# Designated Values

Telmai assesses correctness of special designated values such as:

**Default value** where a predefined value is used as a proxy for unspecified actual value. 

Examples: 0 or -1 may be used as a default value for Salary, ‘Medium’ for Shirt\_Size, ‘Clear’ for Color, ‘US’ for Country, ‘23%’ for Fed\_TAX, ... etc. Note that default values might get intermixed with actual values and, thus, a desire to have them identified will depend on the specific use case

**Placeholder** where a dummy value is used as a proxy for unknown actual value. The placeholder can be thought of as a temporary value until the actual value becomes known, or just as a mere empty field filler. Examples: “\*\*\*\*\*\*\*” may be used as a placeholder for Title, “(415) 111-1111” for Phone, 99999 for Zip\_Code, … etc.

**Empty proxy** where a string indicating a non existence of value is used. Such proxies come in all sorts of shapes and sizes. Examples: “ ”, “\[ ]”, “none'', “null'', “n/a'', “nothing'', “not provided'', “unknown'', … etc