Posts tagged test driven development

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Sep07
2011 Leave a Comment

Written by Mike Caspar

Keppra online without prescription, Recently, I was helping a friend of mine introduce OpenAgile into their environment. Keppra cheap drug, They are a software development house with some local and some overseas developers. I am occasionally following up with my friend to see how they are doing, keppra pills. Order keppra in us, Their development has been going well since adopting Agile practices with the exception of a recurring problem with "returning bugs".

A bug will be discovered, order keppra overnight delivery, Find keppra online, fixed, and then several weeks later will show up again after some other modifications, keppra without prescription. This is a sure sign that Test Driven Development is not happening, keppra online without prescription. Keppra for sale, Consider the following:

There is a master data entry screen called "Shipment Entry". The first field on the form has a "Shipper" field that allows the entry of a Shipper Code.

If you press CTRL-N, cheap keppra on internet, Keppra overnight shipping, you Should get a sorted list of Company Names ordered by CompanyName, paged 20 at a time, keppra generic, Cheap keppra online, with a smaller selection if some of the characters of the company name have been filled out. The resulting list should appear within 3 seconds.

Today you downloaded the code, discount keppra without prescription, Discount keppra no rx, recompiled and find that the drop down does not sort anymore.

You know that you have fixed this before.

Introduce the Test Driven Development Mindset.

Instead of opening a ticket, sending an email, keppra, Cheap keppra from canada, complaining or whatever your process is, consider trying the following and introducing something like this into your source / version control.

Shipment Entry Screen Tests
Shipper	Field is Empty, buy cheapest keppra on line, Buy keppra once daily, CTRL-N pressed	List Appears, paged 20 at a time, find no rx keppra, Keppra sale, sorted Alphabetically by Company Name within 3 seconds
Shipper	Field has "ABC", CTRL-N pressed	List Appears (filtered to show all companies containing "ABC" in the company name), buy keppra low price, Cheap keppra from uk, paged 20 at a time, sorted Alphabetically by Company Name within 3 seconds
Shipper	Field has an invalid entry "INVALID", buy keppra pills, Cheap keppra without prescription, CTRL-N pressed	Within 3 seconds, a pop-up appears indicating "NO COMPANY FOUND", buy cheap keppra online, Keppra rx, the shipper field is blanked and the cursor is returned to that location. The popup disappears.

If any developer works on that screen, keppra malaysia, Buy discount keppra online, before checking in, they need to do all the tests on the SHIPMENT ENTRY TESTS document to ensure they have not broken anything.Don't get me wrong, keppra no online prescription. Keppra online without prescription, The idea is not to document the entire screen up front. Buy keppra without prescription, Try to avoid designing the ENTIRE UI up front in this way. That has it's own non-agile problems, buy keppra no prescription required. Approved keppra pharmacy, This is just an easy way to introduce future changes using a different mindset.In my example above, there is a field called "Mode of Transport", buy keppra generic. Find keppra without prescription, It currently shows a list of numbers which internal employees "KNOW" from years of experience with the application. When that number is selected, it gets converted into something like "MAIL", "COURIER", when it is printed on the final document, keppra online without prescription. Your team has agreed to do work to have it show the appropriate labels in a drop down on the screen.Traditionally (non-test mindset), compare keppra prices online, Keppra online without prescription, you would send out an email or open up an issue with a request for this change. Then, order cheap keppra, Buy keppra cheap, the cycle will continue again. As time goes by, buy no rx keppra, Keppra canada, you will always need to re-check this is working properly.

Try something like this instead:

When you have finished your planning and have decided this "story" or "feature" will be introduced to this cycle or Sprint, cheapest generic keppra online, simply modify this document as follows;

Shipment Entry Screen Tests
Shipper	Field is Empty, CTRL-N pressed	List Appears, paged 20 at a time, sorted Alphabetically by Company Name within 3 seconds
Shipper	Field has "ABC", CTRL-N pressed	List Appears (filtered to show all companies containing "ABC" in the company name), paged 20 at a time, sorted Alphabetically by Company Name within 3 seconds
Shipper	Field has an invalid entry "INVALID", CTRL-N pressed	Within 3 seconds, a pop-up appears indicating "NO COMPANY FOUND", the shipper field is blanked and the cursor is returned to that location. The popup disappears.
Mode of Transport	Entry into Field	Keppra online without prescription, Within 1 second, when entering this field, a drop-down list appears show full descriptions, sorted alphabetically by Mode of Transport.

Granted, the tests will eventually become cumbersome. However, please remember that someone will eventually be testing these screens and find these bugs in a never ending circle. My friend found that every morning they were having to go through all the screens to see what "new things" were broken.

Why not just try to get it right during your Cycle or Sprint .

In the above example, as soon as someone takes on this task, they will have a failing test (Red), they will do what they need to do to get the test to pass (Green), and then will adjust the code to be efficient (Re-factor).

Although Test Driven Development is better done at other places in the code, this is a great way to introduce the "Mindset" into your team, keppra online without prescription.

Someone will eventually say "This is getting to be a hassle. Can we automate it somehow?", which as an Agile person is exactly the words you eventually want to hear.

Maybe now, you can start to introduce it at the Unit Test, or Functional Test or whatever level is appropriate to your organization. There are some more formal ways of doing TDD such as Extreme Programming (XP).

The important thing is that your company will have shifted to a Test Driven Mindset.

The quality of your product will increase and stay that way and the need to go back and fix old bugs in a never ending cycle can soon be a thing of the past.

OpenAgile

Scrum

Extreme Programming (XP)

Posted in How-To Apply Agile, OpenAgile, Scrum, XP and Lean, Theory of Agile, Uncategorized

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Jan02
2009 Leave a Comment

Written by Christian Gruber

Isráfíl Consulting Buy bactroban without prescription, is finally prepared for the first series of its Agile Software Engineering Practices training courses. Bactroban cheap price, This series is offered in partnership with Berteig Consulting who are graciously hosting the registration process. Their team has also helped greatly in shaping the presentation style and structure of the course, bactroban online stores. Bactroban no online prescription, The initial run will be in Ottawa, Toronto (Markham), order bactroban from canada, Order bactroban no prescription, and Kitchener/Waterloo.

Topics covered will include Test Driven Development (TDD), get bactroban, Cheap bactroban on internet, testability, supportive infrastructure such as build and continuous integration, drug bactroban, Low price bactroban, team metrics, incremental design and evolutionary architecture, buy bactroban from india, Canadian pharmacy bactroban, dependency injection, and so much more, lowest price bactroban. (This course won't present the planning side of XP, but covers many other aspects common to XP projects) It makes a great complement for training in Agile Processes such as XP, Scrum, or OpenAgile, buy bactroban without prescription. Cheap bactroban online, The overview slide presentation is available for free download from the Isráfíl web site.

The courses are scheduled for:

2009-02-05: 2 Day Agile Software ENGINEERING Practices Training - Kichener/Waterloo, Ontario (15 Spots)

2009-02-12: 2 Day Agile Software ENGINEERING Practices Training - Markham/Toronto, order bactroban from us, Bactroban cost, Ontario (15 Spots)

2009-02-19: 2 Day Agile Software ENGINEERING Practices Training - Ottawa, Ontario (15 Spots)

The course is $1250 CAD per student, purchase bactroban without prescription, Buy generic bactroban online, and participants receive a transferrable discount of $100 CAD for other training with Berteig Consulting as a part of our ongoing partnership. I initially prototyped this course in Ottawa this December, bactroban cheap, Compare bactroban prices, and am very excited to see this through in several locales. Class size is limited to 15, online pharmacy bactroban, Purchase bactroban no rx, so we can keep the instruction style more involved. The above schedules are linked to Berteig Consulting's course system and have registration links at the bottom of the description, find bactroban online. Find discount bactroban, Locations are TBD, but will be updated at the above links as soon as they're finalized.

A further series is planned for several US cities in March, bactroban generic, Bactroban online review, and we'll be sure to announce them as well.

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Posted in Agile Engineering - Tagged agile, christian edward gruber, course, design, development, extreme programming, implementation, incremental, infrastructure, Israfil, kitchener-waterloo, Metrics, ottawa, practices, productivity, quality, software, testability, toronto, training

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Nov04
2008 5 Comments

Written by Christian Gruber

I was vaguely annoyed to see this blog article Buy protonix without prescription, featured in JavaLobby's recent mailout. Not because Kevin Pang doesn't make some good points about the limits of code coverage, Protonix online sale, but because his title is needlessly controversial. And, because JavaLobby is engaging in some agile-baiting by publishing it without some editorial restraint.

In asking the question, protonix online cheap, "Is code coverage all that useful, Buy protonix pills, " he asserts at the beginning of his article that Test Driven Development (TDD) proponents "often tend to push code coverage as a useful metric for gauging how well tested an application is." This statement is true, but the remainder of the blog post takes apart code coverage as a valid "one true metric," a claim that TDD proponents don't make, order protonix in canada, except in Kevin's interpretation.

He further asserts that "100% code coverage has long been the ultimate goal of testing fanatics." This isn't true. Protonix buy drug, High code coverage is a desired attribute of a well tested system, but the goal is to have a fully and sufficiently tested system. Code coverage is indicative, purchase protonix no rx, but not proof, Online pharmacy protonix, of a well-tested system. How do I mean that, buy protonix without prescription. Any system whose authors have taken the time to sufficiently test it such that it gets > 95% code coverage is likely (in my experience) thinking through how to test their system in order to fully express its happy paths, edge cases, order protonix no prescription, etc. Buy protonix on line, However, the code coverage here is a symptom, not a cause, get protonix, of a well-tested system. Protonix no online prescription, And the metric can be gamed. Actually, when imposed as a management quality criterion, real protonix without prescription, it usually is gamed. Buy protonix without prescription, Good metrics should confirm a result obtained by other means, or provide leading indicators. Order cheap protonix, Few numeric measurements are subtle enough to really drive system development.

Having said that, I have used code-coverage in this way, but in context, buy protonix in us, as I'll mention later in this post.

Kevin provides example code similar to the following:

String foo(boolean condition) {    if (condition)        return "true";    else        return "false";}

... Order protonix in us, and talks about how if the unit tests are only testing the true path, then this is only working on 50% coverage. Good so far, buy protonix us. But then he goes on to express that "code coverage only tells us what was executed by our unit tests, Protonix overnight shipping, not what executed correctly." He is carefully telling us that a unit test executing a line doesn't guarantee that the line is working as intended. Um.., buy protonix without prescription. that's obvious. And if the tests didn't pass correctly, protonix cost, then the line should not be considered covered. Buy protonix cheap, It seems there are some unclear assumptions on how testing needs to work, so let me get some assertions out of the way...

Code coverage is only meaningful in the context of well-written tests. It doesn't save you from crappy tests.

Code coverage should only be measured on a line/branch if the covering tests are passing.

Code coverage suggests insufficiency, buying generic protonix, but doesn't guarantee sufficiency.

Test-driven code will likely have the symptom of nearly perfect coverage.

Test-driven code will be sufficiently tested, Find protonix, because the author wrote all the tests that form, in full, the requirements/spec of that code.

Perfectly covered code will not necessarily be sufficiently tested.

What I'm driving at is that Kevin is arguing against something entirely different than that which TDD proponents argue, low cost protonix. Buy protonix without prescription, He's arguing against a common misunderstanding of how TDD works. On point 1 he and I are in agreement. Protonix free sample, Many of his commentators mention #3 (and he states it in various ways himself). His description of what code coverage doesn't give you is absurd when you take #2 into account (we assume that a line of covered code is only covered if the covering test is passing). But most importantly - "TDD proponents" would, discount protonix no rx, in my experience, Protonix from canada, find this whole line of explanation rather irrelevant, as it is an argument against code-coverage as a single metric for code quality, and they would attempt to achieve code quality through thoroughness of testing by driving the development through tests, find cheap protonix online. TDD is a design methodology, not a testing methodology, buy protonix without prescription. You just get tests as side-effect artifacts of the approach. Protonix india, Useful in their own right. Sure, but it's only sort of the point, protonix pharmacy online. It isn't just writing the tests-first.

In other words - TDD implies high or perfect coverage. But the inverse is not necessarily true.

Buy protonix without prescription, How do you achieve thoroughness by driving your development with tests. Find discount protonix, You imagine the functionality you need next (your next increment of useful change), and you write or modify your tests to "require" the new piece of functionality. They you write it, find protonix without prescription, then you go green. Protonix australia, Code coverage doesn't enter into it, because you should have near perfect coverage at all times by implication, because every new piece of functionality you develop is preceded by tests which test its main paths and error states, cheap protonix in usa, upper and lower bounds, Protonix pharmacy, etc. Code coverage in this model is a great way to notice that you screwed up and missed something, but nothing else.

So, drug protonix online purchase, is code-coverage useful. Heck yeah, buy protonix without prescription. Protonix online review, I've used coverage to discover lots of waste in my system. I've removed whole sets of APIs that were "just in case I need them" APIs, because they become rote (lots of accessors/mutators that are not called in normal operations), buy protonix low price. Is code coverage the only way I would find them. Compare protonix prices, No. Buy protonix without prescription, If I'm dealing with a system that wasn't driven with tests, or was poorly tested in general, I may use coverage as a quick health meter, but probably not. Going from zero to 90% on legacy code is likely to be less valuable than just re-writing whole subsystems using TDD... and often more expensive.

Regardless, buy protonix online australia, while Kevin is formally asking "is code coverage useful?" he's really asking (rhetorically) is it reasonable to worship code coverage as the primary metric. Buy protonix no prescription required, But if no one's asserting the positive, why is he questioning it. He may be dealing with a lot of people with misunderstandings of how TDD works, buy protonix overnight delivery. He could be dealing with metrics bigots, buy protonix without prescription. He could be dealing with management-imposed-metrics initiatives which often fail. It might be a pet peeve or he's annoyed with TDD and this is a great way to do some agile-baiting of his own. I don't know him, so I can't say. His comments seem reasonable, so I assume no ill intent. But the answer to his rhetorical question is "yes, but in context." Not surprising, since most rhetorically asked questions are answerable in this fashion. Hopefully it's a bit clearer where it's useful (and where/how) it's not.

(This article is a cross-post from "Geek in a Suit")

Posted in Uncategorized - Tagged agile, blog, christian edward gruber, design, development, extreme programming, Israfil, Metrics

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Aug02
2008 5 Comments

Written by Christian Gruber

Buy zofran without prescription, This post is a little geeky and technical and product-related for AgileAdvice, and is a shameless self-promotion. Zofran online cheap, Nevertheless, since testability, cheap generic zofran, Cheap zofran from usa, test-driven-development, and incremental design are non-exclusive sub-topics of Agile, real zofran without prescription, Zofran cost, I though I'd report this here anyway.

Many developers use the Dependency Injection and Inversion of Control (IoC) patterns through such IoC containers as Spring, Hivemind, buy cheap zofran, Buy zofran online cheap, Picocontainer, and others, zofran pill. Cheapest zofran online, They have all sorts of benefits to testability, flexibility, zofran rx, Zofran online stores, etc. that I won't repeat here, get zofran, Buy zofran online australia, but can be read about here, here, zofran canada, Price of zofran, and here. A great summary of the history of "IoC" can be found here, zofran tablet. J2ME developers, however, especially those on limited devices that use the CLDC configuration of J2ME, cannot use the substantial number of IoC/DI containers out there, because they nearly all rely on reflection, buy zofran without prescription. Buy zofran low price, These also often make use of APIs not present in the CLDC - APIs which could not easily be added. Lastly there's a tendency among developers of "embedded software" to be very suspicious of complexity.

In working out some examples of DI as part of a testability workshop at one of my clients, best price zofran, Purchase zofran, I whipped up a quick DI container, and being the freak that I am, zofran india, Order zofran without prescription, hardened it until it was suitable for production, because I hate half-finished products, zofran overnight shipping. Find zofran online, So allow me to introduce the Israfil Micro Container. (That is, cost of zofran, Zofran side effects, the Container from the Israfil Micro project). Buy zofran without prescription, As I mention in the docs, "FemtoContainer" just was too ridiculous, and this container is smaller than pico-container. The project is BSD licensed, zofran uk, Zofran order, and hosted on googlecode, so source is freely available and there's an issue/feature tracker, cheap zofran no rx, Zofran from india, yadda yadda.

Essentially I believe that people working on cellphones and set-top boxes shouldn't be constrained out of some basic software design approaches - you just have to bend the design approach to fit the environment. So hopefully this is of use to more than one of my clients, zofran overnight. Zofran purchase, It currently supports an auto-wiring registration, delayed object creation (until first need), zofran buy drug, Discount zofran without prescription, and forthcoming are some basic lifecycle support, and a few other nicities, zofran bangkok. Buying zofran, It does not use reflection (you use a little adapter for object creation instead), and performs quicker than pico-container, zofran medication. Low, low overhead, buy zofran without prescription. Buy no rx zofran, It's also less than 10 classes and interfaces (including the two classes in the util project). It's built with Maven2, cheap zofran without prescription, Compare zofran prices, so you can use it in any Maven2-built project with ease, but of course you can always also just download the jar (and the required util jar too), cheapest generic zofran. Enjoy...

P.S. There are a few other bits on googlecode that I'm working on in the micro-zone. Some minimalist backports of some of java.lang.concurrency (just the locks), as well as some of the java.util.Collections stuff. Not finished, but also part of the googlecode project.

Posted in Agile Engineering, Announcements - Tagged agile, Announcements, architecture, christian edward gruber, design, embedded, incremental, isrá, Israfil, java, patterns, quality, software, testability, tool, tools, useful tools

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May14
2008 Leave a Comment

Written by Christian Gruber

This was actually cribbed from a Bruce Schneier blog post about security...

Buy amikacin without prescription, Security engineers see the world differently than other engineers. Buy amikacin pills, Instead of focusing on how systems work, they focus on how systems fail, buy amikacin lowest price, Online pharmacy amikacin, how they can be made to fail, and how to prevent--or protect against--those failures, buy cheapest amikacin. Cheap amikacin tablet, Most software vulnerabilities don't ever appear in normal operations, only when an attacker deliberately exploits them, no rx amikacin. Amikacin internet, So security engineers need to think like attackers.People without the mindset sometimes think they can design security products, but they can't, buy generic amikacin. Cost amikacin, And you see the results all over society--in snake-oil cryptography, software, amikacin pill, Buy cheapest amikacin online, Internet protocols, voting machines, amikacin information, Cheap amikacin no prescription, and fare card and other payment systems. Many of these systems had someone in charge of "security" on their teams, but it wasn't someone who thought like an attacker.Â Â

There's an interesting parallel between this statement and how most software quality is handled, buy amikacin without prescription. Quality and Security are similar, order amikacin from canada. Buy cheap amikacin online, In fact, I see security as a very specific subset of quality-mindedness, order amikacin. Sale amikacin, Certainly both require the same mindset to ensure - rather than thinking merely "how will this work", a quality-focused person will also, amikacin cheap, Lowest price for amikacin, or perhaps alternately think: "how might this be breakable". From this simple change in thinking flows several important approaches

Constraint-based thinking (as opposed to solution based thinking): allows an architect/developer to conceive of the set of possible solutions, low cost amikacin, Where to buy amikacin, rather than an enumeration of solutions. Buy amikacin without prescription, By looking at constraints, a developer implements the lean principle of deciding as late as possible, with as full information as possible.
Test-First: As one thinks of how it might break, scenarios emerge that can form the basis of test cases. These cases form a sort of executable acceptance criteria
Lateral Thinking: The constraint+test approach starts to get people into a very different mode, cheapest generic amikacin, Where to order amikacin, where vastly different kinds of solutions show up. The creative exercise of trying to break something provides insights that can change the whole approach of the system.

Â Schneier goes on to ponderÂ

This mindset is difficult to teach, amikacin online, Amikacin price, and may be something you're born with or not. But in order to train people possessing the mindset, amikacin professional, Cheap amikacin pharmacy, they need to search for and find security vulnerabilities--again and again and again. And this is true regardless of the domain, online amikacin. Good cryptographers discover vulnerabilities in others' algorithms and protocols, buy amikacin without prescription. Amikacin discount, Good software security experts find vulnerabilities in others' code. Good airport security designers figure out new ways to subvert airport security, amikacin vendors. Order discount amikacin online, And so on.Â Â

Â Here again - I think it's possible to help people get a mind-set about quality, but some do seem to have a knack, find cheap amikacin. Buy amikacin from us, It's important to have some of these people on your teams, as they'll disturb the waters and identify potential failure modes, cheap amikacin online. Buy amikacin without prescription, These are going to be the ones who want to "mistake proof" (to borrow Toyota's phrase) the system by writing more unit tests and other executable proofs of the system. Buy amikacin on internet, But most importantly (and I can personally testify to this) it is critical that people just write more tests. It is a learned skill to start to think of "how might this fail" until it becomes a background mental thread, cheap amikacin on internet, Cheapest generic amikacin online, always popping up risk models.A related concept is Demmings' "systems-thinking", which, buy amikacin once daily, Cheap amikacin pill, applied to software quality, causes one to start looking at whole ecosystems of error states, drug amikacin. This is when fearless re-factoring starts to pay off, because the elimination of duplication allows one to catch classes of error in fewer and fewer locations, where they're easier to fix. There are many and multifarious spin-off effects of this inverted questioning and the mindset it generates. Try it yourself, buy amikacin without prescription. When you're writing code, ask yourself how you might break it. What inputs, external state, etc. might cause it to fail, crash, or behave in odd ways. This starts to show you where you might have state leaking into the wild, or side-effects from excessively complex interactions in your code. So quality focus can start to improve not only the external perception of your product, but also its fitness to new requirements by making it more resilient and less brittle. Cleaner interactions and less duplication allow for much faster implementation of new features.I could go on, but I just wanted to convey this sense of "attitude" or "mindset," over mere technique. Technique can help you get to a certain level, but you have to let it "click", and the powerful questions can sometimes help.

Posted in Agile Engineering, Miscellaneous - Tagged agile, christian edward gruber, quality, security, systems

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May12
2008 1 Comment

Written by Mishkin Berteig

Buy anexil without prescription, Everywhere I go, there are three practices that make the biggest difference in overall productivity for teams and organizations. All three practices are part of agile methods such as Scrum and Extreme Programming, buy anexil cheap, Buy anexil without prescription, but you don't need to be doing these methods to take advantage of these practices. All of them are relatively inexpensive, anexil uk, Anexil no rx, and the return on investment for these practices is HUGE!!. Without further ado.., cheapest anexil online. Buy anexil no rx,

1. A Proper Team Room

This is astonishing: you can expect a 60% boost in team productivity from this single practice, buy anexil without prescription. The cost of re-stacking your cubes or office spaces is trivial compared to the benefits, buy cheap anexil online. Order no rx anexil, If you are going to do this, do it right, cheap anexil tablet. Order discount anexil, Do the research, hire an agile coach or consultant, buy anexil, Anexil buy online, but make sure it is done well. One organization I worked with was very excited about their new team room setup, buy anexil us. Buy anexil without prescription, They had a nice open-concept layout with lots of windows etc. Order cheap anexil online, But they had also made some big mistakes including that all the developers on a single team would have a low wall separating them from each other. Because of poor layout that would block communication paths, anexil india, Anexil in malaysia, their new setup would actually be worse than their old setup. Some research has shown that you can expect as much as a doubling of productivity (reference), order anexil. Order anexil from canada, This is one practice you don't want to let your competitors pick up before you do. Here are some tips on agile team room setup, buy anexil without prescription.

2, cheap generic anexil. Buy anexil canada, Short Iterations

Once you have set up your team room, it is critical for your team to have something to do, buy cheap anexil internet. Buy cheapest anexil, The fastest way to get your team doing something is to start using short cycles of work (iterations, sprints) to deliver valuable results such as working software, buy anexil in us. Cheap anexil overnight delivery, Many software development projects use iterations that are two weeks long or even a month long. Buy anexil without prescription, I strongly recommend iterations that are only one week long. Again, anexil free sample, Anexil pill, the benefits are incredible: your team will move through the stages of team development (forming, storming, buy anexil online australia, Anexil cost, norming and performing - reference) much more quickly than with longer iterations or no iterations... thus leading to high productivity much sooner, canadian anexil. Buy anexil once daily, The value here is in the time gained. This chart demonstrates how this works:

The short iterations provide a certain type of pressure that forces team and project crisis to happen quickly, anexil internet. However, because iterations deliver working, valuable results, the pressure is not demoralizing, instead it motivates teams to get through the crisis and reach the norming and performing stages of development quickly, buy anexil without prescription. Cheap anexil in usa, Again, to make this work, cheap anexil internet, Drug anexil online purchase, there are some critical success factors including methods of allowing team commitment, self-organizing and obstacle removal, anexil online without a prescription. Anexil prescription,

3. Test Driven Development

There is a myth that speed and quality are mutually exclusive, discount anexil no rx. Anexil without rx, This comes from the idea that you need to slow down to make stuff high quality or that you need to sacrifice quality in order to go fast. Buy anexil without prescription, It is true that initially you might get gains through these approaches. The really amazing thing happens when you try, cheapest generic anexil, Buy cheap anexil, deliberately and systematically, to do both high speed and high quality work. In software development this is best done through test driven development. In informal polling I've done with teams I've worked with, test driven development produces a noticeable long-term productivity gain as well as a simultaneous increase in developer and end user satisfaction due to a substantial reduction in defects discovered after the code leaves the developers. I have seen teams doing this that reduce defect rates to 5% (or less!) of what they once were prior to test driven development... while at the same time delivering projects faster than expected, buy anexil without prescription. Since substantial expense is squandered on defect management (tools, support teams, user training, lost productivity, etc.) and since staff turnover is also high in IT and high-tech, the results of test driven development on the bottom line are substantial.

Benefit of All Three Practices

If a team and an organization adopt these practices, get through the initial cost of learning them, then I would like to suggest that your teams can easily double their productivity if not more. For a team of 5 people working on a 100 day project this amounts to shortening the project to 50 days (save $200,000) or get twice as much work done. Clearly, an organization that adopted these practices and perfected them would save huge amounts of money and would be able to crush any competitors not doing this.

Previously I wrote a more general treatment of the benefits of agile and an article that lists other resources discussing the benefits of agile Buy anexil without prescription, .

Any discussion of benefits should at least say a few words about how exactly to measure those benefits. However, I'm out of time. How do you measure the benefits of agile.

Hey folks, if you found this useful, could you please "Digg" and "Reddit" this article?Â Thanks.

Not getting the benefits of agile. Consider the Agile Clinic!

Posted in Agile Management, Links to Agile Info, Reference Information - Tagged agile, iterations, scrum, team, war room

Posts tagged test driven development

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1. A Proper Team Room

2, cheap generic anexil. Buy anexil canada, Short Iterations

3. Test Driven Development

Benefit of All Three Practices

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Posts tagged test driven development

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1. A Proper Team Room

2, cheap generic anexil. Buy anexil canada, Short Iterations

3. Test Driven Development

Benefit of All Three Practices

Pages

Upcoming Learning Events

Tags

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