Defect management is the process of identifying, documenting, and tracking defects (bugs or issues) in a software product. It is an important part of the software development process that ensures defects are identified and addressed in a timely manner.
Analyzing bugs that need identification, documentation, monitoring, and addressing large codebases of complex software applications can be a daunting task. In addition, satisfying the expectations of end-users is also crucial. This is where Defect management comes to the rescue.
Since making a software application 100% defect-free is impossible, Defect management helps minimize defects, identify defects in the earlier stages of the software development lifecycle, and mitigate the impact.
Defects in software testing are variations between the end’s requirements or business requirements. A defect in a software application is an error in the application’s code that provides the expected output.
Testers who validate a code snippet see deviations or differences between the expected and existing outcomes. These variations are known as defects. They typically identify defects during test execution.
The defect is also known as bugs, issues, or incidents.
Defect prevention is far more successful and efficient in lowering the number of flaws when managing defects. It also makes it very affordable to repair any shortcomings discovered early in the software development process. Simply put, finding and addressing issues constitutes the Defect management process.
Less buggy software will be readily available in the market if Defect management is conducted more effectively and with full attention. Most businesses use a Defect management process that includes defect discovery, removal, and improvement.
The primary objectives of adopting Defect management for various projects or organizations are:
A reductive process, defect data management requires as much input as feasible. Customers, product managers, quality test engineers, software engineers, and tech support staff have important fault input that needs documentation. It functions best when everyone notifies the system of any uncovered flaws.
You must consider Defect management because it helps in several ways, such as -
Before proceeding further in this Defect management tutorial, let us look at the benefits of the Defect management process, which optimizes the organization's workflows. Software tools involve the detection or tracking of non-technical issues.
Having looked at the benefits, you must also consider the limitations for adequately implementing the process in the correctly designated areas.
The below defect life cycle describes the workflow of the Defect management process -
We are often involved in designing, testing, deploying, and shipping products that we cannot get ahead to put proactive Defect management processes and tools to reduce the risks upfront
So, let us look at the Defect management phases in detail to manage our defects effectively
Because it is less expensive, you can lessen the impact in the initial stages of addressing or resolving faults. But for later stages, finding flaws and then fixing them can be expensive, along with exacerbating the impacts of a problem.
The following are the main steps in defect prevention:
This approach saves money because addressing flaws discovered during early testing doesn't need much. The best method for minimizing the impact of a defect is to remove it within the initial development stage.
When a deliverable (or product) hits its predetermined milestone during development, we can state that it is a baseline. As the product is transferred from one milestone to the next, the defect in the deliverable has a more significant impact on the existing system. In other words, we may claim that you can control the further changes once a deliverable is baselined.
The following steps in the defect discovery process:
Only a flaw is detected if developers have acknowledged or recorded it as a valid one. When a fault is officially reported to the development team and recognized as a defect, we can claim the defect's detection.
To fix the issue, you can take the actions below.
Everyone involved in the project must look back and determine the source of the issue to improve the process. Though you need to prioritize faults and address them during the defect resolution process, this does not imply that lower priority issues are unimportant or do not significantly influence the system from a process standpoint.
All flaws found are considered critical problems from the process improvement perspective. Based on that, you can adjust the base-lining document, review process, and validation process to catch defects earlier in the Defect management process when they are less expensive.
A defect report is a detailed document that contains defect information like its description, stack traces, expected and actual outcomes, and other vital information. It ensures the defect is identified and fixed before it affects our users. A defect report can be 2 to 20 pages or more.
You should include the following information in your Defect report.
Intrigued to know how to write a good bug report? Check our advanced guide on how to write a bug report.
Defect management is the key aspect of the software development process. Irrespective of whether the bug is minor or major, it’s vital to log, manage and fix each defect to build effective and scalable applications. Hence, choosing a defect management platform is critical. Several solutions like LambdaTest available in the market come with defect tracking features.
LambdaTest is a cloud-based cross browser testing platform that enables developers and testers to perform live-interactive and automated testing of their websites and applications across 3000+ real browsers, devices, and operating system combinations.
It also offers testing on a real device cloud that helps you identify all the bugs while testing your web and mobile apps in real-world scenarios. LambdaTest supports different developer tools for app and web testing that make it easier to identify and fix defects instantly.
While testing applications, if you come across any defects, you can directly mark and report them using LambdaTest’s one-click bug logging feature to your favorite bug tracking tools like Jira, Asana, Trello, Bugasura, etc.
LambdaTest has an in-built Issue Tracker that allows you to track and manage defects in one place. You can share your logged defects across various platforms to your team members via e-mails and shared links, export them in PDF and XLSX formats, and do much more. Issue Tracker also has the Reproduce at LambdaTest feature to retest your defects on the same test environment.
LambdaTest also has a Test Logs library that contains all the logs of your browser and app testing.
Let’s consider that you reported 52 bugs, and out of them, only 34 are identified as actual defects. It implies that 18 reported defects were incorrect and involved some error while performing software testing. So, how can you estimate the quality of test execution?
A few metrics are helpful when it comes to measuring the quality of test case execution
If the value of DRR and DLR is low (5~10%), the better the quality of the test execution
For the above scenario, the defect rejection ratio is 34.61%, and the defect leakage ratio is 52.94%
Defect management is the core of software testing. The entire software development process should adhere to the Defect management approach, not just specific testing or development activities.
You can find and fix software issues as a part of the Defect management process. The entire Defect management procedure will assist in identifying the issue as early as possible and ensuring that the end-users get a high-quality product.
The primary purpose of Defect management is to minimize the issues or bugs in the software development process. It helps continuously monitor application quality throughout the entire software lifecycle.
It is the cycle of a defect, right from identifying defects to its closure. The defect cycle ensures the software is of optimum quality. Preventing, identifying, and rectifying defects is essential to improve software quality.
The terms 'bug' and 'defect' are often used interchangeably in software testing, but they have distinct meanings. A bug refers to a specific error or flaw in the software code that causes it to malfunction or produce unexpected results. On the other hand, a defect is a more general term used to describe any flaw or imperfection in a product that hinders its value or usability. While both represent issues in the software, bugs are more specific to coding errors, while defects encompass a broader range of imperfections.
Salman works as a Digital Marketing Manager at LambdaTest. With over four years in the software testing domain, he brings a wealth of experience to his role of reviewing blogs, learning hubs, product updates, and documentation write-ups. Holding a Master's degree (M.Tech) in Computer Science, Salman's expertise extends to various areas including web development, software testing (including automation testing and mobile app testing), CSS, and more.