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Tuesday, March 29, 2011

What are the problems/challenges you faced in your previous projects?

Sometimes the interviewer asks a question like:
"What are the problems/challenges you faced in your previous projects?"

To answer this question, you have to think of all projects you handled and prepare a list of challenges you faced and how you resolved them. If you don't prepare this list, it will be difficult to remember all points at the time of interview.

I will list down few problems that I faced in my previous projects. That will help you prepare a list for yourself.

Challenge 1

Challenge: This is the biggest challenge I faced. The Production web application connecting to the Crystal Enterprise server was always down. The client was very upset and was using the UAT web application to run Ad-hoc query in Crystal Enterprise server.

Resolution: After a long research on Crystal Enterprise server, IIS, Web application settings, application pools etc for about 3 months, I got the answer.
Another application installed in the same application Pool was causing this web application down when there was any run time error in that application. I resolved the issue by separating the Application Pools for each web applications.

Challenge 2

Challenge: I was part of a Unit Testing team in a big project. We were doing Unit Testing in VSTS (Visual Studio Team System). The challenge was to achieve the code coverage above 90% and to automate the input data for test cases above 95%.

Code coverage - To achieve code coverage above 90% is very difficult task as it is very difficult to write test cases to prodecue all type of exceptions and reach all the catch block code. We put all our innovations to produce maximum type of exceptions and managed to keep code cpoverage above 90%.

Automating Test Data - We faced difficulty in automating test data for many scenarios. We put lots of innovations to automate test data above 95% level.
i) We used SQL query to retrieve test data dynamically and it helped automating test data for many scenarios.
ii) We organised the sequence of execution of few test cases and that helped for some scenarios. Example of a sequence: Create, Edit, Delete

You can post comments about some of the challenges you faced for others to learn & benefit from you.

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