Abstract

Spreadsheet systems were initially intended for individual use. Collaborative use implies there should be a local versioning mechanism. As such, it is proposed to use a modified Stick-On. This means to define them to cope with the wide variety of data types, which can be associated to spreadsheet cells. The proposed design includes a hierarchy of these new Stick-Ons, a Field Dependency Graph and a Peer Referencing Mechanism. © Springer-Verlag 2004.