Observe
Describe the site, boundary, route, light, use, and person before prescribing change.
Separate
Keep cultural/metaphorical meaning distinct from measurable environmental or usability claims.
Compress
Use the full 81 internally; return a small set of meaningful spatial choices to the person.
01Site9 primitives
1.1terrain1.2water relationship1.3approach1.4shelter1.5exposure1.6view1.7noise1.8microclimate1.9context02Boundary9 primitives
2.1inside2.2outside2.3threshold2.4wall2.5opening2.6edge2.7buffer2.8privacy2.9protection03Entrance9 primitives
3.1arrival3.2door visibility3.3clearance3.4transition3.5first view3.6compression3.7release3.8welcome3.9obstruction04Path / flow9 primitives
4.1route4.2turn4.3branch4.4crossing4.5dead end4.6circulation width4.7speed4.8pause4.9destination05Center9 primitives
5.1center of activity5.2anchor5.3void5.4gathering point5.5balance point5.6visual center5.7functional center5.8clear center5.9distributed center06Orientation9 primitives
6.1front6.2back6.3left6.4right6.5up6.6down6.7sun/light direction6.8view direction6.9cardinal orientation07Balance9 primitives
7.1active / restful7.2open / closed7.3light / dark7.4hard / soft7.5dense / sparse7.6warm / cool7.7symmetry / asymmetry7.8stable / dynamic7.9contrast / continuity08Material & light9 primitives
8.1daylight8.2shadow8.3air8.4wood8.5stone8.6metal8.7water8.8planting8.9color09Human fit9 primitives
9.1reach9.2visibility9.3comfort9.4wayfinding9.5clutter9.6accessibility9.7social distance9.8task fit9.9personal meaningEvidence boundary. Feng Shui has long historical and cultural traditions. OaSIs can use its spatial vocabulary as a design lens, while practical recommendations should be checked against direct observation, accessibility, daylight, circulation, environmental conditions, and occupant preference. Metaphysical claims are not converted into engineering measurements.