Masked defect in software testing

It measures the overall quality of the system in terms of attributes like correctness, completeness, usability, performance, etc. The bug may have one or more versions of the software and might be. So, a software bug is a defection from the requirement that leads to the software failure. Its among the three unusual defects found during testing.

Defect triage is a process where each bug is prioritized based on its severity, frequency, risk, etc. A latent defect defect usually accompanies a software during the production process. The cost of fixing the defects totally depends upon when the defect is found, if the defect is found in the requirements or design phase, then it is relatively easy to fix and less cost effective and if the defect is found out while acceptance testing or when the software is live, then the cost will be relatively high because the defects have to be fixed and re tested before it can be deployed. It comes into picture when the test execution phase is started. Masked defects are the defects covered by or marked by another defect and cant be identified until the latter is detected. A masked defect is an existing defect that hasnt yet caused a failure just because another defect has prevented that part of the code from being executed. When a user clicks it, this should go to the add customer form, but a missed bug was residing in it known as add cell no. A masked defect is types of software bugs officially existing in the software product. Here defect in adding the cell no is the masked defect.

Masked defect archives the official 360logica blog. Dmt is extended to estimate the probability of the existence of a hidden fault in c for a passing test suite. Therefore i could have a bug against automated test code which is compiled with the product code as an issue type test code defect, or a bug in the product code which would be an issue type of product code defect, or a bug in the spec which would be a spec issue etc. Earlier i have posted a detailed post on software testing life cycle stlc, if you havent gone through it, you can browse software testing. In case there is a defect in the link, but it was not found by qa and it went live. Software testing tests 33 use cases and discovers 4 defects.

The limitation with current defect tracking tools in software testing is the inability to recognize a duplicate bug report. A defect which hampers the execution flow but there is no test cases to be failed. But, it has not caused failure in software testing of the application execution mostly as it is secured or masked by other types of defects in software testing. The goal of bug triage is to evaluate, prioritize and assign the resolution of defects. Assume that you are testing the help of any application, and the application has a help page where one help link is given.

To start with, lets us first know why to software defects arise. Deliverable baseline establishment of milestones where deliverables will be considered complete and ready for further development work. Software defects bugs are normally classified as per. We use 1 database to track all bugs which we identify as any anomaly in the entire software development lifecycle. Masked defect is the defect which is hiding the other defect, which is not detected. Testers always encounter problematic behaviors of software when they are performing. The process of intentionally injecting bugs in a software program, to estimate test coverage by monitoring the detection of those bugs, is known as bebugging. Means if there is a existing defect which is not caused found to reproduce another defect. Could you clarify whats difference between latent defect and masked defect. A latent defect is an existing defect that has not yet caused a failure because the sets of conditions were never met.

Latent defect is one which has been in the system for a long time. Masked defect in software testing september 05, 2019 among the numerous defects detected by the team during software testing, there are a few that easily pass the test and stay hidden in the software even after its release, until some unexpected scenarios or inputs are implemented by the user, in the realworld environment. When a deliverable is baselined, any further changes are controlled. Masked defects regularly are hard to recognize since they dont get recognized until the real origin of defects in software testing hiding it gets revealed or a particular operation. Triage term is used in the software testing qa to define the severity and priority of new defects. The software engineer did not have the proper educational background to prepare the software artifact. Talking about defects, this blog will take you through an interesting defect masked defect. Hi, could you clarify whats difference between latent defect and masked defect. Even though both latent and masked defects are present in the system for a long time and are nonidentified, yet they are vastly different from one another. It is an existing defect that has not caused a failure because another defect has prevented that part of the code from. What is latent defect and masked defect in software testing. What is the difference between latent and masked defects.

Dynamic mutation testing dmt is used to estimate st. At the same time, also passes to the preproduction testing. What is latent defect software testing interview questions and answers,testing difference between latent and masked defect,types of. Defect management process a defect is a variance from expectations. What is latent defect software testing interview questions and. To manage defects properly requires a process that prevents, discovers, tracks, resolves, and improves processes to reduce future defect occurrences. I heard people talking about them but i m not sure what they are and its importance in testing.

This section includes the description of some commonly used documented. Testing difference between latent and masked defect. For instance, if you test a login form consist from two data fields, login and cancel buttons, along with remember me check box, when press login, an unhandled exception fires, so if the remember me check box didnt work you will never know until a successful login process has been done. Defect a software bug arises when the expected result dont match with the actual results. It is important to understand the difference between.

It means the other defect is masked with the previous defect. A masked defect is an existing defect in the software that hasnt caused a failure mainly because another defect is hiding that part of the problem. Software testing is the process of evaluating a system to check if it satisfies its business requirements. The software engineer was not informed about something by a colleague. A defect does not necessarily mean there is a bug in the code, it could be a function that was not implemented but defined in the requirements of the software. As can be derived from the formal definition above it indicates what percentage of the defects present in a software product is detected by the test phase under consideration. You will get message that add customer link was not working. It includes tracing the accuracy of the devices used in the production, development and testing. If a developer finds an issue and corrects it by himself in the development phase then its called a defect. Since a masked defect hides another defect which is unidentified, failing to test a. As i mentioned earlier, there is a contradiction in the. It can also be error, flaw, failure, or fault in a computer program.

Defect management system defect prevention implementation of techniques, methodology and standard processes to reduce the risk of defects. Fault masking is an occurrence, in which one defect prevents the detection of another defect. Masked defects often are difficult to identify since they do not get detected until the actual defect hiding it gets uncovered or a specific operation is. So the print dot matrix printer error is a masked software bug. Documentation testing involves testing of the documented artifacts that are usually developed before or during the testing of software. Defect management important basics of software testing. Day manual testing defect management defect types. Why bugdefect triage is important in software testing. Basically, it is used for ensuring the quality of software to the stakeholders of the application. Fault masking is an occurrence, in which one defect prevents the detection of another software testing blog from testpro operations.

A masked defect is an existing defect that hasnt yet caused a failure just because another defect has prevented. If testers find any mismatch in the applicationsystem in testing phase then they call it as bug. A masked defect is a defect already existing in the software, however, it hasnt caused any failure in the application execution mainly because it is covered or masked by another defect. Software testing proves that defects exist but not that defects do not exist. This implies that while testing, the aforementioned scenario was never experienced. Not all software defects are caused by coding errors. Masked defect the hidden face of a defect the official 360logica. These questions include tips to prepare testing interview, manual testing. Next page explain the difference between latent and masked defect. Software testing interview questions for fresher and experienced with a list of frequently asked questions and answers in interviews. In software testing defect detection percentage is one of the most commonly used metrics for the effectiveness of a phase in the test life cycle. Three unusual defects identified during software testing linkedin. Defect report template or bug report template is one of the test artifacts.

Latent bug is an existing uncovered or unidentified bug in a system for a period of time. Mention what the difference between a defect and a failure in software testing is. The variation between the actual results and expected results is known as defect. It means there is an existing defect that is not caused for reproducing another defect. Difference between latent and masked defect with an example. A simple comparison of description of current bugs with all the previously reported bugs would not serve the purpose. What is latent defect software testing interview questions and answers, testing difference between latent and masked defect,types of unusual software defects, latent and masked defect, what is. Read on masked defect is commonly known as a defect that hides other defects in the system. As the name suggests, this defect is masked or hidden by other defect. Masked defect masked defect the hidden face of a defect. It is important to understand the difference between these two types of bugs and keep them in mind. A masked defect is a defect already existing in the software. The general principles of a defect management process are as follows.

One common source of expensive defects is caused by requirement gaps, e. Software engineers work very hard to produce highquality software with a low number of defects. Bug report template with detailed explanation software. Its very best example is if you are testing the help of any application. Please briefly explain why you feel this question should be reported. That probabillity can be viewed as a metric that measures the quality of the passing test suite. Services may be tested for quality control with sampling of service interactions. What are some examples for a latent defect in software. Documentation for software testing helps in estimating the testing effort required, test coverage, requirement trackingtracing, etc. Masked defect the hidden face of a defect the official. What are some examples for a latent defect in software testing. Masked defect hides the other defect, which is not detected at a given point of time. A flaw in a component or system that can cause the component or system to fail to perform its required function, e. Some software defects are not identified during testing as they can mask or stay latent.