GIS product reliability analysis based fuzzy fault tree

The paper imports fuzzy fault tree into GIS product reliability analysis for the fist time. The paper discusses how GIS product reliability analysis uses fuzzy fault tree method, mainly researches two problems that is GIS product fuzzy fault tree construction and analysis step of GIS product fuzzy fault tree; uses example to adopt fuzzy fault tree method processing GIS product reliability analysis; because the technique considers not only GIS product random uncertainty but also GIS product fuzzy uncertainty, the result is precise, scientific and reasonable; finally summarizes up and points out the problems to need solving.