This document discusses palm vein technology for biometric identification. It begins with an introduction to the need for secure personal identification and an overview of different biometric technologies. It then explains that palm vein technology works by scanning the vein patterns in a person's palm and comparing it to a stored database record. The document outlines how the palm vein recognition system works, its applications, advantages like security and ease of use, and disadvantages like external factors affecting scans. It concludes that palm vein technology provides a convenient and highly secure identification method.