Technology in the News

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A/B Testing Tech Note: determining sample size

37signals.com

September 20, 2011

It's a good question, and one that's important to understand.

Running an A/B test without thinking about statistical confidence is worse than not running a test at all-it gives you false confidence that you know what works for your site, when the truth is that you don't know any better than if you hadn't run the test. There's no simple answer or generic "rule of thumb" that you can use, but you can very easily determine the right sample size to use for your test.

Four tips for learning how to program

37signals.com

September 20, 2011

I recently received an email from someone who was getting into programming, and was asking for advice on how to proceed.

I wasn't able to help him take his project further, but it gave me a chance to think back on the times that I've been a beginner (whether it was web programming, or iOS programming, or even something unrelated to software entirely), and to contemplate how I approached those beginnings. I identified four things that I've found were fundamental to my particular learning style. Obviously, there are as many learning styles as their are learners, but these are what work for me.

The three secrets of business analytics (no rocket science here)

37signals.com

by Alex Anglin

September 8, 2011

I'm going to give away all of my secret sauce, and tell you the three things that are required to be successful at business analytics (or data science, or whatever you want to call it).

Your attention please

37signals.com

by Lee J. Colan

September 7, 2011

I used to think time was the most limited resource. It's so limited that you can't even save it for later.

But there's something even more limited than time. It's your attention. Attention is a subset of time, therefore it's more limited. How you spend your attention is more important than how you spend your time. Attention is about focus and careful, thoughtful consideration. Unlike time - which can be broken into convenient chunks of 15 minutes - attention doesn't divide quite so neatly or easily.

Ten Laws to Design By

7designs.co

by Ross Johnson

July 27, 2010

As designers we have to be aware of the function of our work and design as much as we care about the aesthetics and visuals.

There are a lot of terms for the design of how the site functions and works, from "usability design" to "user experience," what remains constant is that if we want to become better designers we have to pair these two concepts together. Using clear and effective design laws as guides we can use proven formulas for better design. These laws both assist in the usability / experience of our design as well as the aesthetic values. Furthermore being able to refer and cite these laws when presenting or discussing design you can further establish yourself as a expert with justified reasons for your design choices.

Debate over legalizing marijuana takes center stage in Colorado

9news.com

by Jeffrey Wolf

October 19, 2011

DENVER - After more than 40 years of surveys, support for the legalization of marijuana has reached the magic number: 50 percent.

In Colorado, voters will decide next year on whether to allow the use of small amounts of marijuana. Five years ago, the state voted 59 to 41 to turn down a similar measure. Next year, the measure will come back.

Make calls from locked iPhone 4s

9to5mac.com

by Brian Purkiss

October 25, 2010

A security hole in iPhone 4 software allows you to make a call after dialing a few pound signs and timing a few others as found by a MacForums member.

Hack Your Maps

A List Apart

by Young Hahn

April 30, 2013

Web maps have come a long way. Improved data, cleaner design, better performance, and more intuitive controls have made web maps a ubiquitous and critical component of many apps.

They've also become one of the mobile space's most successful transplants as more and more apps are powered by location-aware devices. The core web map UI paradigm itself-a continuous, pannable, zoomable surface-has even spread beyond mapping to interfaces everywhere. Despite all this, we've barely begun to work web maps into our design practice. We create icon fonts, responsive grids, CSS frameworks, progressive enhancement strategies, and even new design processes. We tear down old solutions and build new ones, and even take an extra second to share battle stories in prose and in person. Yet nearly five years since Paul Smith's article, "Take Control of Your Maps," web maps are still a blind spot for most designers.

Bruce Lawson on Opera's Move to WebKit

A List Apart

by Mat Marquis

February 11, 2013

This morning's announcement that Opera intends to abandon its Presto rendering engine has left designers and developers with a number of questions. I sent a few over to Opera's Bruce Lawson to shed a little light on the situation.

So. "Any exciting news in the world of Opera today," he asked knowingly. We announced that Opera will switch its rendering engine to WebKit and JavaScript engine to V8 by building on top of Chromium (the open-source browser that powers Google Chrome). We've been talking to the WebKit project and some of its contributory organizations for a while, and today we submitted a small but symbolic patch to WebKit that will bring all WebKit browsers' CSS multicolumn support up to the level we have in Opera's current proprietary Presto engine.

De-Railing Security Bugs

A List Apart

by Jeff Lembeck

February 5, 2013

Security should always be at the forefront of your mind when developing on the web, and for Ruby and Rails developers that has definitely been the case recently.

Multiple exploitations over the last month have sounded the alarms for anyone that has a Ruby or Ruby on Rails app deployed. How does this affect you? These bugs allow "attackers to bypass authentication systems, inject arbitrary SQL, inject and execute arbitrary code, or perform a DoS attack on a Rails application." To break that down: the attacker will have the full ability to run code on your system. With this security opening, they can now take over your server, and it doesn't stop there.

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