October 2009
Beginner
350 pages
11h 10m
English
Content preview from Beautiful TestingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
What Beauty Is External?
Consider a world-class distance athlete, such as an Olympic marathon runner or an Ironman triathlete. Such athletes have a rugged external beauty, a form-fits-function appearance. They are lean. They have extremely well-toned and well-defined—but usually not bulky—muscles. During their competitions, they show a determined face, and they bear the pain of the long event with grace. We can measure their effectiveness, efficiency, and elegance by their final times, their race standings, and their sportsmanlike behavior—win or lose.
A good test team also displays an external beauty, similar to a long-distance athlete. After all, testing is much more like a marathon than like a sprint!
Suppose that, by working with your testing stakeholders, you identify a number of objectives for testing. One includes a typical objective, that of finding bugs, especially important bugs. How might you determine your externally visible effectiveness and efficiency for this objective? Consider the following questions:
What percentage of the bugs delivered to us do we find?
Do we find a higher percentage of the important bugs?
What is our cost per bug found and fixed during testing compared to the cost of a failure in production?
For each of these questions, devise a metric. Start with the percentage of bugs that you find. You can measure this with the defect detection percentage (DDP), shown in Equation 2-1. If your testing is the last quality assurance activity prior to user acceptance ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.