Many years passed.

Today I witness same discussions, but I don’t participate in them anymore; I have had my share of pioneer excitement. However, when I observe a significant deviation from the original meanings of these terms primarily by people who have no idea about the domain, it makes me think about one of characters I worked with in my previous life. He a priori believed that people were fools, which eventually made him a lot of money. I may also believe that I deal with fools, but that rather makes me sad…

The Enterprise Architecture term itself is being misused all the time. It does not make me laugh anymore when someone calls a software architect working on big projects an enterprise architect, it happens so often… So much they have no idea that EA is about strategic planning of the enterprise… Well, what I really want to talk about in so called Zachman ‘Framework’.

As you may know, the essence of the Zachman ‘Framework’ is a 6×6 matrix that models an enterprise and suggest a convenient way of documenting processes and analyzing the enterprise architecture. The rows represent different views/perspectives, the columns represent areas to consider for each view and are named using the words ‘what’, ‘how’, ‘where’, who’, ‘when’, and ‘why’. There is nothing much more to it, just a few rules prescribing consistency and describing the monadic view of the cells. Why on Earth is it called a framework? This is simply a model, even a matrix, presenting a view of an enterprise. I should admit that it is a very convenient way to deal with enterprise architecture, and should be definitely considered a great tool… not a framework.

Once looking into the Zachman matrix for one organization, I realized that the columns in the Zachman matrix are all one word questions in English language. Which means that if John Zachman spoke Russian, he would create more columns. Actually this thought helped me get over the limitations of the model and reasonably expand it. But much more entertaining was realizing the connection between the Zachman matrix and the following verse by Rudyard Kipling:

I keep six honest serving men
(They taught me all I knew);
Their names are What and Why and When
And How and Where and Who.

I send them over land and sea,
I send them east and west;
But after they have worked for me,
I give them all a rest.

I bet, if you dig the statistics comparing Vancouver and major cities in the US, the gap will be even huger.

As a result, the quality of skills of an average software professional in Vancouver is significantly below the used-to-be norm. Project managers keep adding contingency that does not cover low quality work and re-work anymore. Products are being developed rarely on-time and never on-budget. Managers tend to save money by hiring even cheaper (and therefore even less skilled) staff, and the entire quality of software products is degrading constantly and rapidly.

One may notice that in the last few years several noticeable software companies have been looking for new (and replacing former) technology executives; CTOs and VPs. Some of them are being replaced again, since changing the people did not change the paradigm, and some CEOs still believe that software products can be developed by a bunch of smart and enthusiastic young people working over time for pizza and pop. Unfortunately, cheap labour is akin to slavery; the quality is low and the value of the result can barely cover the cost.

I believe that most of the software development can be done cheaper and more effectively if companies let 60% of their employees go and hire real professionals with competitive salaries; competitive enough to keep the brain in the company. (Actually, just getting rid of morons would save money but how many companies are willing to do that?) I used to estimate projects I have been involved in as a consultant (used to… before I figured out the rule and got bored), and I guarantee that the majority of those projects could have been performed at 10%-20% of their official budget.

And what’s next? With the 2010 Olympics and changes in the demographics there is a high possibility that Vancouver becomes a retirement city. This factor adds even more pressure to the hi-tech community. I feel that companies like Absolute Software and PNI Media will start shrinking or looking for new investment ideas, and if they don’t restructure the businesses (or sell them, which is restructuring as well), they will reach the point of hibernation very soon.

And the real question is: “Does it create a business opportunity for people like myself who can fix the problem?” And the answer is … (to be continued)

What I figured out… If I just do nothing, I will bring more value to the project… because I will not be creating an opposite force.

Remembering my discussions with the Barbarian Programmer, who suggested using for i loops instead of foreach, I immediately applied it to my program.  And surprise… surprise… the data processing time increased.  An average time of performing an operation for 160,000+ records in foreach loop increased from 5.22 sec to 6.81 sec when I replaced the foreach with for i.

I was too lazy to look into IL; however trying to explain the phenomenon I came up with this thought. VB started using foreach before C-like languages.  Microsoft guys spent some time optimizing it, which apparently did not find its way into other languages; that’s why VB.NET foreach’s performance is better of that in C#.

Article by Justin Kruger and David Dunning

VMWare is your answer.

Well, now working with WPF… “How can we have Access/Visual Basic 6/old programs-like indicators for selected and new lines on the data grids?” That is the question, as Shakespeare would say.

I spent a lot of time (and I mean a lot) to answer this question, especially its second part about the new line indicator. And see what I got:

The following style completely defines the selected row indicator and partially (you also need some code behind) deals with the new row indicator:

        <Style TargetType="toolkit:DataGridRowHeader"
               x:Key="DataGridRowHeaderStyle">
            <Setter Property="Content"
                    Value="{Binding Converter={StaticResource cnvNewRowIndicatorConverter}}" />
            <Setter Property="Foreground" Value="RoyalBlue" />
            <Setter Property="FontWeight" Value="Bold" />
            <Setter Property="FontSize" Value="15" />
            <Setter Property="Height" Value="18" />

            <Style.Triggers>
                <Trigger Property="IsRowSelected" Value="True">
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate>
                                <Border BorderBrush="Black"
                                        BorderThickness="0,1,0,1"
                                        Margin="0,-1,0,0">
                                <DockPanel Background="Transparent">
                                <Path x:Name="arrow"
                                      StrokeThickness = "1"
                                      Fill            = "RoyalBlue"
                                      Data            = "M 5,13 L 10,8 L 5,3 L 5,13"/>
                                </DockPanel>
                                </Border>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </Style.Triggers>
        </Style>

For the new line indicator we need to add some code behind:

Public Class NewRowIndicatorConverter

    Implements IValueConverter

    Public Function Convert(ByVal value As Object, _

                            ByVal targetType As System.Type, _

                            ByVal parameter As Object, _

                            ByVal culture As System.Globalization.CultureInfo) As Object _

                            Implements System.Windows.Data.IValueConverter.Convert

        If value Is Nothing Then Return ""

        If value.GetType.FullName = "MS.Internal.NamedObject" Then Return "*"

        Return ""

    End Function

    Public Function ConvertBack(ByVal value As Object, _

                                ByVal targetType As System.Type, _

                                ByVal parameter As Object, _

                                ByVal culture As System.Globalization.CultureInfo) As Object _

                                Implements System.Windows.Data.IValueConverter.ConvertBack

        ' this function is not supposed to be called

        Throw New Exception

    End Function

End Class

What I learned:
1. There is a bug in the WPF toolkit (don’t know whether it’s removed in VS 2010), that sets the binding as TwoWay even if it is explicitly defined as OneWay/OneTime.
2. To avoid the problem one simply needs to specify IsReadOnly=”True” for all expression columns.

PS. Same error occurs if the column is created using calculations in the SELECT statement.