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Dominic Burford - Professional Profile



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I am a professional software engineer and architect with over eighteen years commercial development experience with a strong focus on the design and development of web and mobile applications.

I have experience of architecting scalable, distributed, high volume web applications that are accessible from multiple devices due to their responsive web design, including architecting enterprise service-oriented solutions. I have also developed enterprise mobile applications using Xamarin and Telerik Platform.

I have extensive experience using .NET, ASP.NET, Windows and Web Services, WCF, SQL Server, LINQ and other Microsoft technologies. I am also familiar with HTML, Bootstrap, Javascript (inc. JQuery and Node.js), CSS, XML, JSON, Apache Cordova, KendoUI and many other web and mobile related technologies.

I am enthusiastic about Continuous Integration, Continuous Delivery and Application Life-cycle Management having configured such environments using CruiseControl.NET, TeamCity and Team Foundation Services. I enjoy working in Agile and Test Driven Development (TDD) environments.

Outside of work I have two beautiful daughters. I enjoy cycling, running and taking the dog for long walks. I love listening to music and am a fan of Rush and the Red Hot Chilli Peppers to name a few.

 
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Q&A Questions 0
Q&A Answers 28
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Comments 75

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GeneralTemplated HTML emails using RazorEngine Pin
Dominic Burford30-Nov-17 4:49
professionalDominic Burford30-Nov-17 4:49 
GeneralSending emails using Azure Sendgrid service Pin
Dominic Burford29-Nov-17 11:18
professionalDominic Burford29-Nov-17 11:18 
GeneralBuilding native enterprise apps is (probably) the wrong approach Pin
Dominic Burford28-Nov-17 1:05
professionalDominic Burford28-Nov-17 1:05 
GeneralAppropriate vs Consistent Pin
Dominic Burford9-Nov-17 3:24
professionalDominic Burford9-Nov-17 3:24 
GeneralCreating Generic RESTful API Services Pin
Dominic Burford20-Oct-17 5:01
professionalDominic Burford20-Oct-17 5:01 
GeneralIs your software team a democracy or a dictatorship? Pin
Dominic Burford16-Oct-17 21:44
professionalDominic Burford16-Oct-17 21:44 
GeneralSimplifying updating data Pin
Dominic Burford21-Sep-17 22:46
professionalDominic Burford21-Sep-17 22:46 
GeneralWhen 100% code coverage is not always enough Pin
Dominic Burford21-Jul-17 5:11
professionalDominic Burford21-Jul-17 5:11 
As part of our build process we run several hundred unit tests. Once these have completed execution, we then run code coverage analysis. This gives us a raw figure of the percentage of the code that has been exercised by the unit tests. Currently this is running at over 90% code coverage.

Even if we had 100% code coverage, this doesn't mean the code is immunue to faults. Whilst having 100% code coverage is a good figure to aim for, it doesn't imply that your unit tests have tested your entire codebase. How can this be? Surely having 100% code coverage means you have exercised every line of code? In fact this is where obsession over code coverage can lead to an over confidence in your testing strategy.

Here's a simple example.
int counter = GetNewCounterValue();

if (counter == 0)
{
    //do something here
}
In the example above, we can easily write a single unit test that will exercise all lines of code. We just ensure that when we arrange our unit test we inject a value of zero into the test harness. By doing so, our unit test will enter the if condition and exercise all lines of code. But what about the implicit else condition. Shouldn't we test that also? The answer is of course, yes we should. So we also need to write another unit test that injects a non-zero value into the test harness. So although our first test exercised all lines of code and therefore gave us 100% code coverage, we needed two tests to give us full conditional (branch) coverage.

This is where using code coverage alone can be a blunt tool. It is a useful indicator, and can be used to measure relative code coverage between different parts of the code. For example, it can be useful to see where your unit tests are weak, and where they are strong (relative to each other). But code coverage shouldn't be used as an absolute value on its own. In isolation it is pretty meaningless. It's real value comes when used to give comparative measurements of code coverage throughout the codebase.

It's also important to know the critical areas of the code, and ensure that these areas have adequate testing coverage. For example, it's probably important that your login functionality is adequately tested, as this is critical to the security of the application. So you probably want to invest more time and effort in ensuring that these critical areas of the code are tested more thoroughly than other lesser critical areas of the code. Not all areas of the code are equal. So not all tests are equal either.

So whilst it's important to have unit tests, it's also important to ensure that you spend time ensuring that all branches of the code are covered (not just the lines of code), and that the more critical areas of code have adequate testing coverage relative to other lesser areas of the code.
"There are two ways of constructing a software design: One way is to make it so simple that there are obviously no deficiencies, and the other way is to make it so complicated that there are no obvious deficiencies. The first method is far more difficult." - C.A.R. Hoare

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GeneralThat's the app in the app stores Pin
Dominic Burford18-Jul-17 5:00
professionalDominic Burford18-Jul-17 5:00 
GeneralDefensive Programming Pin
Dominic Burford28-Jun-17 7:23
professionalDominic Burford28-Jun-17 7:23 
GeneralMy first year - How time flies Pin
Dominic Burford19-Jun-17 1:40
professionalDominic Burford19-Jun-17 1:40 
GeneralShould software architects write code? Pin
Dominic Burford16-Jun-17 4:22
professionalDominic Burford16-Jun-17 4:22 
GeneralEnsuring your data is safe with Azure SQL Database Pin
Dominic Burford2-Jun-17 2:24
professionalDominic Burford2-Jun-17 2:24 
GeneralWhat makes a Senior Software Engineer? Pin
Dominic Burford30-May-17 21:53
professionalDominic Burford30-May-17 21:53 
GeneralMore Software Interview Skills 101 Pin
Dominic Burford25-May-17 6:03
professionalDominic Burford25-May-17 6:03 
GeneralSoftware Interview Skills 101 Pin
Dominic Burford12-May-17 5:44
professionalDominic Burford12-May-17 5:44 
GeneralBeat the Thrashing Pin
Dominic Burford5-May-17 6:03
professionalDominic Burford5-May-17 6:03 
GeneralWorking with Azure Blob Storage Pin
Dominic Burford27-Apr-17 2:29
professionalDominic Burford27-Apr-17 2:29 
GeneralWrestling with Apple Pin
Dominic Burford20-Apr-17 3:37
professionalDominic Burford20-Apr-17 3:37 
GeneralTwo unit tests, zero integration tests Pin
Dominic Burford10-Apr-17 22:39
professionalDominic Burford10-Apr-17 22:39 
GeneralThe Mediocre Mindset Pin
Dominic Burford29-Mar-17 1:10
professionalDominic Burford29-Mar-17 1:10 
GeneralHow much code coverage is enough? Pin
Dominic Burford21-Mar-17 5:14
professionalDominic Burford21-Mar-17 5:14 
GeneralThe Mythical Full Stack Developer Pin
Dominic Burford14-Mar-17 3:18
professionalDominic Burford14-Mar-17 3:18 
GeneralCreating your own private NuGet server Pin
Dominic Burford2-Mar-17 0:36
professionalDominic Burford2-Mar-17 0:36 
GeneralConsuming a dependency using NuGet Pin
Dominic Burford28-Feb-17 6:05
professionalDominic Burford28-Feb-17 6:05 

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