Database.com Metadata API Developer's Guide - Salesforce.com

Metadata TypesPermissionSetFieldeditablefieldreadableField TypebooleanstringbooleanDescriptionRequired. Indicates whether the field can be edited by theusers assigned to this permission set (true) or not (false).Required. The API name of the field (such asWarehouse__c.Description__c).Indicates whether the field can be read by the users assignedto this permission set (true) or not (false).PermissionSetObjectPermissionsPermissionSetObjectPermissions represents the object permissions for a permission set. Use one of these elements for eachpermission.FieldallowCreateallowDeleteallowEditallowReadmodifyAllRecordsobjectviewAllRecordsField TypebooleanbooleanbooleanbooleanbooleanstringbooleanDescriptionRequired. Indicates whether the object referenced by theobject field can be created by the users assigned to thispermission set (true) or not (false).Required. Indicates whether the object referenced by theobject field can be deleted by the users assigned to thispermission set (true) or not (false).Required. Indicates whether the object referenced by theobject field can be edited by the users assigned to thispermission set (true) or not (false).Required. Indicates whether the object referenced by theobject field can be viewed by the users assigned to thispermission set (true) or not (false).Required. Indicates whether the object referenced by theobject field can be viewed, edited, or deleted by the usersassigned to this permission set (true) or not (false),regardless of the sharing settings for the object. This includesprivate records (records with no parent object). This is similarto the “Modify All Data” user permission, but limited to theindividual object level.Required. The API name of the object (such asWarehouse__c).Required. Indicates whether the object referenced by theobject field can be viewed by the users assigned to thispermission set (true) or not (false), regardless of the sharingsettings for the object. This includes private records (recordswith no parent object). This is similar to the “View All Data”user permission, but limited to the individual object level.PermissionSetUserPermissionPermissionSetUserPermission represents an app or system permission for a permission set. Use one of these elements for eachpermission.128