The expansion of online retail format and the increased use of the internet for tracking of logistics has created the need for linking online transactions and physical products. A smart tag is one such technology which has been widely providing the solutions to link this gap. Commonly used smart tags are QR code, Electronic article surveillance (EAS) and RFID tags. A smart tag has an advantage of having the wide range of application over traditional bar codes. QR codes are not need to be ... Read more