Geek Reading November 14, 2014

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I have talked about human filters and my plan for digital curation. These items are the fruits of those ideas, the items I deemed worthy from my daily reading. These items are a combination of tech business news, development news and programming tools and techniques. You will note that some of the formatting has changed, and that is due to the change in my process.
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Scrum and Kanban: Getting the Most from Each

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Scrum is the most popular Agile methodology with Kanban a growing second
choice. Learn about the core parts of each one as well as how they
differ so that you can find the best fit for your team or organizational
context. For example, Scrum is great when you want to shake up the
status quo and transform the way you work. Kanban is great when small
changes are a better fit for the…

3 Developer Career Journeys

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If you’re trying to figure out whether you want to embark on a certain career path, or if you’re trying to find out how one breaks into that same career field and then progresses through it, I think it’s helpful to listen to the stories of people who have walked that path before.
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If you’re trying to figure out whether you…

The Illusion of Control

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Why do we keep trying to attain control?

We don’t like uncertainty, and control over a piece of reality relaxes us. A controlled environment is good for our health. In fact, when we are in control we don’t need to do anything. Things work out by themselves, for our satisfaction, because we’re in control. Being in control means never having to decide, because decisions are made for…

Conformity as an inhibitor to strategy

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Early in life, we are all made acutely aware of the power of peer pressure. Most of us probably attribute it to a deep need for belonging. But what if that deep sense of belonging is less about social acceptance and more about how we are psychologically wired? In fact, the pursuit of conformity goes beyond mere social dynamics; it is rooted in how our cognitive selves.

While this plays out in…

Ext JS Grid Grouping Tutorial

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This tutorial shows you how to create a grouped grid in Ext JS. Ext JS grid grouping is a common scenario in business applications where users need to analyze tabular data grouped by different attributes. The Ext JS application that you will create in this tutorial will render an Ext JS grid containing fictional data describing model cars. This article is part of a series of Ext JS tutorials that…

If you hear “perception is reality” you’re probably being screwed

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I was once told in a performance review that “perception is reality.” I was infuriated, and the words stuck in my mind as the most toxic thing a manager could say to an employee. I have avoided writing about it, but the “This American Life” episode about Carmen Segarra’s recordings at the Fed has inspired me to change my mind. Here’s the relevant section, emphasis mine:
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#NoProjects/#BeyondProjects: A Developer Footnote

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Recently I delivered a revised version of my “The End of Projects and What to do Next” presentation – otherwise known as #NoProjects / #BeyondProjects. The presentation is on Slideshare if you missed it – or at Lean Kanban UK 2014.
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During the post-conference drinks I was chatting with a developer – Matt from New Zealand if my…

Man, Woman, Dog: A Task from the Past

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Introduction

This article is a personal reflection more than some kind of tutorial or how-to article–which I have mostly written in the past. It describes solutions for an exercise that was given to students by  economics faculty who visited the computer science department. The task is relatively easy but somehow we couldn’t manage it at that time.
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Learn R: Hello World with R

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This article represents some of the basic concepts you need to understand in order to write a Hello world using the R programming language. Please feel free to comment/suggest if I missed one or more important points.

Following are the key points described later in this article:
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This article represents some of the basic concepts you…

Career Planning: Disaster Recovery

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One of the more important things that you have to remember is that you should always be ready for failure. As developers, we are used to thinking about stuff like that in our code, but this is true for real life as well.

I’m going to leave aside things like personal disasters for this post (things like car accidents, getting seriously sick, etc), because there are some ways to mitigate those…

PyWin32: How to Get an Application’s Version Number

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Occasionally you will need to know what version of software you are using. The normal way to find this information out is usually done by opening the program, going to its Help menu and clicking the About menu item. But this is a Python blog and we want to do it programmatically! To do that on a Windows machine, we need PyWin32. In this article, we’ll look at two different methods of getting…

The Top 5 Things You are Doing Today to Hinder Scalability

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At the CFSummit 2014, I presented on The Top 5 Things You are Doing Today to Hinder Scalability.

I collected my material through helping clients to scale their applications over a number of years. The important things in this presentation are listed in order. Decisions you make in your applications today, affect what options you have when you need to scale your application.

Certainly it is a…

Modeling Exercise: The Grocery Store’s Checkout Model

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I went to the super market yesterday, and I forgot to get out of work mode, so here is this post. The grocery store checkout model exercise deals with the following scenario. You have a customer that is scanning products in a self-checkout lane, and you need to process the order.

In terms of external environment, you have:

ProductScanned ( ProductId: string ) event
Complete Order…

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