8]workapproachinwhichfeatureprecedence,toolapproachdirection,worktogroupoperationsforindividualfeaturesintosetups.3.2.prehensivedefinitionofafixturingrequirementintermsofthephysical,tolerance,constraining,affordability,collisionprevention,andusabilityrequirementslistedinTable1,andthecreationofafixturelayoutplan.Thelayoutplanrepresentsthefirstpartofthefixturesolutiontotheserequirements,andspecifiesthepositionofthelocatingandclampingpointsontheworkpiece.Manylayoutplanningapproachesfeatureverification,particularlywithregardtotheconstrainingrequirements.Typicallythisverificationformspartofafeedbackloopthatseekstooptimizethelayoutplanwithrespecttotheserequirements.Techniquesusedtosupportfixtureplanningarenowdiscussedwithrespecttofixturerequirementdefinition,layoutplanning,andlayoutoptimization.
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