Logic Embedded in SpreadSheets (LESS)

Logic Embedded in SpreadSheets (LESS) will provide the user with a system which combines the power oflogic-based knowledge representation and reasoning with the familiar and easily-mastered user interface paradigm of a spreadsheet. There will be several conceptually hierarchical tiers of functionality availably within LESS. At the lowest level, first-tier functionality will simply allow users to embed descriptive logic functions into the existing spreadsheet metaphor. Second-tier functionality will give the user tighter coupling between descriptive logic object knowledge and the spreadsheet paradigm, adding the ability to view objects amenable to a matrix representation in a spreadsheet-tabular form. Third-tier functionality involves making the spreadsheet a complete mapping onto the knowledge base, fully integrated with it, including knowledge objects which do not lend themselves easily to a tabular visualization. Fourth-tier functionality adds the concept of spreadsheet/knowledge templates.