How Development Testing Reduces Software Development Costs
By Jason Schadewald, Product Manager at Parasoft
Following up on the overview of the business benefits of Development Testing, let's take a closer look at how Development Testing reduces software development costs through:
- Elimination of Rework
- Reduced Technical Debt
- Earlier Remediation
How Development Testing Eliminates Rework
Which makes more sense: preventing a heart attack or testing to determine if a heart attack occurred? Obviously, a prevention methodology including a healthy diet and exercise is preferable.
Similarly, the prevention methodology of Development Testing -- static analysis, unit testing, and peer review -- is 100% effective at preventing known defects and known security flaws while guaranteeing that past fixes stay fixed and new features remain functional for all future versions of the software under test. Hence, all costs associated with rework can be completely eliminated.
- Reduce rework costs up to 100%
- Reduce “same bug, different place/time” costs up to 100%
How Development Testing Reduces Technical Debt
Technical debt refers to the eventual costs incurred when software is allowed to be poorly designed. By analogy, consider manufacturing before the concept of replaceable parts and assembly lines. Whenever something broke, the options were to replace it entirely or pay a large sum to have a part remade by a specialist.
Software follows the same rules, although the results and consequences are only visible as skyrocketing costs and development complaints that there is not enough time.
Development Testing exposes poor design, facilitates collaboration, and highlights untested code to keep your projects on time and on target. In fact, the following operational expense savings have been experimentally proven.
- Reduce time to make code changes by over 50%
- Reduce costs of code changes by 50%
In the traditional development process, defects are found in QA, which get kicked back to development for remediation. Slightly more modern processes involve tighter coupling or more frequent development and test cycles in an attempt to “shift left” so that testing occurs earlier. This methodology fails to recognize that early detection is not the same as prevention.
By contrast, in a Development Testing model, software engineers use automated tools to prevent defects as the code is being written. Just like a clean room prevents foreign particles from contaminating growing silicon wafers, Development Testing establishes practices that do not allow for defects to occur in the first place. In this way, the precursors to errors can be fixed in place while the cost of remediation is low.
- Avoid QA and associated overhead
- Reduce new defect creation by 88%
Want to learn more about Development Testing? Watch this 1-minute introduction:
Or, see Parasoft's Development Testing platform data sheet.