手法を比較

	Charrette Method	Public Participation GIS (PPGIS)
分野	Urban Studies	Urban Studies
系統	Process / pipeline	Process / pipeline
提唱年	2006	2006
提唱者	National Charrette Institute (Bill Lennertz & Aarin Lutzenhiser)	Renee Sieber (synthesizing 1990s NCGIA work)
種類	Time-compressed, multi-day collaborative design and planning workshop	Participatory integration of local spatial knowledge into GIS
原典	Lennertz, B., & Lutzenhiser, A. (2006). The Charrette Handbook: The Essential Guide for Accelerated, Collaborative Community Planning. American Planning Association. ISBN: 9781932364217	Sieber, R. (2006). Public participation geographic information systems: A literature review and framework. Annals of the Association of American Geographers, 96(3), 491–507.
別名	Design Charrette, NCI Charrette, Dynamic Planning Charrette, Collaborative Design Workshop	PPGIS, Participatory GIS, PGIS, Volunteered Geographic Mapping
関連	4	4
概要	A charrette is an intensive, time-compressed collaborative workshop in which designers, planners, officials, and the public work together over several days to produce a feasible plan or design for a place. Codified by the National Charrette Institute in The Charrette Handbook, the method replaces the slow, adversarial sequence of separate meetings with short, repeated feedback loops in which designs are drawn, shown to stakeholders, critiqued, and immediately revised. Its purpose is to compress months of back-and-forth into a few days and to build shared ownership of the outcome.	Public participation GIS (PPGIS) is a family of practices that bring the spatial knowledge, values, and priorities of ordinary people into geographic information systems, so that community perspectives sit alongside expert and official data in planning and decision-making. Synthesized as a field by Renee Sieber in 2006, it ranges from facilitated workshops where residents mark up paper maps to web mapping platforms where thousands of people drop points marking places they value or fear. Its aim is both technical and political: to enrich spatial analysis with local knowledge and to widen who gets to shape decisions about place.