Terminology question - best way to state how name, minOccurs, maxOccurs, type are positioned within XML Schemas?

Hi Folks,

As you know, an XML Schema can specify a name for an element, the minimum and maximum number of occurrences, the type, and other things. I will refer to these things as properties, i.e., name, minOccurs, maxOccurs, type are properties of an element. 

Given that terminology, which of these is best:

(1) Properties are expressed as attributes.

(2) Properties are implemented as attributes.

(3) Properties are represented as attributes.

(4) Something else - what?

/Roger