Author Archive

Competitor Charisma Comparison Rikard Edgren Comments Off on Competitor Charisma Comparison

In many cases, it is worthwhile to take a look at how your competitors do similar things. Among competitors I include products you’re trying to beat, in-house solutions (e.g. handmade Excel sheets) and analogue solutions, solving the problem without computer products. Charisma is difficult to test, but competitor comparison is one way to go. You […]

Trilogy of a Skilled Eye Rikard Edgren No Comments

I have completed a trilogy on the theme The Eye of a Skilled Software Tester edition 1: Lightning Talk, Danish Alliance, EuroSTAR 2010 edition 2: Article, The Testing Planet, March 2011 – Issue 4 edition 3: Presentation, Scandinavian Developer Conference, april 2011 Some things have changed over time; in the first two I didn’t focus […]

A Factory of Skilled Testers Rikard Edgren 11 Comments

I do not see myself as a member of any of the Schools of Testing, and I have ethical problems with labelling other people than yourself. However, I see the schools as a fruitful tool for enhancing your understanding of views on testing. So please join me in the following thought experiment. The following is […]

Finding low-hanging fruit Rikard Edgren 2 Comments

Now and then you hear that developers should implement better support for testability, so testers can work more efficient. This is all well, but what about the opposite; how can testers make developers go faster? System testers have system (and a lot of other) knowledge, and we can see if the product turned out really […]

Set All Testers Free! Rikard Edgren 2 Comments

I have entered EuroSTAR’s VideoSTAR competition for 2011, main reason might be that I want more people to see the excellent introduction movie Mårten and Henrik made for me a couple of years ago. My title is “Set All Testers Free!”, and I can’t say I have the details set for a talk, but it […]

Lightweight Reliability Testing Rikard Edgren No Comments

The big drawback and big advantage with reliability testing is that it is easiest and most effective to perform together with other testing. A separate automated reliability regression test suite could cost an awful lot to implement, but reliability in your spine when performing any type of manual test, together with deviations, is cheap, interesting, […]

Background Complexity and Do One More Thing Heuristics Rikard Edgren 5 Comments

I spend a lot of time testing new features for the next release. I actively try to not test the features in isolation, to not use the easiest data and environment. One example of this is that I often use “documents” that are more complex than necessary, that includes elements and strange things that aren’t […]

A symptomatic ISTQB definition Rikard Edgren 12 Comments

There are some discussions about current certification schemes, but there is not so much attacks and defense of the actual content. This is from ISTQB Glossary 2.1: black box test design technique: Procedure to derive and/or select test cases based on an analysis of the specification, either functional or non-functional, of a component or system […]

My First Ambitious Test Project Rikard Edgren 3 Comments

We all test as children; we are curious and want to find things out, before we are one year old we want to break things, and after three we ask “What If” questions. My first ambitious testing journey came many years later. Still a naive teenager, I started studying Philosophy at the university. It was […]

fast and frugal tree for product importance Rikard Edgren 2 Comments

Software testing is difficult because there are so many possibilities; not only all functions and their interactions and attributes, but also possbible users’ data, needs, environments and feelings. Good software testing need to deliberately sample, and understand what is important. This understanding that evolves over time give testers an intuition about which tests to run, […]