Ranger4 DevOps Blog

Forrester Study of Service Virtualization at a Major European Bank

Posted by Paul Hancock on Thu, Aug 7, 2014 @ 10:08 AM

Forrester published an extremely powerful study into the Economic Impact of IBM Rational Service Virtualization and Test Automation Solutions at a large European bank. The customer received an ROI within 2 months and the cumulative financial benefit over a 3 year period of $6.2 million. This has been an extremely successful initiative for the bank given their investment of $433,149 over the 3 year period. It's also worth noting these savings continue for the bank at more than $2.5 million per annum.                   

The study highlights the benefits and costs of implementing IBM Rational Service Virtualization and Test Automation solutions. The customer, a large European bank with more than 30 million customers and 3,500 branches worldwide, implemented two of the IBM testing solutions — Rational Test Workbench (RTW) and Rational Test Virtualization Server (RTVS) — for one division’s software development group. The solutions were first implemented in 2009 by Green Hat Software, prior to its acquisition by IBM in 2012. 

Previous State

Read More

Topics: GreenHat, Service Virtualization, test automation

UrbanCode Plugin for Rational Test Workbench (GreenHat)

Posted by Paul Hancock on Mon, Jun 16, 2014 @ 09:06 AM

UrbanCode is Application Release Software from IBM that enables organisations to release more software faster. Green Hat is software from IBM that enables organisations to virtualize services and systems which are for example unavailable or expensive to provision. This is often referred to as 'Service Virtualization' or Application/Component Virtualization.  

Read More

Topics: GreenHat, Service Virtualization, UrbanCode, continuous delivery, DevOps, application release automation

A View on the Forrester Service Virtualization Report

Posted by Paul Hancock on Fri, Mar 14, 2014 @ 14:03 PM

In the last couple of years there’s been a real buzz around Service Virtualization (SV). The customer benefits are clear, quantifiable and achievable within a twelve month timescale. But does Forrester have the same opinion?    

Read More

Topics: GreenHat, Service Virtualization, test automation

Integration Testing & Service Virtualization: Why should you do it?

Posted by Paul Hancock on Fri, Mar 7, 2014 @ 13:03 PM

What is Integration Testing and Service Virtualization?

Integration testing is a phase in software testing when individual software modules are aggregated and tested as a group. This phase occurs after unit testing and before validation testing. The inputs to the integration testing phase are the software modules that have been unit tested - they are combined into larger groups tests are applied to the groups as per their definition in an integration test plan. The output is the integrated system ready for system testing

Read More

Topics: GreenHat, Service Virtualization, Integration Testing, test automation

Service Virtualization: Considerations at Implementation Time

Posted by Steve Green on Sat, Feb 8, 2014 @ 00:02 AM

The evolution of applications is accelerating. Applications are not discrete islands but build on complex, interconnected sets of services including disparate technologies, developers, deployment topologies and organizations. Developers are directed to deliver high-quality applications while testing expenses are often limited. A combination of automated integration testing and test virtualization can help test teams to improve quality and keep up with the rate of change.

Measuring success

A simple measure of success for a test manager is the ratio of captured defects versus escaped defects. However, success or failure is not simply determined by the number of defects that have escaped into production. Categorization of defects to determine where the defect should have been found can dramatically reveal the efficiency or inefficiency of your testing. For example, if a functional defect is found during end-to-end system testing, the costs of remediation would far exceed the costs of fixing the defect as it was introduced in an earlier development phase. The increased costs would be due to factors such as: more regression testing, more test resources, usage of more live-like environments and greater requirement for coordination.

Read More

Topics: GreenHat, Service Virtualization, Integration Testing, DevOps