For those wondering what database sharding is all about here is a great overview on the concepts and strategies involved.
This article is a primer, intended to shine some much needed light on the logical, process oriented implementations of these scalability strategies in the form of a broad introduction. More specifically, my intention is to teach the majority of these implementations by example. Examples will be formatted as imagined scenarios modeling real life scalability challenges.
WCAG 2.0 addresses barriers to accessing the Web experienced by people with visual, auditory, physical, cognitive and neurological disabilities, and by older Web users with accessibility needs. WCAG 2.0 explains how to make content:
Perceivable (for instance by addressing text alternatives for images, captions for audio, adaptability of presentation, and color contrast);
Operable (by addressing keyboard access, color contrast, timing of input, seizure avoidance, and navigability);
Understandable (by addressing readability, predictability, and input assistance); and
Robust (for instance by addressing compatibility with assistive technologies).
There are definite advantages of using an agency versus using freelance information architects (insurance, not knowing who you are getting, etc.), but the article is pretty much a bash session for freelance user experience folks. This I find troubling because a) I’m a freelance user experience folk right now, and b) I used to manage a UX group about the size of Persona.
Input masks integrate formatting cues directly into an input field to help signal how to correctly answer a question. These formatting instructions are automatically included in an input and cannot be removed by a user. More importantly, a user cannot enter other non-valid characters into the input field.
Ridiculously simple API for translating a location into longitude and latitude coordinates. It also supports reverse Geo-coding which is retrieving the closest address for a given set of coordinates.
CouchDB is a distributed, fault-tolerant and schema-free document- oriented database accessible via a RESTful HTTP/JSON API.
We believe that CouchDB will drastically change the way that you build document based applications. CouchDB combines an intuitive document storage model with a powerful query engine in a way that’s so simple you’ll probably be tempted to ask “Why has no one built something like this before?”
Since we first released Google Chrome, the development team has been hard at work improving the stability and overall performance of the browser. In just 100 days, we have reached more than 10 million active users around the world (on all seven continents, no less) and released 14 updates to the product. We're excited to announce that with today's fifteenth release we are taking off the “beta” label!
On November 20th I setup an advertising campaign on Facebook for my startup, CloudContacts. The ad setup program crashed a few times but eventually I was able to get the ad running. I selected men and women from 25 to 53 with a college degree as my initial test audience. Facebook told me that there were somewhere about 33 million users for the demographics I selected. Clearly this 33 million number is just profiles they have, not actual activity.
