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Speculation = Bad

Buy Sumamed (Zithromax) Without Prescription, Most of the work I do will -- at some point -- be reviewed by someone for completeness, accuracy, and quality. I will need that feedback. On a team, we often need to incorporate everyone's great ideas. Again, Comprar en línea Sumamed (Zithromax), comprar Sumamed (Zithromax) baratos, feedback. Whether work is individual or collaborative, the less work I personally do before I get the feedback I need (customer review, team-member review, compilation, running test, fast shipping Sumamed (Zithromax), etc), the less speculative work I have done. The less work I am likely to have to redo, Buy Sumamed (Zithromax) Without Prescription. The fewer defects I am likely to have introduced. The less work, Get Sumamed (Zithromax), as Pillar Technology VP Chris Beale says, I "put at risk." The less likely I am to have completely wasted my time barking up the wrong tree, chasing a wild goose, you get the idea.

The agile literature is not exactly rife with formal references to the principle of end-to-end early. Yet all good agile teams practice it, online buying Sumamed (Zithromax), more or less formally. At Pillar Technology Buy Sumamed (Zithromax) Without Prescription, , we strive to be explicit about this interesting agile principle, and to apply it ubiquitously and rigorously.

e2e Defined

In this and future blogs on this topic I'll explore a few specific applications of e2e, and also what it "feels like" to have this principle woven into your DNA (I admit to some Chutzpah there, but I've been at this awhile). Online buying Sumamed (Zithromax) hcl, So, first, a couple of concepts at the Principle level, before we dive into example e2e in practice. How about starting with an attempted definition. Open to your feedback, Sumamed (Zithromax) reviews, of course:

End-to-End Early, applied to any practice, gives us faster, cheaper feedback. Keeping feedback loops small tends to drive out speculation, which reduces rework, waste, and confusion, Buy Sumamed (Zithromax) Without Prescription. Is Sumamed (Zithromax) safe, This tends to keep costs lower, keep options open, and increase ROI.

Tiny little feedback loops are a rare commodity in software development, where traditional waterfall development defers feedback like end-to-end integration, end-to-end testing, and customer feedback until very late indeed, Sumamed (Zithromax) class. Many agile practices are designed to give us earlier, better feedback, but it is worthwhile understanding the e2e principle in general, and its universal power to save time and money by reducing waste and rework. Sumamed (Zithromax) from canada, So enough theory. How does this work. Buy Sumamed (Zithromax) Without Prescription, How do we use this principle to make practice-level decisions.

Horizontal e2e:
Dividing a Release into Value Stories and User Stories

As part of a so-called Pillar Plan & Define phase (where we practice what we call Agile Project Scoping, in order to commit to a pretty hard dollar figure and date up front, where our clients typically insist on getting them), Pillar software consultants divide valuable work into successively smaller, order Sumamed (Zithromax) no prescription, iteratively-deliverable chunks. They first elicit and prioritize the big chunks - Value Stories - and plan for those to be delivered in early releases. (In other agile methods these Value Stories might be called epics or themes, but would not likely be tied back to concrete expressions of business value, Sumamed (Zithromax) reviews, while our Value Stories typically are.)

Value Stories are then divided into (at least) User Stories, which in turn are prioritized, and divided into tasks (using a technique called Construction Modeling). Finally these tasks are estimated and role-assigned. When we set about to divide a Value Story into these smaller parts, we will use one of a handful of these and/or other techniques that focus us all on thin, "horizontal" end-to-end paths, Buy Sumamed (Zithromax) Without Prescription. (So Yes, to speak briefly to agile purists, Sumamed (Zithromax) maximum dosage, we go through this exercise of boiling all of this out up-front, for estimating purposes, whether or not these specific User Stories and tasks end up surviving as iterations unfold. More on this in a future blog.)

First, Sumamed (Zithromax) brand name, a definition of "thin," since that is much of what gives us the "early" part of "end-to-end early." The thinnest, smallest bit of business value our User Story can capture, the likelier we are to deliver it quickly and without defects. The quicker and better we deliver it, the quicker we can obtain real feedback from numerous stakeholders, Sumamed (Zithromax) no rx, at different steps along the delivery path (BAs, Product Managers, users, testing staff, Canada, mexico, india, etc). The sooner we get that feedback, the more cheaply and easily we can make course corrections And again: the sooner and cheaper we can make any kind of course correction, the more speculative work, rework, and waste we are "driving out of the system."

By "horizontal" end-to-end, Sumamed (Zithromax) natural, I mean a series of chronological steps. Buy Sumamed (Zithromax) Without Prescription, In particular, I mean the entire trip that a chunk of work must traverse in order to deliver its freight of business value, so that ROI can begin to be earned. So if XP calls the running, tested, delivered, Is Sumamed (Zithromax) addictive, and accepted state "Done Done," then perhaps I mean "Done Done Done."

Specifically, this includes (at least) all steps from the inception of a User Story, through requirements elicitation, acceptance test writing, design, Sumamed (Zithromax) interactions, development, user acceptance and verification, and production deployment. Even that set of steps is not enough, Taking Sumamed (Zithromax), for most clients, to truly capture end-to-end. If a User Story is part of an application that must integrate with other applications (in a SOA architecture, for example) before stakeholders consider it truly "done," then that integration step should be part of the end-to-end path.

End-to-end journey of a feature.

If we cannot begin to earn ROI on a User Story until, order Sumamed (Zithromax) from United States pharmacy, for example, some documentation is written, some sales have occurred, and some user training is complete, Sumamed (Zithromax) class, then perhaps those steps too should be in our definition of "end-to-end." If we are consulting at a level that includes mentoring both software development process and business process, then we might very well go that far in our e2e definition. We might not tick something off on the backlog until people who have nothing to do with software development have verified that our feature is in the field, saving or making money, Buy Sumamed (Zithromax) Without Prescription.

Vertical e2e:
Designing User Stories to Traverse Architectural Layers

Technical uncertainty is project risk, pure and simple. Such risk might pounce on us at any moment from behind any piece of technology through which our data must pass (a framework, a data repository, Sumamed (Zithromax) for sale, a UI technology, an external service, you name it). To mitigate such risk, Fast shipping Sumamed (Zithromax), we want some of our early work on a project to deliver running, tested code that actually uses all of the risky touch points as early as possible. We want our e2e paths to give us the soonest, best possible feedback on how workable they actually are.

Martin Fowler has a great article on software architecture Buy Sumamed (Zithromax) Without Prescription, that wanders toward a definition of architecture that sounds like this: "architecture
is the decisions that you wish you could get right early in a project, but that you are not necessarily more likely to get right than any other." He goes on to discuss how the least reversible things we commit to in the design, the really big important things (according to us) are what we might agree constitute the architecture. If we accept this definition, then we want to keep the cost of such irreversibility as low as possible, Sumamed (Zithromax) description, and e2e can help us quite a bit with that. Big, irreversible architectural decisions need not be committed to all at once, in one go. Order Sumamed (Zithromax) online overnight delivery no prescription, We can and should experiment, or at least explore, using e2e. If we can and must back out of such big decisions early, then let's find a way to do it.

When we at Pillar create User Stories early in a release, part of our purpose is to have the data traverse "vertical" round trips through all of the anticipated architectural layers or touch points in a system, Buy Sumamed (Zithromax) Without Prescription. This is especially important when our architecture includes layers, Sumamed (Zithromax) canada, mexico, india, frameworks, services, repositories, APIs, Low dose Sumamed (Zithromax), GUIs, or external dependencies about which we don't yet know enough. Of course, such slices are not always truly topologically vertical, say, in an SOA context, Sumamed (Zithromax) from canadian pharmacy. The paths might explode all over the enterprise. But within an application, we'll mostly have horizontal layers that we want to traverse vertically, as completely as possible.

Vertical end-to-end slice. Buy Sumamed (Zithromax) Without Prescription, If a candidate open-source Java workflow engine or CMS system or OR/M mapping framework proves unworkable for a given system, project team, or technology stack, my architectural e2e User Stories or spikes will let me know quickly enough that I can change course, making an alternate selection while that change is still possible or perhaps even cheap. Sumamed (Zithromax) photos, Again, I want this work to be as thin as possible, while still delivering measurable business value. Thin, small stories are also nearly always easier to estimate, plan, buy Sumamed (Zithromax) without prescription, track, and verify. Small and thin are great good things in agility.

With these thin vertical slices, Sumamed (Zithromax) use, I mitigate the "irreversibility" of my architecture, and I drive more speculation out of the system, which again reduces rework, waste, and ultimately expense. Can't use that particular workflow engine, Buy Sumamed (Zithromax) Without Prescription. Whew, buying Sumamed (Zithromax) online over the counter. At least we are choosing to swap it out in week 2, as opposed to week 20.

Ubiquitous e2e Example: Simple Unit Tests

E2E can apply to nearly any activity, once you are experienced at spotting speculative work (which basically means planning to deliver too big a chunk of anything, Purchase Sumamed (Zithromax) online, which in turn delays your feedback, and potentially incurs more rework expense for you).

A teeny-tiny example: how big should a jUnit test be. Buy Sumamed (Zithromax) Without Prescription, How much behavior should it specify and test. Answer: one discrete path through the "System Under Test." This is known in Gerard Meszaros' book, xUnit Test Patterns: Refactoring Test Code, as the Simple Test pattern, discount Sumamed (Zithromax), and as the "Verify One Condition per Test" principle.

But lurking beneath this testing principle is the End-to-End Early principle. By test-driving, keeping my unit test simple, What is Sumamed (Zithromax), and getting to green quickly, I learn quickly about (A) how workable my existing design is, (B) how difficult it is to actually do the work, (C) how long it takes me to do that work, and perhaps also things like (D) unhappy-path edge cases and exception cases I had not considered earlier. If I am pairing or conducting code reviews, then I can also get faster reaction and feedback from another pair of programmer eyes, which will doubtless catch something I missed.

This is, of course, the original test-red-green-refactor cycle from classic XP, Buy Sumamed (Zithromax) Without Prescription. A thin end-to-end slice is nearly always just a tiny feedback loop.

Thin unit-testing End-to-End cycle.

All of this has the effects that e2e always has: faster feedback, faster and cheaper course correction, lower rework cost, time and money saved.

And in this particular example, I get additional, vital benefits: my Simple Tests tend to "localize defects" really well, which makes debugging trivial; they tend to be robust (hard to break by design or requirements changes); and they tend to be easier to read and understand, for programmers new to the codebase.

Next time on this topic: some more examples, less technical examples, and a qualitative sense of how e2e "feels.".

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Buy acomblia (Acomplia) Without Prescription, One thing I find repeatedly in dysfunctional software development shops is managers and executives who, instead of encouraging and enabling their staff to form healthy, cohesive, high-function, self-organizing, fulltime project teams or product teams, essentially ask everyone to be part-time members of lots of teams. They micromanage everybody's workweek, or worse yet, workday, where can i order acomblia (Acomplia) without prescription.

This means that people must do things like work Monday on one project, work Tuesday through Wed on another project, Order acomblia (Acomplia) online c.o.d, and Thurs through Friday on another. Worse yet, I see people whose days are actually subdivided into work on various projects. This is variously called matrixing, where can i buy cheapest acomblia (Acomplia) online, time-slicing, etc.

There are roles and people for whom this is no big deal, but they are few, Buy acomblia (Acomplia) Without Prescription. Acomblia (Acomplia) over the counter, For the average programmer on the average enterprise application of non-trivial size this continual context-switching is a big, costly, wasteful, unnecessary deal, acomblia (Acomplia) images, and a terrible idea. It expends tremendous amounts of energy in thrash, Acomblia (Acomplia) online cod, churn, and waste. Let me explain.

The Cost of a Context Switch

Let's say some executive runs a cab company that owns every cab in Dallas, acomblia (Acomplia) coupon, Chicago, and Miami. Buy acomblia (Acomplia) Without Prescription, And lets say that for some odd reason, there is no way to get enough cab drivers to cover all the demand in all three cities. Comprar en línea acomblia (Acomplia), comprar acomblia (Acomplia) baratos, This guy signs big contracts with, say, event coordinators, to supply all of the cabs to meet all of the demand at all of the convention centers in each city, buy acomblia (Acomplia) from canada.

So, to try to spread his supply around so that no city and event is starving for cab drivers at 6:00 PM when all the convention attendees decide to go bar-hopping, Is acomblia (Acomplia) safe, he has this brilliant idea. He'll make his cabbies time slice. He'll have each of them work Monday in one city, then get on a bus and travel to the next city on Tuesday, generic acomblia (Acomplia), and work through Wed. Then the hapless cabbie will take a bus to the third city to work Thurs through Friday, Buy acomblia (Acomplia) Without Prescription. Brilliant. Acomblia (Acomplia) results, The executive will have the same number of cabbies in each city at each time, roughly.

So, how well would this work, acomblia (Acomplia) without prescription. Cabbies would spend lots of time in buses they didn't spend before. Buy acomblia (Acomplia) Without Prescription, That would be wasteful. And they would have to spend a lot of time familiarizing themselves with the non-trivial street maps and optimal driving patterns of each city. Online buy acomblia (Acomplia) without a prescription, That would consume more time. And every time they switched cities, they would have to refamiliarize themselves with the city they were now in.

So if the cab company executive is anything like software executives, kjøpe acomblia (Acomplia) på nett, köpa acomblia (Acomplia) online, he does measure how much time each cabbie is in a cab, working. But he does not measure how much time the cabbie spends on the bus between cities, Buy acomblia (Acomplia) Without Prescription. Acomblia (Acomplia) pics, Nor does he measure the time spent getting reacquainted with the new city. Nor does he measure the customer disappointment that results from groggy, confused cabbies taking too long to get from one place to another, or just plain getting lost, acomblia (Acomplia) cost.

For a programmer to switch, for example, Acomblia (Acomplia) dosage, from one complex J2EE codebase and problem domain to another, with their different architectures, designs, codebase details, acomblia (Acomplia) recreational, configurations, etc, Herbal acomblia (Acomplia), takes time. Just getting a complex Eclipse project checked out in its current state and up and running again can take a good while. Buy acomblia (Acomplia) Without Prescription, Getting reacquainted with the current backlog of tasks takes time. Finding out what work has been done in your absence takes time. All this context switching takes lots of time, acomblia (Acomplia) trusted pharmacy reviews. It's wasteful time, too. Buy cheap acomblia (Acomplia), It's muda. It's unnecessary and silly, Buy acomblia (Acomplia) Without Prescription.

Another metaphor: lots of context switching per day is like asking your staff to work on the 1st floor of a building with no elevators for a couple of hours, then work on the 45th floor for a couple of hours, then hoof it back down to the 1st floor for the rest of the day, order acomblia (Acomplia) no prescription. It is exactly this idiotic and unnecessary.

The managers who make these matrixing decisions do, Ordering acomblia (Acomplia) online, to be fair, live in a world of continual context switching. That's what management is about, for better or for worse, buy cheap acomblia (Acomplia) no rx. Buy acomblia (Acomplia) Without Prescription, When you sign up for management, you sign up for that (though my opinion is that average management context switch is far simpler than the average programmer context switch).
These same managers are happy to notice the time programmers spend heads-down in their cubicles. But they don't measure the cost of all these bus rides and long head-scratching sessions staring at street maps. Acomblia (Acomplia) street price, They don't time the long trips on the staircase (I know, multiple metaphors requires you, reader, to context-switch, acomblia (Acomplia) duration. Try to keep up, will you?!)

Cabbies should spend as much worktime as possible driving, Acomblia (Acomplia) pictures, in a single city. Programmers should spend as much worktime as possible coding and interacting with customers, on a single system, Buy acomblia (Acomplia) Without Prescription. Managers and executives should strive to enable cohesive, self-emergent teams to spend as much time focusing, collaboratively, acomblia (Acomplia) used for, on a single system or product. Managers should strive to minimize all kinds of muda, Acomblia (Acomplia) gel, ointment, cream, pill, spray, continuous-release, extended-release, including context switching.

Time-Slicing and Matrixing Mask a Lack of Courageous Leadership

I believe this to be true. Managers who ask their programmers to work on several complex projects at once are ultimately compensating, poorly, where can i buy acomblia (Acomplia) online, for their own lack of courage to stand up to their own stakeholders and say (1) There are not enough resources to deliver everything under the sun that you are asking me for, and (2) You are going to have to prioritize your projects. Buy acomblia (Acomplia) Without Prescription, Things will go so much better if you learn about teams. Purchase acomblia (Acomplia), Enable teams to work together and stay together on the same system for long periods.

Don't be fooled into believing that this time-slicing is some kind of management fact of life. Hogwash. It's a crazy practice, purchase acomblia (Acomplia) for sale. Don't give into the crazy pressure, Buy acomblia (Acomplia) Without Prescription. Instead, have enough backbone to tell your stakeholders that they cannot have everything under the sun. Acomblia (Acomplia) dose, Because whether or not you tell your own managers and stakeholders, it is true. There are limits to your teams' capacities. And time-slicing and matrixing everybody will not make that problem go away, australia, uk, us, usa. Buy acomblia (Acomplia) Without Prescription, In fact, it will make it worse. It will increase waste, reduce throughput, reduce quality, reduce morale, increase defect rates, and increase turnover rates. When people have to keep switching from one thing all the time, back and forth, they start to go crazy.

Note: After I completed this post, Ken Ritchie made me aware of a post on a similar topic by Rick Brenner, here. It's interesting, and parallel to my thoughts. Well worth the read; provides lots of additional good ammo for the good fight. Thanks, Ken.

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Never Saw a DSL Coming

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A few months ago a colleague of mine and I at Pillar were tasked with an interesting little proof of concept. We used Fit and FitNesse to prove, for a client, that we could test some business data, in a transitory XML representation, as it made its way from one application to another along a long pipeline, Buy Hiconcil (Amoxicillin) Without Prescription. A transaction representing an insurance policy made its way from point A, Where can i cheapest Hiconcil (Amoxicillin) online, a web application, to an XML representation that was a brute-force transliteration of that application's Oracle database, then through an XSL to point B, an XML representation that more closely represented a "canonical" data model to be shared by all other enterprise applications, buy Hiconcil (Amoxicillin) from mexico, and then to point c, an Enterprise Data Warehouse. Hiconcil (Amoxicillin) mg, The teams involved had few automated tests of any kind, and were having trouble demonstrating that any bits of data could make it from Point A through Point B to Point C intact. They wanted to assert much more than that about these transactions, of course, Hiconcil (Amoxicillin) long term. They wanted to assert that if certain elements showed up in the XML with certain values, certain other elements were also present with certain values. Buy Hiconcil (Amoxicillin) Without Prescription, There were several subtly different varieties of these assertions they wanted to make. Doses Hiconcil (Amoxicillin) work, Each was to use Xpath expressions to specify where each element in the XML was expected.

Now, using Fit ColumnFixture style tables as they are typically used, we might have come up with a different table style for each of these assertions, about Hiconcil (Amoxicillin). Let Fit do all the semantic work. We might have used a single ColumnFixture extension and let it do all of the work itself, Hiconcil (Amoxicillin) overnight, with eight gazillion little custom methods. The problem was, we were going to need to be able to throw random sets of these assertions at different sample XML files representing different insurance policy varieties, for different business units, and for different policy states (new, renewal, cancellation, etc), Buy Hiconcil (Amoxicillin) Without Prescription. The test tables involved, and the underlying fixture code, threatened to get hairy, effects of Hiconcil (Amoxicillin), within 10 minutes of spiking it.

So my smart colleague, Hiconcil (Amoxicillin) australia, uk, us, usa, Jason, suggested that we do something a bit outside the Fit box. He suggested we use one ColumnFixture table to specify the superset of all the assertions we might want to make about any sort of policy transaction. Who cared how many of them there were, rx free Hiconcil (Amoxicillin). Buy Hiconcil (Amoxicillin) Without Prescription, We would load them all up using a FitNesse SetUp page. Then, with a big suite of different Fit test pages, Buy Hiconcil (Amoxicillin) no prescription, we would throw just the subset we needed at any XML file under test. The test page would show only the tests we actually ran, the assertions we actually made, and the results we got, Hiconcil (Amoxicillin) forum. Simple, right. Hiconcil (Amoxicillin) blogs, Wrong. Great idea, but a problem with a bit of texture, Buy Hiconcil (Amoxicillin) Without Prescription. While, one way or another, we were going to make it easier for business stakeholders to see that their policy transactions were making it successfully along the application and repository pipeline, buy Hiconcil (Amoxicillin) online no prescription, we were going to have to have to write a fair bit of XML assertion-related Java to make it happen.

Keeping the Fixtures Thin

It was key to me, Hiconcil (Amoxicillin) steet value, from blogs I had read, reports I had gotten firsthand, and from personal experience, that we keep the Fit fixture code just as razor thin as possible, online buying Hiconcil (Amoxicillin). And I managed to do that. Below is a bit of the Java fixture for loading what we chose to call an XMLTestCase -- one of the specific tests we wished to throw at specific XML files. Buy Hiconcil (Amoxicillin) Without Prescription, [crayon-56565c65207ca/]
Temporary null-conversion hacks aside, this was as thin as I could make it. Hiconcil (Amoxicillin) price, coupon, The execute() method immediately delegated to a static singleton for purposes of creating and adding incoming actual "XML TestCase." Here's a chunk of the FitNesse table that specified these homegrown "test cases."

FitNesse Table for Specifying XML Test Cases

Pardon the margin-spanning spread of the thing. It's big. I cannot figure out how to show this without violating my margins, so we'll just have to tolerate it, japan, craiglist, ebay, overseas, paypal, until/unless I adopt a more margin-capacious theme.

DSL. What DSL, Buy Hiconcil (Amoxicillin) Without Prescription. Hiconcil (Amoxicillin) pharmacy, What am I talking about?

So, yeah, I know. This is a lot of lead-up, Hiconcil (Amoxicillin) wiki. Bear with me.

So this little chunk of the table shows the easy stuff -- testing simply that specific Xpath-specified elements show up without null values in the XML test files. Buy Hiconcil (Amoxicillin) Without Prescription, The "Node A to Value" in the "test case type" column means that we want to check the value of a single node, Node A. Online Hiconcil (Amoxicillin) without a prescription, The "not null" entries in the "value expression" column mean any value will do, as long as it is not null. But that column is where things started to get hairy for Jason and I, despite our initial efforts at avoiding hairiness, after Hiconcil (Amoxicillin). When is it ever otherwise.

So eventually we ended up with what was a decidedly ugly little boolean-logic-like notation for specifying that Hey, Get Hiconcil (Amoxicillin), if Element A has a value of some sort, then there had better be some sort of other value in Element B. In the table, this looked like this:

Nuther FitNesse Table for Specifying XML Test Cases

Check out the entry in that rightmost "value Expression" column this time: "0 IF UDE; 1,0 IF CC", Buy Hiconcil (Amoxicillin) Without Prescription. So, with the proper legend table, Hiconcil (Amoxicillin) without a prescription, it might be understandable, right. Cheap Hiconcil (Amoxicillin) no rx, (We had such a legend table.) No, not really. It's nearly all operands and no operators, for assertion purposes, Hiconcil (Amoxicillin) schedule. It's inscrutable with or without legend, so I'll explain it. Buy Hiconcil (Amoxicillin) Without Prescription, Note the little phrase in the third column from the left: "Node A to Value based on Node B Value." That describes what kind of assertion we want to make in this case. Hiconcil (Amoxicillin) dangers, We want to test that if Node B has one of a permitted set of values, then our test passes if Node A has one of its own set of permitted values. So in this case, if Node B has a value of "UDE" then Node A had better have a value of 0, Hiconcil (Amoxicillin) from mexico. (That's what "0 IF UDE" means.) And if Node B has a value of CC, then the Node A value better be one of 1 or 0. My Hiconcil (Amoxicillin) experience, (That's what "1,0 IF CC" means.)

Now this test design (fixture and other code aside) was not heinous to us immediately, but almost. We eventually ended up, in our little spike of a Proof of Concept, with 6 different kinds of these custom assertions, and our notation just evolved wildly to accommodate it all, with a kind of clumsy, yodeling abandon, Buy Hiconcil (Amoxicillin) Without Prescription. One value expression, purchase Hiconcil (Amoxicillin) online no prescription, for checking a value relationship between 3 nodes, ended up reading like this "not null IF ((NodeB = DIRBILL) AND (NodeC = Billing Category))". Hiconcil (Amoxicillin) price, Without proper lexical support, brother, that is heinous.

We justified this hackery by saying to ourselves and each other (and the client's technical staff) "Look, Hiconcil (Amoxicillin) no prescription, this is a spike, a PoC. Buy no prescription Hiconcil (Amoxicillin) online, This is disposable code. Buy Hiconcil (Amoxicillin) Without Prescription, If we have to do this for real, we'll devise a real DSL of some sort, something far more fluent." We didn't want to end up with our own homegrown parsers and lexers (shudder), but we knew at this point that we eventually wanted a real DSL.

But we were on a tight deadline, and our task was not to prove we could produce a beautiful assertion DSL for XML element relationships. It was to show that Fit testing might work at all to prove that XML-based insurance policy transactions could take a little motorcycle ride without falling off the bike and dying in the street, Hiconcil (Amoxicillin) alternatives. We would crack the DSL nut another time. (Do those metaphors work together. No. Oh well, it's late.)

So, for the next blog on this topic, I'll show you a few more things:

  1. How the thin fixtures freed me up to evolve a little Java object hierarchy that specializes in making assertions about XML element relationships;

  2. How this is great because we can invoke those POJOs from any testing framework, not just Fit;

  3. How, because we had the beginnings of a lame DSL with no underlying language base, we started down a genuinely heinous road of hard-coded happy-path-only String splitting, trimming, and other crappy substitutes for real lexing and parsing;

  4. How I would like to evolve a real DSL, based on (maybe) Groovy, if we get permission to take this work a bit further.


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If we are really ready to be “post-agile,” then why do I keep seeing the following things over and over again?

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  • Codebases with nearly zero unit test coverage

  • Big Ball of Mud codebases with massive duplication, dead code, static util patterns and promiscuous global sharing, and best of all -- extremely tight coupling throughout

  • Programmers with rudimentary understanding of Object Oriented principles and practices

  • Close to zero familarity with Fowler’s Refactoring pattern language

  • Systems that fail in production deployment, over and over and over again

  • Programmers toiling, heads down, in their cublicles, tiny isolated islands in vast seas of muda and chaos

If the post agilist age will be a Space Age, then we are in the Bronze Age.

If We Actually Were Ready for "Post-Agilism"...

So OK. Let's look ahead to a possible Utopian future state, Buy ATM (Zithromax) Without Prescription. Once the average software shop has something like 85% unit test coverage of all business-critical apps. Once average codebase method size is under something like 30 lines of code. Once the average shop has a continuous integration server that reports on code health (cyclomatic complexity, test coverage, etc). Once we have those who write sql and build schemas automating their changes, and storing everything in version control. Once more than 2% of the software world understands the Fit testing revolution.

Once the average programmer understands separation of concerns, and gives a mouse fart about code extensibility. Once we have widespread passion about continuous learning, best practice evolution.

Once we have at least all of that, trouble me again with articles about a golden, post-agilist age.

In the meantime, please return to your previously scheduled assortment of emergency deployment meetings, angry phone calls with betrayed stakeholders, notifications that your best and brightest programmer has just quit to move to San Francisco, and urgent emails from Mercury QTP sales reps.


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