Apr 27, 2012

Top 5 Common Myths in Software Testing

I just realized that it has been little over 5 years since I wrote about five software testing myths and it is unfortunate that I still see, hear and find people arguing about some of those myths after half a decade. While there are literally tens of those myths floating around, here is my take on five of the most common testing myths that I keep hearing these days.

Be it the blogoshpere, the so called expert columns on various sites, social media discussions, tech industry journals, or casual after-lunch office gossips, these myths are as easy to to be spotted as easy it is to find bugs in a half-baked software developed by a novice programmer.
So without further ado, here goes the top 5 software testing misconceptions and myths (in no particular order) that are plaguing our modern day testers these days:

1.  Software Testing is a Mundane, No-Brainer Job


Ohh, yeah? On second thoughts, perhaps there is some element of truth to that statement. Testing can indeed be boring and feel like a mundane monotonous task if YOU ARE DOING IT WRONG! I've seen people jump to this conclusion (that testing is boring) because they see (and believe) testing as 'repeatedly' doing same/similar tasks over and over again.

Going by that logic, programming, web designing, analysis, accounting, banking and any day-to-day vital activities like eating, sleeping etc can also be considered boring if you just look at the 'repetition' part. Moreover, do you stop eating and sleeping because it is a repetitive task that you are needed to do daily? Or do you change your food menu and sleeping habits when you feel bored?

But if you are really a good tester, then you would probably look at testing as an information gathering activity done with an intent of exploring and discovering answers [NOT just flaws or bugs in the software] to questions that nobody had asked before. To achieve so, you would need to study, explore, observe, analyze, use the software to be able to evaluate it. Does that sound boring to you?

If you ever get bored of testing something, don't blame your job. Rather blame yourself and CHANGE the way you are testing, thinking and devising your test ideas and before you know it testing the same software would start feeling so much of fun, once again.

2. A Tester Should Be Able To Test Everything


Yes, as a tester I can of course test everything provided as a project stakeholder you can provide me with indefinite supply of resources, infrastructure, budget, time and what-not!

It is foolish to expect that a tester (or a testing team) can test each and every test scenario, theoretically possible within their given time-frame and with the supplied resources. While a good tester would generate critical test scenarios and prioritize them and test, it is impractical to hypothesize that it is possible to test ALL those scenarios. Wouldn't that be same as expecting 'testing can deliver a 100% bug free product'?

The reasons why this is not possible can be many -- lack of enough time, lack of available infrastructure to test something, vastness of all permutation and combination that can exist and so forth. It is an inherent quality of software testing that it can show that bugs exist, but not that bugs doesn't exist.

Lets take a simple example. We all know that life critical systems like instruments used in medical facilities, airplanes, space ships etc go through a stringent set of testing procedure to ensure nothing goes wrong when they are operational. However, can the tester(s) testing a flight actually predict and test considering the actual air pressure, altitude, number of passengers and crews, total load on the flight, wind speed, temperature etc, on any particular day? Can their simulator simulate any random day's environmental and other variables that the flight will have to take when in production?


3. A Tester's Job is to Find Bugs


I don't blame you if you don't see how this is a myth or misconception -- many don't. It is easy, especial for someone who has just recently started her career as a software tester, to get confused about her responsibilities as a tester. And many often fall into the trap of believing that finding lot of bugs in the software is their prime goal.

I admit that finding bugs in the software is an important part of what a tester should do. But the story doesn't end there. Along with just finding bugs, testers do analyze the requirements, review the product architecture, provide ideas to make the product more user-friendly, validate the help documents and a lot of other things.


4. Testers Add No Value to The Software


People who conceive this myth often are made to believe that a tester’s role is strictly limited and adds no value to the product.

On the contrary, a skilled tester is often an expert of the system (product) under test. Unlike the programmers who often spend most of their time working on a very specific area, function or component of the application, the tester analyzes and understands how the entire system works from an end-to-end standpoint. Testers get a better chance to demonstrate their understanding of the product in  a way that adds value to to the product.


5. Test Automation Will Eliminate Human Testers:


This is perhaps the most outrageous prediction that many so called self-proclaimed test automation gurus are making at the moment. What is even more insane is the fact that there are actually testers who are believing it!

Can test automation tools replace human testers? I'd say a big NO. Why this is not going to happen ever, is simple. I remember not so long ago when  the concept of Computer-aided software engineering (CASE) emerged and suddenly people started talking how computers would start writing codes and in turn can make human programmers obsolete. But whether that actually happened is a matter of everyone's guess today.

Similarly test automation is never going to replace human testers, UNLESS, of course, humanoid auto-bots take over our planet one day. Until that (judgment day) arrives, we human testers will never be expendable for a very simple reason. We have something that the test automation tools do not have; it is 'emotions'. And since the users of the software we test are almost always be humans, it is the human testers who are going to have this advantage of testing it better than any automation tools.

For instance, a tool can tell me if the fonts, color and layout of a screen is as per the test script but it can never tell me if a human being is going to find that screen pleasant enough to use.

Having said that, test automation tools are not necessarily bad for testing. They can actually be useful for testing certain aspects of testing (like large calculations, testing involving performance and load, repeated regression tests etc) that would otherwise be very time-consuming and hectic for a normal human tester. Hence, under certain contexts, automation tools can act as supplementary tools to aid human testers; NOT to replace them.



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20 Comments:

Calkelpdiver on April 27, 2012 at 7:52 AM said...

I totally agree with what you said in #5, and I am an Automation guy. The people (inside and outside of testing) who both sell it this way and bite on the hook are causing problems for the rest of us legitimate automation people.

I've been dealing with this for 20 years, and this ugly monsters head just keeps rearing up. In situations like this I just use my favorite saying "It's Automation, Not Automagic!", and after the dear in headlights look fades people do tend to get a clue.

Constant vigilence on our part is what it takes to make sure someone doesnt' write a check with their mouths that our bodies can't cash.

Jim


Z1 Bhubaneswar on May 3, 2012 at 5:32 AM said...

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Anonymous said...

What the h*** are you guys talking about. I am a software tester. And I find this boring as $**t. There is absolutely no intellectual justification for this job. Typing pages after pages of excel sheets creating "test cases" for 20 year old banking software which is coded in SQL and fails while performing multiplication. By the way, i was awarded as a top performer by my company this year. So you can take it from me. Don't join this field unless you couldn't find anything better to do. And I will f***ing murder anyone who says that old bullS**t line :- "If you hate it, why don't you quit?" I'll tell you why, I didn't work hard enough to find better work. A not of thanks to our developers though. It's thanks to their profound incompetence and the embarrassing software they deliver that I have a job.


ccie bootcamp on May 22, 2012 at 4:05 AM said...

Tips for becoming a dedicated Tester:
Write everyday
Watch yourself think everyday
Question something about how you work everyday
Explain testing everyday


Software Testing on June 5, 2012 at 11:30 PM said...

Software testing is one of the most important steps of Software Engineering. There are some softare testing steps you need to follow to meet with the standards and certainly you need perfect training as well.


ccna service provider on June 18, 2012 at 4:13 AM said...
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Kind of Technology on July 10, 2012 at 10:56 AM said...
This comment has been removed by a blog administrator.

James said...
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Software Testing on August 7, 2012 at 10:30 PM said...

You have provided very nice information. these are very important in testing field...


Anshu Sharma on August 26, 2012 at 9:58 PM said...

There are lots of myths in every job or field of life but success depends upon crossing all barriers and searching way towards success.

360logica


Meheer Agarwal on August 27, 2012 at 1:21 AM said...

Thanks for sharing the Top 5 Common Myths in Software Testing tips.


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Software Testing on August 31, 2012 at 2:35 AM said...

Nice information, thanks for sharing


Software Testing Company on September 9, 2012 at 10:27 PM said...

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Software Testing Company on September 13, 2012 at 3:02 AM said...

The need of software testing is to find if the software:
• Stands on all the requirements that guided the development and design of the software.
• Works as it is supposed to be working.
• Can be put to use with the same characteristics.
• Meets up all the needs of the stakeholders.

Thats it.


Cathy on September 14, 2012 at 2:14 AM said...

There's yet another myth, which you missed. That myth is, software testing in terms of qualitative parameters is an afterthought. It is not. In fact, this is a continuing process.


360logica on September 20, 2012 at 3:01 AM said...

All myths are right. I really agree from all these myths. In short it can say that software tester has to test everything in every given project as an advance thinker.


Anonymous said...

Good Post.


sudeep theja seo on November 25, 2012 at 1:34 AM said...

Its very valuable information about Software Testing.


Kannan on February 27, 2013 at 11:26 PM said...

Its very valuable information. I became very passionate about testing after read through your blogs. Really it was very useful to me to upgrade myself on testing side. I could learn a lot from your blog. Because it was an accident that i joined as a Software tester. but lately i was lured by it and decided to move on it. But at the time i started learning about the software testing and finally got this blog. Its interesting and helpful for the fresher to gain more knowledge and for experts it will be useful to recollect the things on testing. Keep Posting


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