There are two types of attributes we might encounter: synthesized or inherited Synthesized attributes are those attributes that are passed up a parse tree, i.e., the left-side attribute is computed from the right-side attributes. values for the attributes of terminals are usually supplied by the lexical analyzer and the synthesized ones are passed up from there Inherited attributes are those that are passed down a parse tree, i. e, the right-side attributes are derived from the left-side attributes(or other right-side attributes) These attributes are used for passing information about the context to nodes further down the treeThere are two types of attributes we might encounter: synthesized or inherited . Synthesized attributes are those attributes that are passed up a parse tree, i.e., the left-side attribute is computed from the right-side attributes. Values for the attributes of terminals are usually supplied by the lexical analyzer and the synthesized ones are passed up from there . Inherited attributes are those that are passed down a parse tree, i.e., the right-side attributes are derived from the left-side attributes (or other right-side attributes). These attributes are used for passing information about the context to nodes further down the tree