefits achieved in using Visual Studio 2010 for development and testing. They substantiate the increase in the flow of value and reduction of waste in the development cycle. While the metrics listed in Table 4 did not explicitly factor into the return on investment analysis, it does not mean that they do not have economic value. Rather, the value of these types of metrics is specific to the type of business and type of application being developed and therefore cannot be easily incorporated into a composite economic analysis. With that said, improvements like these for quality and cycle time often trump, and even obviate the need for, a formal ROI analysis. Summary of Strategic Benefits We re spending much less time on fixing/closing bugs because the findings are getting to the developers so much faster than before. At a minimum we re finding and fixing approximately 3 times the number of bugs that we were prior to moving to Visual Studio and TFS. Development Lead, Education Software Provider The final element of the business case sought to understand the strategic benefits of the Visual Studio quality assurance and testing solution, in an effort to find relevance for a broader IT or even business strategy. In our data-collection exercise, we presented a list of eight strategic benefits and asked respondents to rank the top three benefits. The synthesized results for the top three strategic benefits are listed in Table 5. Table 5: Strategic Benefits of Visual Studio 2010 (Top Three Based on Stack Ranking) Rank Strategic Driver 1 Better collaboration among development, testing, and IT management 2 Enablement of Agile development practices 3 (tie) Higher/more predictable software quality and Increased visibility into the development process Collaboration was by far the top choice across the interviewee population and is very consistent with the economic and business benefits that the study brought to light. The ability for developers and testers to work much more closely together, on the same platform and from the early stages of development, drives most of the benefits quantified in the study Pique Solutions. All rights reserved. 8

11 Conclusions and Key Takeaways Pique Solutions developed an intuitive framework to present the business case for Visual Studio quality assurance and testing tools. It also collected a deep data set that validated the framework and provided the basis for quantifying the solution s economic, business, and strategic benefits. In conclusion of the study analysis, the key takeaways include: A common theme echoed by nearly all of the interviewees was the benefit of a single platform and tool set for development and testing activities, which improves productivity and efficiency and enables better collaboration among developers and testers. The integration of the tools and the ability to perform quality assurance and testing functions in the primary tool used by both developers and testers is a key driver for many of the economic, business, and strategic benefits cited in the study. Beyond the single platform and tool set, several Visual Studio 2010 features specific to quality assurance and testing were called out as providing value. These features included IntelliTrace, Lab Management, Coded UI Testing, Load Test Virtual User Pack, and Team Foundation Server. There are substantive economic and business benefits both for companies migrating from other vendors quality assurance and testing tools and for companies migrating from manual processes. While the economic value (ROI) is substantial and easily justifies the investment, the more important benefits lie in the productivity and efficiency improvements, which result in improved metrics related to quality and cycle time. The enablement and scaling of Agile development practices is a key driver for the adoption of Visual Studio and helps companies to realize the benefits of Agile development, including increasing the flow of value, reducing waste, and providing transparency into the development process. Call to Action For more information about Visual Studio testing tools, go to: For help with assessing the value of Visual Studio quality assurance and testing tools for your organization and with developing a business case specific to your company, please send a request to: visualstudio@piquesolutions.com or call Pique Solutions. All rights reserved. 9

12 Appendix: Business Case Framework Approach The Pique Solutions research and analysis study was designed to assess the impact on the software development process and quantify the costs and benefits associated with the acquisition and use of Microsoft Visual Studio quality assurance and testing tools. In terms of the business case framework, the structure of the framework includes three major categories as illustrated in Figure 5. The business case provides a way to structure and present the value of the Microsoft Visual Studio quality assurance and testing solution in a manner that communicates the economic, quantitative, and strategic benefits based on actual usage of the tools. Figure 5: Pique Solutions Approach to the Business Case Framework Highlight Strategic Impact Justify the Investment Demonstrate judicious use of scarce financial resources relative to other investments. Show a compelling ROI for investment in Microsoft Visual Studio quality and testing tools. Demonstrate Output & Quality Improvements Measure the tangible metrics for improvements in software development process and software quality. They may not explicitly map to cost savings or ROI but are often more important. Highlight the impact on strategic elements of development and testing and the overall alignment with key business objectives. Economic: Demonstrates the judicious use of scarce financial resources relative to other potential investments. Shows a compelling ROI for Visual Studio 2010 Ultimate and Visual Studio 2010 Test Professional, based on a the tangible cost savings associated with the acquisition and usage of the quality assurance and testing capabilities over a three-year period. Business (Output and Quality): Measures important, tangible metrics for improvements in software development process and software quality, particularly related to Agile development practices and goals. These benefits may not explicitly map to tangible cost savings or ROI, but they are often more important. Strategic: Highlights the impact on strategic elements of development and testing and the overall alignment with key business objectives. Using the business case framework for economic, business, and strategic benefits, Pique Solutions constructed and validated a way to present the business case as it pertains to the adoption and use of quality assurance and testing tools by customers. The lifecycle includes acquisition of the quality 2011 Pique Solutions. All rights reserved. 10

13 assurance and testing solution, the benefits for application development and test processes, management and administration, and, finally, the savings and benefits related to the release and postrelease phases. Using the framework categories, Pique Solutions identified a set of cost and value considerations that commonly drive the initial research phase of the project. The deployment lifecycle and key drivers are shown in Figure 6. Figure 6: A Deployment Lifecycle Framework/Drivers Used in the Business Case Acquisition Application Development & Test Process Management & Administration Release/ Postrelease Visual Studio Licensing (MSDN subscription) investment Implementation (internal) Training investments Other investments Licensing cost savings (if migrated from another testing platform/system) Savings in load and performance testing MSDN subscription savings Other savings Test staff s efficiency and productivity savings by activity Development team s efficiency and productivity savings by activity Shortened development-to-test development cycle Increase in the number of defects identified and fixed per development cycle Increased code coverage per development/test Savings related to lab management costs Savings related to reporting costs Other savings Increase in features included in major releases Reduction in time from requirements setting to major release (that is, time to market) Reduction in support costs related to defects found by customers Reduction in costs for maintenance, hot-fix, and patch releases as a result of fewer defects Other savings cycle Other savings 2011 Pique Solutions. All rights reserved. 11

14 Strategic Benefits The business case framework also included the strategic business value drivers realized as a result of the adoption and usage of Visual Studio quality assurance and testing tools. The following list of strategic drivers was included in the framework and corresponding research: Better overall business agility (time to market) Better predictability of development costs Collaboration among the development, test, and management staff involved in development and test activities Enablement of agile development practices Higher/more predictable software quality Improved customer or partner relationships Increased visibility into the development process Reduction in risk associated with production releases Research Methodology With the business case framework and drivers identified, Pique Solutions designed an in-depth, multiphase data-collection and interview process. The process comprised 14 complete customer data collections and additional validation and data gathering from three partners, which together represented hundreds of quality assurance and testing solution deployments. The roles of the interviewees included test leads, quality assurance managers, development managers, application Managers, and chief technology officers. The research process involved an initial screening based on usage of the relevant Visual Studio products and the ability to fully respond to cost and business value questions. For companies that passed the screening, an initial interview took place to capture the following data: Company type Types of applications Existing tools used prior to Visual Studio Type(s) of development Number of developers, number of testers, tools used, etc. Key drivers for adoption Adoption and implementation costs Quantitative and qualitative benefits of the Visual Studio quality assurance and testing tools Following the interview, each company was given a detailed data-collection instrument, which contained 70 unique, quantitative data elements along with a provision for qualitative descriptions of the responses. The questions and entries spanned the lifecycle of the deployment, including the acquisition of the solution (and benefits associated with the acquisition), the impact on development and testing processes, management and administrative activities, and ultimately the impact on production software releases. Once data collection was completed, the data was validated and follow-up interviews were scheduled to confirm the entries and clarify any ambiguities. The data was then synthesized into the composite profile (using averages of all values), which was used for the economic, business, and strategic business case Pique Solutions. All rights reserved. 12