[UPDATE: This post has been obsoleted by SIDA: Moving Object-Oriented Design beyond Model-View-Controller] I recently read about The DCI Architecture: A New Vision of Object-Oriented Programming, a successor/complement to the original Model–View–Controller design pattern, by one of the original authors. The DCI stand for: Data Context Interaction I was both impressed and confused. Impressed because I've been thinking for... Continue Reading →
2010 in review
The stats helper monkeys at WordPress.com mulled over how this blog did in 2010, and here's a high level summary of its overall blog health: The Blog-Health-o-Meter™ reads Fresher than ever. Crunchy numbers A Boeing 747-400 passenger jet can hold 416 passengers. This blog was viewed about 9,700 times in 2010. That's about 23 full... Continue Reading →
What Makes Programming Languages Successful?
Following up on my (subjective) list of what I like about Ruby, here's a (relatively objective) list based on articles about what makes programming languages successful. The characteristics widely-adopted languages seem to share: Generality (suitable for a wide range of problems) Extensibility (can easily be extended with new abstractions) Novelty (solves a certain domain of problems... Continue Reading →
Teach Me Time! Talking Alarm Clock & Nightlight (review)
Worked wonders for our 26-month old
What I love most about Ruby
I have some friends (Hi Dustin) that are serious language geeks, whom I often get into debates with. One of my common refrains is "to do it the Ruby way", because (while Ruby has its warts) it does so many little things beautifully well. So, as future ammunition, I figured I should try to collect links to my favorite Ruby features (much as many others have already done before me).
Using tel: Telephone URLs in iCal Events
[NOTE: I'm still trying to figure this out, but here is my current best understanding; please leave a comment if you have additional information]. A useful trick not many people know is that you can embed a telephone URL in an iCal entry, to make it easy for people attending to call-in. This is especially... Continue Reading →
Intrigued by Posterous
http://drernie.posterous.com/ Yes, I know I'm late to the party. But, now that they have Twitter and LinkedIn support, I figured I should take the plunge. This may be particularly useful for increasing the number of updates on https://ihack.us/. If so, I guess you'll see about it here. 🙂 Posted via email from drernie's posterous
Active Identity Clients (AICs) for OpenID
The OpenID community is still wrestling with how to deliver a first-time login experience that is acceptable to mainstream users. Research indicates we need something less open-ended than typing into a blank URL field, but neither is it desirable to push users to choose from a few (or worse, many) pre-selected identity provider logos. One approach for solving this problem is called (for lack of a better term) the Active Identity Client, or AIC (similar to what I previously called a Chamberlain). An AIC boostraps the identity selection process at a new website (aka Relying Party, or RP) by storing some amount of identity information on the user's home computer. The AIC uses that identity to access a persistent record of the user's interaction with multiple sites and identity providers (IdPs) to negotiate and streamline future such interactions. This (in theory) allows the user, rather than the RP, to prioritize which providers to use. A number of such AICs were demonstrated at last week's Internet Identity Workshop. Rather than attempting to standardize on a single AIC, a group of us discussed developing a common infrastructure that might enable a broad spectrum of AICs to innovate and compete. Specifically, we attempted to identity conventions, best practices, and extensions to existing standards that would support both "native" and "in-browser" AICs. This article is my idiosyncratic attempt to synthesize what we discussed into a coherent vision for Active Identity Clients. It may not fully reflect the opinions of any given participant, and certainly does not represent the views of our respective employers. Rather, it is a subjective snapshot of a still-evolving problem space, and is intended to provide a concrete starting point for further discussion, critique, and clarification.
Chamberlain: A User-Serving Model for Identity Management
The following is a hypothesis I am exploring for the Nov 2009 Internet Identity Workshop. Most proposals for open identity management on the Internet use the 'wallet' metaphor, where the user is expected to choose from amongst a variety of disjoint identities when accessing a given website. Rather than thinking of identity as something manually managed by the user (like cards in a wallet), I believe the vast majority of users want identity to be something that is managed *for* them -- the way a chamberlain in a palace might keep keys to all the rooms, and control who was allowed to go where in accordance with royal policy. The potential payoff is an architecture that would work reasonably well with the web as it is today, and scale cleanly to support more elegant mechanisms in the future. While my initial proposal below is unlikely to achieve all those goals, hopefully it will at least provoke others to come up with something even better.
The Gospel in Calculus, on WordPress LaTeX
GOOD NEWS for Modern Nerds Copyright 1986 Ernest N. Prabhakar, Ph.D. See more details at Radically Happy, and T-shirts at CafePress There is one God over all the universe, from everlasting to everlasting. Deuteronomy 6:4$latex \int_{-\infty}^{+\infty}\!\! \int_{-\infty}^{+\infty}\!\!\int_{-\infty}^{+\infty}\!\! \int_{-\infty}^{+\infty}\!\! {\cal GOD}\,dx\,dy\,dz\,dt \equiv 1$ He is independent of space and time. Malachi 3:6$latex \frac{\partial{\cal GOD}}{\partial t} =... Continue Reading →

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