1. How does biometric technology works?
Biometric technology works by recording the key points of various physical traits of human body in the form of templates. These templates are used in future to identify or verify an authorized user.
2. Why biometric devices are becoming popular for recognition and verification?
Biometric devices are easy to install, use-friendly and available with ease. Moreover, they offer more accurate results than any other recognition or verification devices. One can easily integrate these devices with the existing infrastructure in an organization.
3. What is the difference between behavioural and physical biometric?
Behavioral biometric refers to the technique of collecting and storing behavioural traits of a person. These include voice recognition, keystroke dynamics, handwriting and signature analysis. On the other hand, physical or physiological biometric implies to use of physical traits like hand and finger geometry, veins, eye and ear structures and fingerprints.
4. How identification differs from verification?
Biometric technology based identification is the process of providing the identity to a user by comparing his or her live biometric sample with many templates stored in the database. On the other hand, biometric based verification is the process of confirming the identity of a user by comparing his or her live biometric sample with a particular record in the database.
5. What is the different between one-to-one and one-to-many?
One-to-one refers to the process of verifying an identity, whereas one-to-many is to search for an identity in the database. In other words, the former is similar to verification, while the latter is similar to identification.
6. How do biometric fingerprints differ from criminal fingerprints with police?
Biometric fingerprints are prepared using only specific key points of one’s fingers, whereas those possessed by police or law enforcement body are exact images of the fingers.
7. Can an organization share biometric samples with other?
Not at all! Every organization has its own database of biometric samples, which is not shared with any similar or dissimilar organizations. For instance, one bank will never share its biometric samples with other bank or any other organization. While registering with different organizations, you will be required to submit fresh biometric records.
8. What is the probability of biometric samples getting stolen?
There is no probability of any such thing to happen. The reason behind this is because only the templates of main details of a physical attributes are captured by a biometric technology device. Thus, stealing these templates and misusing them is not possible.
9. What if another user develops moulds and casts of my fingerprints?
Any such user will not be able to use your biometric fingerprints or any other biometric samples on a cast to make an unauthorized access. Apart from fine details of fingers, a biometric device is also capable of differentiating a human body and a plastic cast on the basis of heat, blood flow and other characteristics.
10. What if I have an injured or dry finger?
In the case of injuries, you are advised either to wait for the injury to heal or use the secondary finger for submitting the biometric samples. In case of dry fingers, you can be asked to induce moisture on the fingers by breathing or rubbing, to get quality biometric fingerprints details.
11. What if I cut my finger after submitting biometric sample?
No issue arises, if you have a small cut on your finger. But, if your finger is permanently disabled, you can repeat the process of submitting biometric samples using the secondary finger.
12. How safe is biometric technology in terms of health?
Biometric technology is a safe technology, as far as health is concerned. Various components used by the biometric devices are also used in routine life, for example digital cameras and sensors. Thus, these devices have no side-effects on the body parts exposed to them.
13. What is the response time of a biometric system?
The response time of a biometric system is dependent upon two significant factors. First factor is the power endowed to the system for processing, comparing and matching the data. Second factor is the number of templates stored in the database, against which the live sample is required to be compared.
14. What is the database capability of a biometric system?
The biometric system can hold the number of templates varying between 10 and 3,000. The performance of a biometric system is not considerably hampered by its database capacity. Also, one can expand the database capacity of a biometric device by integrating more space for holding new templates.
15. Are the biometric devices standardized?
In the beginning, biometric devices were not standardized and were vendor-specific. However, with growing popularity of biometric technology and their potential in avoiding terrorist attacks, the standard organizations like ISO and ANSI have started setting up standards for these devices. Standardization facilitates the manufacturers as well as the end-users to comply with most beneficial products.
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