Why is software quality assurance important?

Why is software quality assurance important?

Let’s assume, a client is willing to pay 1 million dollar for a software which multiplies 2 numbers, where there is no SQA (Software Quality Assurance).

I am developer, I have written a program which multiplies two numbers. For self satisfaction I tested my software with below two test cases:-

1. 0 x 0 = 0 (0 is expected result, I get 0 in actual result)

2. 2 x 2 = 4 (4 is expected result, I get 4 in actual result).

I am happy, oh its working and I delivered my software to the client. Now, client is also happy with a software, which is delivered early from deadline.

Now, they launched the software in the market, he has a trust on me that whatever I have delivered must be good, after all they have paid heavy price for this.

Now in real time scenario:

1. 0 x 0 = 0 (Yay, it worked. Happy Scenario, this is what it is expected)

2. 10 x 20 = 30 (What the hell, Expected result is 200, Actual result 30)

3. 2.5 x 1.5= 3 (whaaattt) (Data loss, after decimal it is truncated.)

4. 0.000000000000000001 x 2.0000000000000001 = 2 (Oh, god please kill me). (Data loss but this is not expected.)

Now a client who has paid you a 1 million dollar, do you really think he will be nice towards you for a buggy software.

· Oh, he asked for multiplication(x) but I put addition(+) sign with mistake.

· I should have also taken care of fraction numbers but I didn’t. And data lost after fraction.

But who will tell me all these things? Since, there is no software quality assurance.

As a developer I never liked QA job, because they always find bugs, faults and improvement scopes in your work.

“Nindak niyare rakhiye aangan kuti chhawaye;
Bin sabun pani bina nirmal karat subhaye.” ——— Kabir

(In short translation: Keep your critics closer, because they point out your mistakes without taking any penny. And you will have scope of improvement in you and your work.)

I tried to use very simple language to explain why Software Quality Assurance is required for any software development. Hope it helps

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