Your web page uses non-standard elements, so, following the advice of earlier ALA articles, you bang out a custom DTD to make sure your document still validates. Not so fast, says the W3C’s Quality Assurance team, who argue that crafting a custom DTD for the sole purpose of validation is a mistake … and then tell when it is the right thing to do.
More from A List Apart
Back in the day, when software was released (on physical media), it was considered done. In the present, some products could benefit from a limitation like that. To tie development to something immutable, such as a physical thing or a hard deadline, might just foster a sense of responsibility to design our product so it has what it takes to last a few years.
From the Blog
As the newest operating systems for Android and iOS enable deep-linking directly into third-party apps, Anthony Colangelo sees an expanding definition of “the web” and an opportunity to better serve our users.