I have had a couple of interviews recently for Tester/Test Automation positions. The strange thing is that the interviewers didn’t seem too interested in my test certifications or test automation experience. Or, my experience using automated tests in Continuous Integration servers, or in higher environments in a Continuous Delivery pipeline. But, they were very interested to know if I do Java development. <:-?
It seems a strange request, since when I am testing I am usually up to my ears “testing” and writing test automation. It’s hard to imagine when I would have time to write Java, or what I would be writing it to do. So, what is this fixation all about? I keep wondering what I am missing. Maybe testers telling developers how to write more testable code or is it just more code review? There are some good automated test tools for that; they run in your CI server. A tester’s life is hard enough without going toe to toe with development at the code level. Who in management is trained to referee a cat fight?
I suspect that Kent Beck is at it again/still, I guess he is never going to figure out that 98% of the people who develop, don’t want to test for a living, and trained testers who do test automation are busy developing test automation.
Don’t get me wrong, developers can do good testing, but you have to train them to test. Testing is a discipline; it has a body of technical knowledge behind it, just like development. I used to train developers how to test. There was a market for this in regulated and safety critical industries just before the turn of the century. It took a mandate from high up to get them into the right mood, and they were almost always very skeptical in the beginning, but once they got started they found testing techniques very useful. They became very good testers for the most part, and their code quality improved greatly.
It seems to me that the real question here is about the tester’s technical competency. (As well it should be after all the off shore testing fiascoes. ) But, if you want to make sure that the tester has enough technical background, an engineering degree and two years coursework in a Masters in Computer Science is probably a better indicator. Better yet, give the candidate a test that will tell you if the candidate has enough understanding of programming techniques and the language to meet your goals. (You do know what your goals are right?)
That said, I would love to be part of this great new experiment where you, “give every developer a pet-developer-to-test-for-him.” I have been working next to developers for years, but they would not let me write any code; that would have taken me away from testing their code. So, I am most curious to see what is different this time.
Quality means a lot of things to a lot of people, just ask them and you will find out. They will tell you about all sorts of “things” that represent quality to them. The problem is that quality is not a thing, it is t he measure of a thing. Quality is a metric. Quality measures how much excellence a thing possesses.
Think about it, a “high quality” item is an item that is “excellent”. So when someone describes quality as a thing, they are describing a thing that they believe has a great deal of excellence. We have come to use the word quality and excellence interchangeably. But they are not really the same ‘things’.
I see the meaning of these terms changing over time, just look at these responses. Clearly they are in Techlish. Definition migration is a natural phenomenon in any living language, but its only a good thing if the definitions become more precise, not more subjective. I prefer the more classic meanings based on the English dictionary.
Verification is “checking” that something is what it should be. Since in the simplest form “test” means to compare an actual result to a standard (expected result) Verify is basically “test” with a positive expectation. If you don’t have a STANDARD to compare to, you can’t actually test or verify.
Validation means “to prove to be wholesome and correctly executed.” – Validation does not automatically provide the “expected result.” Validation requires proof. The proof is accomplished by providing a convincing argument. Hopefully this is an argument, like a lawyer presents in a court of law. Building a convincing case based on facts that support their assertions of proof and validity. – Unfortunately arguments can also be supported by a show of brute force and intimidation.
Verification only requires a script with expected results. An automation tool can do verification. Validation requires depth of knowledge, and a compelling argument to support the testers opinion of validity. A good tester does both verification and validation.–Compare the outcome to the expected result, AND, judge the validity of thing they are examining. V & V is not limited to requirements, or applications, or systems. It’s how we judge everything.
Is something doing what it is supposed to do? (verification) Is what it is doing wholesome and correctly executed? (validation)
Remember, you can’t Verify if there is no expected result.
You can Validate, but you must create a convincing argument to support your opinion. The most convincing arguments are based on facts and measurements; two skills every tester needs to develop. So, for our picture,
Verify: Ok, she is there on a pony in the parade. Pass!
Validate: Is this a real pony? Doesn’t a pony have 4 legs? Is she the real queen? Is she a ‘she’? etc…
Validity is a funny thing, you may know it when you see it, but how will you convince everyone else.
In 2010, we found a very old oak tree deep in the hardwood forest at Shady Grove. It is draped around the edge of an ancient hog wallow in the middle of a palmetto grove. It looks like a white oak, but has unusual smooth bark and sharp prongs on its leaves like a red oak. After lots of research we found that it is most likely an Overland Oak.
Once we knew what we were looking for, we discovered that this very old tree has children all around her, many of them also of good age.
The tree books say that Overland Oak is native to (and only exists in) a small area in California. This Oak is probably 300+ years old, and has undoubtedly been in Florida for all of those years; an entire continent separating it from its human ordained home.
While the 1600 – 1700s were a time of heavy colonization, Florida’s inland jungles and mosquito swarms were no part of that activity. And, while its possible that the native peoples planted this tree at Shady Grove, it is equally possible that the tree is simply a native.
The species list we have accumulated in the past 10 years at Shady Grove Preserve is ever growing, and contains many plants, animals, insects, and lizards that are considered “endangered”, or thought to be no more. And, what about all the species that are simply not listed anywhere?
Well, enter 2012 on a hopeful note. A new ruling has just come into effect January 1, 2012:
Classifying plants, algae and fungi can now be done in English and online.
…”Something needs to streamline the process of naming, though, he (Brian Schrire of Royal Botanic Gardens, Kew in England) says. Botanists are probably only about halfway through describing the plants on Earth, with roughly 200,000 species described. Yet only about 2,000 names get published a year at the current pace.”…
See the entire article at http://www.sciencenews.org/view/generic/id/337282/title/Botanists_et_al_freed_from_Latin%2C_paper
In the last 150 years we have cut down and bulldozed most of the forests in our country (and indeed the world) in the name of jobs, progress and private property rights. We have destroyed not only the trees, but the entire ecosystem that they support. Clearly, we didn’t even know what was in them before we wasted them.
All through my lifetime, the National Forestry Service promised that they were replanting the forests that they cut down. Well, you can’t grow a 200 year old tree in a 20 year plan. And you can’t re-grow a forest if there isn’t enough water. With global warming and all the new drought areas, forests are not likely to be coming back. Our existing established woodlands are invaluable, and they need to be nurtured and protected.
We find ‘new’ species each year at Shady Grove Preserve. But due to the difficulty of verifying, and recording, we haven’t been able to do anything with this information, except publish these little blogs. Now perhaps this will change.
I for one am glad that the price of diesel is going up and up. Perhaps it will slow the bulldozers down and down.
All the things that people think they know…
Before air conditioning, there was the pond. Before bagged food, there was natures bounty. Most folks pay a lot of money to “train” their horses to go into the water. I say, let nature take it’s course…. And a good summer is had by all.
I entered seven new plant species in the Shady Grove Preserve Species list this month. Five of them are endangered/rare Florida peas. I found them because they were blooming.
With so many new species, I and ended up overwhelmed in research and this blog almost didn’t happen. There was just too much to say. Understand, I am not writing this to discuss the fine points of species identification, but rather the amazing diversity, and adaptability of these little plants.
Here’s what happened… Early in July, lightning struck a 100+ year old hickory in the north east cornter of the preserve. When it fell, it also brought down good sized live oak, and they both landed on top of the tower road. When I went out to see how the tree removal guys were doing, cleaning up the mess, I noticed these beautiful blossoms up in the mowed part of the eastern boundary that is actually 12oth Ave. Fortunately no one drives there since my tower road is the road of choice, and because of the price of gas, I haven’t mowed there yet this season.
I returned with my camera an captured many images of these blossom covered little plants. They smell wonderful. I am reminded of iris. They also must taste great because it is clear from the holes in the blossoms that the buds get gnawed upon quite a bit. (They are probably Sweetsented Pigeonwings Pea, Clitoria fragrans.)
When I showed these pictures to my daughter, she said, “Mom we have always had these, go look up at the dressage field.” So, I did. And, there were more peas. Only these were different. Growing in the shade along the trail, only one blossom per plant, more round, not so oval, and these didn’t smell. They are beautiful none the less. (They are probably Atlantic Pigeonwings Pea , Clitoria mariana.)
I knew they were peas from the three leaves on each branch. Peas are members of the Fabaceae family. And so are a lot of other things. The adventure continues in August; I have discovered 3 more species; blooming of course.
Thank heaven I haven’t been mowing these places. I would never have seen these lovely native wild flowers. Perhaps there are some benefits to the price of gas going up. (Click on an image to see it full sized)
See more at: http://shadygrovepreserve.com
This is a Trumpet Vine blossom (Campsis radicans) at Shady Grove Preserve in Ocala Florida. This graceful, hardy vine blooms throughout the month of June in Florida. They can live over 100 years; usually they are as old as the trees that they climb.
Contrary to popular belief, these vines do not harm trees, they are an important and beneficial part of the woodland ecosystem. While it is true that trumpet vines can overwhelm a young tree, they rarely kill them. Trumpet vines live in a symbiotic, mutually beneficial relationship with the trees and the woodlands.
Unlike the damaging vines that bind and constrict the trees; choking them. The trumpet vines form a light and airy net through the tree tops. Their foliage adds shade the woodland floor, keeping it 10 – 20 degrees cooler than the sunlit fields. –Helping to hold moisture in the soil while giving squirels, birds, an assortment of reptiles and a wealth of insect life shelter and connections to the surrounding trees, –their own private habitat high above the ground.
Meanwhile, in the ground, the vine’s root system helps strengthen, and nourish the tree’s root system, making a stronger longer-lived tree. Knitting the trees into woodlands, both above and below the ground, so that than none stand alone. –Especially important in the face of hurricanes and such.
Killing these vines is harmful for the trees, the forest, and the wildlife, not to mention the loss of such proud and lusty blossoms
that make the trees bloom with color in the early summer heat,
and litter my cool and shady trails with red and orange trumpets…
Hickories, Pecans, and Walnuts are all part of the Walnut Family, Juglandaceae. They are better know for their nuts than for their blossoms. But for some, like the Pignut Hickory the real show is the opening of the buds.
For those of you who think “buds” are just little green lumps, here is a marvelous example of nature being extravagant. This young Pignut Hickory has a sensational and explosive budding ritual each spring. Some of the other Hickories bud with bright yellow petals, but this one is red and pink and a real eye catcher in the woods. From the ground, it looks like the whole tree is covered with red blossoms.
The greenish cluster at the center of this “bud” are the new leaflets emerging. Once the buds begin to open, it only takes a couple of days for the leaflets to unfurl and go to work; cleaning our air, releasing the oxygen we need to breath and locking up the carbon (that is causing global warming) for as long as the tree shall live.
And another thing… The amount of nuts that these trees produce is amazing. They can be almost 2 inches in diameter, but the actual nut meat is very small. The wildlife eat them all through the winter and well into the spring. I don’t care for them myself, they are bitter, but they make wonderful ammunition for my sling shot.
(Click on any image in the list to see it full sized)
I am an Oklawaha Blackberry. My mother was a Rose.
The resemblance is striking wouldn’t you say?
The rose family contains more that 2800 species world wide. In addition to all the ornamental trees and bushes, many/most of the fruits that we love best are also members of the Rose family; apples, cherries, peaches, almonds, and many types of berries including the blackberry.
The Spring of 2010 was a very wet spring for us at Shady Grove Preserve. In the fields and the woodlands plants and trees bloomed as we have never seen before; Some things we didn’t know could bloom at all showed us an amazing variety of fragrant color and grace. And others, like the Oklawaha, who always bloom at least a little no matter how dry it is, bloomed with a profusion and an enthusiasm that was breathtaking.
Oklawaha blackberries bloom with 5 petals in a single circle. – Except (apparently) when they are very very happy, and then they can bloom ‘double’.
In their simple celebration of the blessing of water, they give me hope and renew my belief in the power of life.
I have to admit I am in a quandry.
I can’t decide if I prefer the blackberry cooled by the night air and covered with dawns’ dew drops, fresh and tangy in my mouth and wetter than wet; waking me utterly.
Or, fat blackberry warmed by the afternoon sun and dry to the touch but bursting with juice, sweat and tart all at once in my mouth; leaving my fingers purple and me,
feeling like an empress.
Guess I will take both!