Barcoded indicators for quality management

A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by at least one product quality affecting parameter, said barcoded indicator comprising:

• a first barcode including a first plurality of barcode bars and at least one first colorable area,
• at least a second barcode including a second plurality of barcode bars and at least a second colorable area, and
• at least a third barcode including a third plurality of barcode bars and at least a third colorable area,
• said quality indicator being operative to provide separate indications of exceedance of at least two different thresholds relating to said at least one product quality affecting parameter,
• said first barcode being readable before exceedance of a first of said at least two different thresholds,
• said second barcode being unreadable before exceedance of said first of said at least two different thresholds, and
• upon exceedance of said first threshold of said at least two different thresholds said first barcode becomes unreadable as a result of coloring of at least a portion of said at least one first colorable area and generally simultaneously said at least a second barcode becomes readable as a result of coloring of at least a portion of said at least a second colorable area.