$value

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In a Decision Table, a $value refers to the cell value on each rule line (i.e., rows on the decision table). When writing expressions either:

1. On expression of a column
2. On a term associated with a column

the $value can refer to the value of the cell below the column.

In Decision Tables, the Equality(==) and Assignment(=) operators are a default and implicit operators for condition and action columns. This means you don’t need to add ==$value or =$value to your expressions in Decision Tables. For example, if you set

• obj.Property in condition column, becomes obj.Property == $value
• obj.Property in action column, becomes obj.Property = $value

at runtime automatically.

$cell

This is a local function in Decision Tables. Allows referencing the cell with column name

$cell(Column Name)

• Column Name: name of a condition column
• $cell function only references explicit values

You can use this function in the condition column as well as in the action column.

• Example for using the $cell function in condition column : click here 
• Example for using the $cell function in the action column :