Sabado, Agosto 13, 2011

BIOMETRICS

THIS IS THE FLOWCHART DIAGRAM OF BIOMETRICS. . . 














BIOMETRICS
Biometrics is the automated method of recognizing a person based on a physiological or behavioral characteristic. Biometric technologies are becoming the foundation of an extensive array of highly secure identification and personal verification solutions.

Biometric technologies should be considered and evaluated giving full consideration to the following characteristics:
§  Universality: Every person should have the characteristic. People who are mute or without a fingerprint will need to be accommodated in some way.
§  Uniqueness: Generally, no two people have identical characteristics. However, identical twins are hard to distinguish.
§  Permanence: The characteristics should not vary with time. A person's face, for example, may change with age.
§  Collectibility: The characteristics must be easily collectible and measurable.
§  Performance: The method must deliver accurate results under varied environmental circumstances.
§  Acceptability: The general public must accept the sample collection routines. Nonintrusive methods are more acceptable.
§  Circumvention: The technology should be difficult to deceive.



THE ADVANTAGES AND DISADVANTAGES OF BIOMETRICS. . . .

The advantages of biometrics are the person is the key so you need never remember your card or key again. Each body part is unique and Biometrics uses your unique identity to enable a purchase activate something or unlock something. Biometrics encompasses Voice, Vein, Eye, Fingerprint, Facial recognition and more.

The disadvantages are numerous however: criminals have been known to remove fingers to open biometric locks, Biometrics requires a lot of data to be kept on a person, these systems are not always reliable as human beings change over time if you are ill; eyes puffy, voice hoarse or your fingers are rough from laboring for example it maybe more difficult for the machinery to identify you accurately. Every time you use Biometrics you are being tracked by a database bringing up a range of privacy issues. The final disadvantage is the expense and technical complexity of such systems.




Disadvantages of a biometric system.
·         The finger print of those people working in Chemical industries are often affected. Therefore these companies should not use the finger print mode of authentication.
·         It is found that with age, the voice of a person differs. Also when the person has flu or throat infection the voice changes or if there there are too much noise in the environment this method maynot authenticate correctly. Therefore this method of verification is not workable all the time
·         For people affected with diabetes, the eyes get affected resulting in differences.
·         Biometrics is an expensive security solution.
·         Advantages of Biometrics :

* Increase security - Provide a convenient and low-cost additional tier of security.

* Reduce fraud by employing hard-to-forge technologies and materials. For e.g.Minimise the opportunity for ID fraud, buddy punching.

* Eliminate problems caused by lost IDs or forgotten passwords by using physiological attributes. For e.g. Prevent unauthorised use of lost, stolen or "borrowed" ID cards.

* Reduce password administration costs.

* Replace hard-to-remember passwords which may be shared or observed.

* Integrate a wide range of biometric solutions and technologies, customer applications and databases into a robust and scalable control solution for facility and network access

* Make it possible, automatically, to know WHO did WHAT, WHERE and WHEN!

* Offer significant cost savings or increasing ROI in areas such as Loss Prevention or Time & Attendance.

* Unequivocally link an individual to a transaction or event.

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What is “Law”?
It is possible to describe law as the body of official rules and regulations,
generally found in constitutions, legislation, judicial opinions,
and the like, that is used to govern a society and to control the behaviour of its members, so Law is a formal mechanism of social control.
Legal systems are particular ways of establishing and maintaining social order.



Defining Ethics
I have been blogging about ethics for some time so it is reasonable to ask what is my perspective on ethics? The term ethics is derived from the Greek word ethikos which itself is derived from the
Greek word ethos, meaning custom or character.
In philosophy, ethical behavior is that which is “good.”
The field of ethics or moral philosophy involves developing, defending, and recommending concepts of right and wrong behavior. These concepts do not change as one’s desires and motivations change. They are not relative to the situation. They are immutable.
In a general sense, ethics (or moral philosophy) addresses fundamental questions such as: How should I live my life? That question leads to others such as: What sort of person should I strive to be? What values are important? What standards or principles should I live by? There are various ways to define “ethics.” The simplest may be to say that ethics deals with “right” and “wrong.” However, it is diffi cult to judge what may be right or wrong in a particular situation without some frame of reference.





Computer technology
There is no doubt that computer technology has had a great impact on society and also brought many technical developments with it. It has brought many changes to the way we live as individual as well as members of societies and organizations. It has had major effects and changes on the economy, health, education, industry, agriculture and many other fields. The ability of computers in gathering, processing, presenting and sending large amount of information has had major changes in the way large organizations as well individuals organize their lives. Computers are at work, in schools and hospitals and many other places. We therefore need to have some basic understanding of how they function and the language associated with them.
For people with not enough technical knowledge on computers, the amount of technical knowledge involved in the field of computer technology is overwhelming. It is also a field that changes fast enough for people to keep pace with. This site has been organized to help you understand, in a simple way, the concepts involved and language used in computer technology.