Attribute
A single descriptive feature of something. For example, a performance standard might have a range of attributes, including name of the standard (sward or vegetation height); unit of measure (e.g. mm); value (as a parameter, e.g. 25, or 45 - 50); a qualifier to a value (indicating if the value is a range, maximum value, minimum value, greater than or equal to; less than or equal to, or a statement), and a quality grade (for example, 1 to 5, or Entry to Elite) where this is included as an attribute rather than an overarching category.