A binary model uses a query statement or logical expressions (i.e., Relational,
Boolean operation) to produce a binary (true or false) map that separates map features
that satisfy the criteria from a composite maps.
Therefore, binary model could be call “Boolean overlay / Sieve mapping or Sieve
analysis” in the a multi-criteria GIS-based analysis approach that allows participants to
relatively value contributions of an area (land availability, ecosystem integrity, land use
conflicts, etc.) to the obtainment of goals and objectives fulfilling the project purpose.
9