On 11/16/13 9:11 AM, David Sheets wrote:
At this point we learn that failure to distinguish between markup and models built on top of markup leads to endless conversational loops.Is it a better idea than using the string "null"? Other solutions include special attributes or a distinct element. Are there still more that are simple to express in XML the Syntax? Does XML lack something that would make using the command string "null" preferable to one of these other options in some context?Is this a Zen koan exercise? There is no general answer. The only answers exist in specific contexts people create.And so, we learn nothing about how the design of XML does or does not influence bad data design.