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Best to solve defects - requirements, plan, design, code / testing phase?
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Answered by: Satya Prakash
- Oct 4th, 2005
In any phase, the sooner we see a defect, the less is the cost spent on rectifying the defect. It becomes a costlier affair in later stages. The best phase is Requirements phase. When the defect is found in later phases, it costs more for its correction.
rohan.satpute
- Feb 6th, 2011
As we are aware, in SDLC later the defects identified, costlier is the Project Delieverable. Earlier the defect identified & resolved, cheaper is the costing. So, as per the provided option, Best time to resolve the defects is during the Requirement Phase.
nitinjoshi226
- Jan 8th, 2011
The Best time to solve defect is at the requirement Phase - by business Analyst, plan, design - for developer using static analysis tools and testing phase by testers. Defects find at the in...
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What is the purpose of software testing's - Bug removal, System's functionality working, quality or all?
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Answered by: Satya Prakash Itharaj.
- Oct 4th, 2005
The main purpose of Software testing, I think is not to remove the bug but to find the bug. Also ensuring the application works correctly as per the requirements and thereby increasing the quality of the product and increasing the confidence in the product.
manchoc
- Feb 18th, 2011
Its Quality. Testing is a Quality Control (QC) activity. Software testing is the process of finding the defects so as to improve the quality of software. It doesnt mean that the software is 100% defect free but the quality will be high after validating when compared before testing.
rohan.satpute
- Feb 6th, 2011
Purpose for Software Testing:1. To ensure whether the software Build is as per User Requirements/.2. To ensure reasonably Bug free Software, to uncover bugs withing software, if any.3. To improve qual...
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Requirements Traceability in Product Testing
What is the importance of requirements traceability in a product testing?
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Geethika Gayathri- Member Since Mar-2010 | Mar 19th, 2010
Traceability matrix maps the requirements to the test cases written. The matrix will help us to check if we have attained 100% test coverage or not.
yuganr
- Mar 23rd, 2011
Requirements traceability matrix maps the requirements to the?prepared test cases?to estimate completion of requirements coverage?in product testing.
krishnagovinda
- Feb 3rd, 2011
Requirements Traceability is very impertant in Product Testing. We?acknowledge the?testing activity to be complete only when the RTM is complete. The Tester is assured that proper testing is done only when the test cases trace back to all the requirements.
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Prevent Defects
How will you prevent defects from a tester point of view?
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vkaranthaa- Member Since Apr-2010 | Apr 20th, 2010
Defect prevented at the early stage of the lifecycle saves lot of money and effort to the company. There are different ways of preventing defects. Some examples are as follows:
a. Use previously logged defects and analyze the pattern incase its a existing application / system
b. Review and inspections of the analysis, design and coding artifacts to make sure they adhere to proper guidelines
c. Review of test cases written by testing team from development team and Business users / analysts to avoid any gap
d. Have testing from development team of the integrated application before delivering it to the testing team.
We have used all these and have found them to be effective in reducing no. of defects.chaitu83
- Nov 25th, 2010
Testers should be involved in discussions with business analysts and Development team in the design phase to have clear understanding of the requirements.Prepared test cases should be reviewed with Bu...
naveenanand
- Nov 11th, 2010
1) Both the developers and testers should have sound knowledge about the requirements of the customer.2) Both verification and validation should be perfect.3) Testers should have a...
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Integration testing
Who is resposible for integration testing?
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surendra_kumar- Member Since Nov-2006 | Jun 11th, 2008
it is not just the developer OR the Tester is responsible for integration testing, Both of them are equally responsible according to their responsibilities. The developer who writes the code is responsible for performing the integration of modules w.r.t. code ( should be understood as part White Box Testing ) Then after checking the modules for their integration it will be passed on to the Q.A. team, Here it will be the responsibility of the Q.A. team to check the integration b/w the modules according to the requirement specifications.
manii17k
- Oct 13th, 2010
Don't worry about integration testing but u need to have idea about tht basically integration testing is done by white box test engg (developers )but as a black box test engg u need to have that idea .
mathan_vel
- Oct 12th, 2010
Integration Tester(Integration QA Analyst) is responsible for the Integration. Its up to the role of the tester. But in our concern for Integration QA Analyst is the responsible person.
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Ad-hoc Testing
Ad-hoc testing is performed when there are no requirements or specifications to draw upon. How well can you discover defects through ad-hoc testing?
prasad_ga
- Jun 6th, 2010
The success of ad-hoc testing in the absence of requirements or specs depends upon the following The Testers expertise ona) Application under testb) Testing experienceIf 2 testers ...
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Test a Coffee Cup
What test cases would you write when testing a coffee cup?
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crazytester- Member Since Dec-2009 | Jan 2nd, 2010
Ask your interviewer for the coffee cup requirement. A tester should have a knowledge the customer requirement and according to the requirement tester will derive the test cases for the testing. But If the Interviewer is unable to give you any requirement then you can go with below test cases -
- Volume of the coffee cup ? [ functional ]- Weight of coffee cup ? [ functional ]- Upper surface area of the coffee Cup ? [ functional ]- With handle without handle ? [ functional ]- Grip of the cup ? [ functional ]- Any Leakage ? [ functional ]- How long that cup will keep the coffee in required temperature ? [Stability]- Reusable ? [ functional ]- Breakable / Unbreakable ? [ functional ]- Can is cup stands properly in jerking condition ? how much force required to make the cup down ?- Color of the coffee cup ? [ UI ]- Grip of the cup ? [ UI ]- how essay to sip the coffee brew ? [UI]- How easy to clean the cup ? [ UI ]FromPlano
- Feb 25th, 2010
In this day and age (year 2010) even many third world countries have microwave and dishwasher in their homes. So, 1. Verify the coffee cup is Microwave proof.2. Verify the coffee cup is Dishwassher pr...
jayeshkatariya
- Feb 17th, 2010
Additional Test cases that are not mentioned here1. Check if coffee cup is of the desirable size, as there is a difference between that and Tea Cup2. check if coffee cup is having handle that is of co...
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Isolate the Problem
The BlackBerry handheld has a basic calculator. With the software load you are testing, you find that you cannot enter the number "6". What steps would you take to further isolate the problem?
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Melinda Young- Member Since May-2009 | May 26th, 2009
1. Type 0~5 and 7~9 for Calculator, make sure whether the other numbers can be inputed. (This is to check Calculator can do wht number input well or not)
2. Try 18/3 for example with Calculator (This is to check 6 can be displayed well or not)3. Exit Calculator, dial a telephone number which contains 6 or try other applications (for example email/text/address...) to input number 6(This is to check key "6" works well or not outside of Calculator)kurtz182
- Dec 11th, 2009
Perform a combination of the following tests in order to isolate the problem: 1) Enter numbers 0-5 and 7-9 in the calculator application to determine whether other numbers fail to display.2)...
srinivasulub1981
- May 27th, 2009
HIFirst check whether the same number is working while dialling, if yes recheck the issue and log the issue simplySrinivas
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How will you select a models (like spiral, v-model) for a particular project?
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Amit k Garg- Member Since May-2009 | May 4th, 2009
It depends on origination then type of project, time frame and money.
Example:
If project requirements are clear and fixed then we can use water fall or V-Model.
If creating a new project on basis of existing project with some additional features, in new language, different UI like these thinks, then we should prefer water fall.
If requirements are not clear and client is also not clear that what he is expecting then we should go through prototype model.
If you dont have all requirements but you need to start project then you should prefer Spiral Model.kurtz182
- Dec 7th, 2009
The software development model (spiral, v-model and waterfall) chosen in an organization depends on organization budget, size, resources and the time allotted for development.
mathan_vel
- Aug 27th, 2009
It purely depends up on the organization level,organization time Period (Schedule), Cost , Size and Clear cut of the project
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Quantitative Metrics
What are the Quantitative Metrics collected in testing projects?
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kurtz182- Member Since Nov-2009 | Nov 18th, 2009
A Test metric is a standard means of measuring some attribute of the software testing process. They establish test progress against the test schedule and may be an indicator of future results. Metrics are produced in two forms – base and derived metrics.
Examples of base metrics:
# New test cases
# Regression test cases
# Test cases run
# Test cases not run
# Passes
# Fails
# Test cases under investigation
# Test cases blocked
Examples of derived metrics:
% Test cases complete
% Test cases passed
% Test cases failed
% Test cases blocked
% Test defects correctedsrinivasulub1981
- Nov 28th, 2009
HiMetrics can be prepared at any level of SDLCRequirements:-> Schedule Variance-> Effort Variance-> Frequency of CR's, etcTesting:-> Test cases count per module-> Test cases types: ...
kurtz182
- Nov 18th, 2009
A Test metric is a standard means of measuring some attribute of the software testing process. They establish test progress against the test schedule and may be an indicator of future results.&n...
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Test Database Upgrade
Suppose a DB has just been upgraded from Oracle 10g to 11. What testing factors will you look at?
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kurtz182- Member Since Nov-2009 | Nov 30th, 2009
1) Test the upgrade itself. Do problems arise? Has anything new been introduced that needs to be accounted for? If so, make sure it works properly.
2) Run functional tests that rely on the database to ensure they function properly.
3) Run performance tests to ensure data is obtained within specified performance parameters.
4) Ensure data integrity is maintained after upgrade. Contstraints, for example, should still be handled as expected.
5) Run load and/or stress test to ensure the upgraded database still handles user load and performs well under the most business-critical resource-intensive circumstances.
6) Test the Oracle client. Ideally, any issues will have been caught in the upgrade test, but it is a necessary step in the process.virgosls
- Apr 24th, 2010
1. Identify and execute the testcases which can exercise all the database operations from application.2. Execute automation scripts3. Execute performance tests4. Identify and execute testcases which update the existing records to test the backward compatibilty.
kurtz182
- Nov 30th, 2009
1) Test the upgrade itself. Do problems arise? Has anything new been introduced that needs to be accounted for? If so, make sure it works properly. 2) Run functional tests ...
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Checklist for Recovery Testing
What is Recovery Testing? In what ways we can do it? List the checklist for Recovery Testing.
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kurtz182- Member Since Nov-2009 | Jan 1st, 2010
Recovery testing is the forced failure of an application to determine whether it can recover without impaired functionality or data loss. The breadth and depth of recovery testing depends on the mission-critical nature of the application.
Some examples are:1) Take a database down while an application is sending transactions and then bring the database back up again. Verify there is no loss of data and that the application resumes in a way that users will know how to proceed.
2) While an application is running, restart the computer and validate there is no data loss and that users can proceed without negative side effects.
3) While application is receiving data over a network, unplug and reinsert the network cable to validate the application's ability to continue receiving without loss of data.
4) Restart the computer while a browser has a number of sessions running simultaneously and then determine if the browser is able to recover all of them.
kurtz182
- Jan 1st, 2010
Recovery testing is the forced failure of an application to determine whether it can recover without impaired functionality or data loss. The breadth and depth of recovery testing depends on the missi...
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Testing Approach
When you ask users to test software, what approach should they take?A. They should scan the user manual looking for situations of interest which they then test, menu option by menu option.B. They sit at the terminal, dreaming up situations randomly visiting all the features of the system to ensure they get broad coverage of the system.C. They work out what business processes are supported by the system,...
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kurtz182- Member Since Nov-2009 | Nov 13th, 2009
The only reasonable answer is D) Users cannot test software effectively.
Users typically test a system during the Beta release of a product. Though companies should not rely only on this type of testing, it is useful in uncovering defects at little cost to the company. Throughout this period, users perform their day-to-day activities and are not thinking about product quality. They rarely if ever scan the user manual looking for situations of interest to test, so the answer is not A). They generally don't dream up situations randomly to visit all of the features of the system, so the answer is also not B). They don't have access to the company's business processes, so the answer is not C).mithr17
- Nov 1st, 2011
I still cannot understand why people are willing to waste time in posting already answered questions? Can you please use the search feature in this site and save everyone's time including yours? This does really anger a lot of people FYI
srinivasulub1981
- Nov 28th, 2009
HIAns D is correctThey will not have any idea of testing the softwareCNU
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Faults Found by Users
Faults found by users in production are due toA. poor quality softwareB. poor software and poor testingC. bad luckD. insufficient time for testing
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kurtz182- Member Since Nov-2009 | Nov 13th, 2009
Faults found by users in production are due to:
The best answer is B) poor software and poor testing
A) is true, but not as complete as B)
D) may also be true, but not as complete as B)
E) is obviously false because quality has nothing to do with luck
srinivasulub1981
- Nov 19th, 2009
HII feel it's due to poor quality, here the issue may come due to poor sw, but finding the issues is the major responcibility of a tester than dev team, but there that option was not there, so i can to the option B is correct, poor software and poor testingCNU
kurtz182
- Nov 13th, 2009
Faults found by users in production are due to:The best answer is B) poor software and poor testingA) is true, but not as complete as B)D) may also be true, but not as complete as B)E) is obviously false because quality has nothing to do with luck
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Concurrency Testing
In what scenario concurrency testing is done? Give real time scenario for the same.
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kurtz182- Member Since Nov-2009 | Nov 6th, 2009
Concurrency testing is performed when there are two or more scenarios being tested on the same application at the same time. A common form of concurrency testing takes place when two users are logged into the same application and a tester wishes to determine how their activities impact one another. It is commonly employed to test web sessions and state management.
srinivasulub1981
- Nov 28th, 2009
HIThis will be comes under Multi user testing, ie testing the application by more than one user at same time...The intention is find the behaviour of application when it was using by more than one user, ie to verify the speed, performance, how data base is responding, etcCNU
kurtz182
- Nov 6th, 2009
Concurrency testing is performed when there are two or more scenarios being tested on the same application at the same time. A common form of concurrency testing takes place when two users are l...
Testing Common Interview Questions
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