For this experimental project within the Encyclopedia of World Problems and Human Potential, codes have been appended to the value words on the index pages (and at the end of each profile). These codes correspond to the type sections into which the descriptive profiles have been tentatively clustered in the Encyclopedia. No attempt has been made to use more complex groupings as is done for the associated world problems or strategies database entries.

C: "Constructive" values (++)

Used for words which can be considered as reflecting "constructive" values. Because of the ambiguous connotations of many such words, they are each cross-referenced to a number of entries of Type P. The entries of Type P are each value categories or dimensions denoted by a pair of "constructive" and "destructive" value words in opposition, namely a "value polarity". This polar relationship sharpens the meaning that can be associated with a particular interpretation of the constructive value word identified by this type.

D: "Destructive" values (--)

Used for words that can be considered indicative of "destructive" values. Because of the ambiguous connotations of many such words, they are each cross-referenced to a number of entries of Type P. The entries of Type P are each value categories or dimensions denoted by a pair of "constructive" and "destructive" value words in opposition, namely a "value polarity".

P: Value polarities

Used for 225 value polarities identified from Roget's Thesaurus. They are in a numerical sequence adapted from the order in which they appear in Roget. The entries cross-reference synonymous "constructive" or "destructive" value words of Type C and Type D respectively.

Rather than attempt the possibly sterile exercise of producing descriptive texts on each value polarity, the entries include selected proverbs, aphorisms and quotations. This has the merit of highlighting the significance of each value dimension in a succinct and pithy manner linking it both to cultural lore and to the insights of those to whom wisdom is attributed in contemporary society. This material has been deliberately selected to highlight the dynamic relationship between values guiding constructive and destructive action.

Associating value words with value polarities also responds significantly to potential differences of opinion as to whether a particular value should be considered "constructive" as opposed to "destructive" (as could well be the case under certain circumstances). It is for this reason that the more usual terms "positive" and "negative" were not used. It is more understandable that "destructive" action may be necessary to clear the way for "constructive" action, and that "constructive" action may reach the point at which "destructive" action is necessary to initiate some new phase.

T: Value clusters

Used experimentally to cluster the value polarities of Type P.