Test students' ability to apply GIS-based multi-criteria decision analysis to identify optimal urban green roof sites by integrating and preprocessing spatial layers (structural capacity, solar exposure, stormwater runoff reduction potential, and accessibility), assigning suitability scores and weights, performing weighted overlay and sensitivity analysis, mapping and ranking candidate rooftops, and producing a concise justification and validation plan considering practical constraints (e.g., load limits, codes). Scope: undergraduate GIS skills, spatial data handling, basic statistics, and urban sustainability principles.