The problem with trees Many systems are organized hierarchically. The CERNDOC documentation system is an example, as is the Unix file system, and the VMS/HELP system. A tree has the practical advantage of giving every node a unique name. However, it does not allow the system to model the real world. For example, in a hierarchical HELP system such as VMS/HELP, one often gets to a lead on a tree such as: HELP COMPILER SOURCE_FORMAT PRAGMAS DEFAULTS only to find a reference to another leaf: Please see HELP COMPILER COMMAND OPTIONS DEFAULTS PRAGMAS and it is necessary to leave the system and re-enter it. What was needed was a link from one node to another, because in this case the information was not naturally organized into a tree. Tim Berners-Lee, Seeing With Fresh Eyes A City Is Not a Tree hierarchywww
Cool URIs don't change An Essay by Tim Berners-Lee www.w3.org What makes a cool URI? A cool URI is one which does not change. What sorts of URI change? URIs don't change: people change them. The User Interface of URLs www
Ensuring Excellence An Article by Marty Cagan www.svpg.com …in so many of the best product companies there is an additional dimension that goes beyond individual empowered product teams, and even goes beyond achieving business results. It has to do with ensuring a level of what I’ll refer to here as “excellence” although that is clearly a very ambiguous term. Over the years, this concept has been referred to by many different names, always necessarily vague, but all striving to convey the same thing: “desirability,” “aha moments,” “wow factor,” “magic experiences,” or “customer delight,” to list just a few. The concept is that an effective product that achieves results is critical, but sometimes we want to go even beyond that, to provide something special. Maybe it’s because we believe this is needed to achieve the necessary value. Maybe it’s because the company has built its brand on inspiring customers. Often this dimension shows up most clearly in product design, where functional, usable but uninspiring designs can often achieve our business results, but great design can propel us into this realm of the inspiring. Do they really need it? qualitycraftproductssoftware
Do they really need it? Does Google really need playful doodles to deliver the value they consistently provide in search results? Does Stripe really need to spend so much energy on the design of its site and SDK’s, which after all, are primarily for the developers that use their API’s? Does Apple really need to sweat the literally thousands of very subtle and often not consciously noticed interactions on its devices? On Taste