Slide 12 of 20
The reason I have combined these two features into one slide is that from a functional point of view they do the same thing. They are a cross between attributes and a directory. They are attributes in that they are associated with particular URLs and I believe they should be implemented through the attribute function. They are like directories in that these functions are only useful if they return information in an agreed upon format, can have extended attributes and have a mechanism to prevent collisions between the attributes. I would suggest leveraging whatever format we use for directories.