This article examines how scenarios can be more than a futures studies tool
, and looks at the necessary epistemological, methodological, and ethical c
riteria for such scenarios. The aims that guide scenarios and, hence, those
that can spring from a human and social perspective are considered. In the
authors' view, scenarios tend to broaden mental frontiers because they are
multidisciplinary, multidimensional, and drawn from different experiences,
"ways of knowing" and personalities. An overview of the various ways of pl
anning and developing scenarios is presented on the basis of the recent lit
erature on the subject. The overview is followed by a presentation of the b
asic procedures culled from the authors' own international experience. The
need for adaptation and the recognition of differences, such as regional va
riations, are also highlighted. Common characteristics are described with s
ome illustrative cases, for example, the futures-thinking exercise undertak
en by a major religious order. Indeed, the cases reveal how the scenario-bu
ilding procedure may be adapted to different contexts given its flexibility
. The essential message is that the effective use of scenarios requires hum
ility, adaptability, and persistence. (C) 2000 Elsevier Science Inc.