I'm helping you. I'm helping you.

A few months ago, I enlisted my 11 year old son to help me with some work around the house. After a short while, he was doing something other than what I had asked him to do.

I told him, "You're not helping me."

"But I am helping you.", he replied.

"No you're not."

"I'm helping you. I'm helping you.", he shot back. He was frustrated. He really thought he was helping me; and I was putting down his work. I was frustrated too. From my view, his helping was creating more work for me. I did not feel helped.

Then it hit me. I've heard this argument before -- from software testers.

I've seen testers, and test managers, attempt to justify their work by telling team members and stakeholders "I'm helping you. I'm helping you." We QA and tester people develop metrics and reports to help us demonstrate how helpful we are. We talk about our quality assurance and testing processes. We talk about all the test cases we develop and execute. We like to show off our test automation that spits out impressive color-coded results.

However, we still encounter unhappy team members and stakeholders. We develop adversarial relationships with developers. We have to explain ourselves to project leads that question the value of our testing. We hear people tell us we're not helping and we keep saying "I'm helping you. I'm helping you."

Maybe, just like my son, we're not giving our stakeholders what they need. Maybe we aren't really helping. So instead of shooting back the "I'm helping you." line, we can stop and listen. Find out what our stakeholders want from us. Listen and ask clarifying questions to better understand how we can help.

I'm not advocating that we just give in and do whatever we're asked without defending our positions. However, we can be willing to adjust our positions to better serve our stakeholders. (Joining an overly optimistic rush to release poor quality software usually doesn't serve them.) If there is disagreement, work to resolve it. Sometimes we may need to educate others on our areas of expertise. Yet we testers also need to respect others' roles and expertise. Listen and learn.

So, the next time you feel like screaming "I'm helping you. I'm helping you.", try to better understand how you can help before turning up your defenses.

Serve your stakeholders.

The Antonym of Testing

"... one usually encounters a definition such as, 'Testing is the process of confirming that a program is correct. It is the demonstration that errors are not present.' The main trouble with this definition is that it is totally wrong; in fact, it almost defines the antonym of testing."

- Glenford Myers,
Software Reliability: Principles & Practices, 1976

People keep telling me that testing is a validation activity -- that the purpose of testing is to validate that the software meets all the specifications, has no errors, meets performance SLAs, meets expectations of anonymous users, or some other lofty goal.

I read about testing processes designed to validate software. I use testing tools built to support validation. I listen to service companies pitch testing services to validate software. I read about testing metrics built on the assertion that software systems can be proved correct. I attend testing presentations explaining the presenters' best practices for validation.

The trouble is that we cannot prove software correct. We cannot prove the absence of bugs. We cannot test every possible state and input. We cannot evaluate every possible output. We cannot fully understand the desires of stakeholders. We cannot prove that customers will be happy. We cannot prove that a software product will solve the problems it was built to solve. If all this were possible, I suspect insurance companies would find a way to make a profit selling software quality insurance.

"If you think you can fully test a program without testing its response to every possible input, fine. Give us a list of your test cases. We can write a program that will pass all your tests but still fail spectacularly on an input you missed. If we can do this deliberately, our contention is that we or other programmers can do it accidentally."

- Cem Kaner, Jack Falk, and Hung Quoc Nguyen,
Testing Computer Software, Second Edition, 1999

Now, thirty-two years since Glenford Myers called testing to prove correctness the opposite of testing, we're surrounded by testing practices and tools based on proving correctness. The myth of proving correctness is alive and well.

Activities designed to try to prove correctness are the antonym of testing.

So if testing is not validation, what is testing? Testing is investigation; and communicating useful information about quality to decision makers.

"Testing is the process by which we explore and understand the status of the benefits and the risk associated with release of a software system."

- James Bach,
James Bach on Risk-Based Testing, STQE Magazine, Nov 1999


"Testing is done to find information. Critical decisions about the project or the product are made on the basis of that information."

- Cem Kaner, James Bach, Bret Pettichord,
Lessons Learned In Software Testing: A Context-Driven Approach, 2002


"A software tester’s job is to test software, find bugs, and report them so that they can be fixed. An effective software tester focuses on the software product itself and gathers empirical information regarding what it does and doesn’t do. This is a big job all by itself. The challenge is to provide accurate, comprehensive, and timely information, so managers can make informed decisions."

- Brett Pettichord,
Don't Become the Quality Police, StickyMinds.com, 2002

Once we admit that we cannot prove the software correct, we can refocus our efforts on finding useful quality-related information. Instead of pretending to assure quality or validate correctness, we can gather and communicate useful information. Investigate the software. Find information about threats to the quality of the systems under investigation. Communicate that information in terms that matter to stakeholders. Help managers make informed decisions.