Abstract: A method and system for identifying exceptions, of a person/child behavior through scheduled behavior, using a personal communication device having at least one sensor attached to person/child body which provide location data and motion data. The method includes sampling measurements data for each sensor of the personal communication device, identifying atomic pattern of sampled measurements, the atomic pattern representing basic behavior of the person/child, identify location in which person has spent time using a clustering algorithm, create activity segmentation characterized by location, schedule, caregiver, or content derived from sensors measurements and atomic patterns and analyzing characteristics changes or combination thereof of activities in sequenced/complex activities in comparison to baseline, to identify exception which indicate of at least one of the following: changes at activity level, changes at emotional arousal level, unknown locations or unexpected locations based on schedule.

Abstract: A fastener for fastening a first element to a second element comprising: a first part; a second part fastenable to the first part via a first fastening mechanism; and a third part fastenable to the second part via a second fastening mechanism. The third part comprises at least one protruding member for inserting thereof to the second element for fastening the second element between the second and third parts. The first fastening mechanism is configured such that to open the fastening of the first part to the second part an external tool such as a key or a magnet should be applied.