Blog

  • I am a serial hobbyist…

    So just the other day a friend of mine called me a serial hobbyist, and even though he doesn’t know me that well, he’s right. To counter this accusation I am surrendering several hobbies — at least for now…

    1. Guitar playing – I haven’t learned a new song for over 10 years. It’s just fun to play the same stuff I already know. I’m not selling my guitar or anything; but I just won’t claim it as an official hobby.
    2. Photography – Yeah, I’m one of those guys who actually had his own darkroom for doing black and white photography. Those were cool times. I still have all the equipment, and I’ve been packing it around for 10 years now. I still like taking pictures, but I just do the point-and-shoot thing with a little Canon Elph. You tend to take less artsy stuff when you have 3 kids. So I’ll enjoy all the great kiddie shots, but photography is no longer a true hobby.
    3. Baseball card collecting – So I have 13,000 cards and I really don’t know what to do with them at this point. This is an easy hobby to give up, because I haven’t really done much with it for the last 15 years. Anyone want a ton of cool cards? You can have them as long as you promise to enjoy them.

    There’s plenty more where that came from, but I want to shed my hobbies a few at a time. And don’t feel bad for me. There’s plenty more where that came from. This year I plan to add paintballing to my hobby collection. Remember, I am a serial hobbyist.

  • Balancing Exploratory Testing With Scripted Testing

    This is the best explanation I have ever seen that deals with the balance testers must strike between scripted and exploratory testing:

    “To the extent that the next test we do is influenced by the result of the last test we did, we are doing exploratory testing. We become more exploratory when we can’t tell what tests should be run, in advance of the test cycle, or when we haven’t yet had the opportunity to create those tests. If we are running scripted tests, and new information comes to light that suggests a better test strategy, we may switch to an exploratory mode (as in the case of discovering a new failure that requires investigation). Conversely, we take a more scripted approach when there is little uncertainty about how we want to test, new tests are relatively unimportant, the need for efficiency and reliability in executing those tests is worth the effort of scripting, and when we are prepared to pay the cost of documenting and maintaining tests. The results of exploratory testing aren’t necessarily radically different than those of scripted testing, and the two approaches to testing are fully compatible.”

    This makes sense to me. The messing around I do as I am figuring out how new things work and how I should test them is really a form of exploratory testing. And this may be the only testing that is necessary for very small applications. But with a bigger app like eduCommons it is clearly impossible to keep everything organized without scripted (preferably automated) tests.

  • Testability

    Grig Gheorghiu presented at PyCon and then blogged about what makes software more testable? Here it is, shamelessly borrowed from his blog:

    I mentioned a list put together by Michael Bolton, and summarized/enhanced by Adam Goucher in this blog post. Recommended reading, both for developers who want to add testing hooks into their software, and for testers who want to know what to ask for from developers so that their life gets easier (and if you’re one of the unfortunate souls who have to deal with Java or .NET, this blog post by Roy Osherove talks about testability and pure OOP.)

    Although our tutorial was focused on tools and techniques for implementing test automation, we also mentioned that you will never be able to get rid of manual testing. Even though the Google testing team says that ‘Life is too short for manual testing’ (and I couldn’t agree more with them), they hasten to qualify this slogan by adding that automated testing frees you up to do more meaningful exploratory testing.

    My experience as a tester shows that the nastiest bugs are often discovered by manual testing. But when you do discover them manually, the best strategy is to write automated tests for them, so that you’ll check your application in that particular area from that moment on, via an automated test suite which runs in your continuous integration system.

    You do have an automated test suite, right? And it does run periodically (daily or upon on every check-in) in a continuous integration system, right? And you have everything set up so that you’re notified by email or RSS feeds when something fails, right? And you fix failures quickly so that everything turns back to green, because you know that too much red, too often, leads to broken windows and bit rot, right?

    If you answered No to any of these questions, then you are not testing your application, period (but you already knew this if you took our tutorial — it was on the last slide ๐Ÿ™‚

  • My first eBusiness

    I put together a little eBusiness with my wife back in 2002. AskADate.com was supposed to be a place to order themed gift packages for a loved one. If I remember right, the only person who ever ordered from the site was my mom. (Thanks, mom!) Anyway, it was a great excuse to buy a digital camera. In business terms it was a total loss, but I actually learned quite a bit about eCommerce, and I passed that on to my Computer Science students. If you count the advertising we bought through Google AdWords, I think the whole thing cost me about $250 ($200 of that was the digital camera). Even though the site is gone, it’s great to be able to see it through Archive.org at http://web.archive.org/web/20030210140323/ask-a-date.com/.

    Thanks for the memories, WayBack Machine!

  • Vision of an Open Library

    “I don’t know what it will be like to have books from our libraries injected into our culture again, but I’d like to see it.” –Brewster Kahle

    http://www.openlibrary.org/details/openlibrary

    I realize this isn’t new news, but it’s new to me. Here are the parts of the 2005 Open Library/Open Content Alliance announcement from Archive.org that really hit home:

    3 to 4 billion of the 12 billion libraries spend every year goes to publishing.

    Other projects: International Childres’s Digital Library, Internet Archive Bookmobile (dollar a book!). BookShare will use this content for access for the blind. $100 laptop will include books from this project onto their laptops. Open Content Alliance will create protocols and formats.