Contingent Valuation Method. A method that attempts to "objectively" measure the dollar value of changes in environmental quality; often uses questionnaires and other surveys that ask people what they would pay for various environmental improvements.
Common term used to refer to the Card Code feature. To help reduce fraud in the card-not-present environment, credit card companies have introduced a card code program. Visa calls this code Card Verification Value (CVV); MasterCard calls it Card Validation Code (CVC); Discover calls it Card ID (CID). The card code is a three- or four- digit security code that is printed on the back of cards. The number typically appears at the end of the signature panel. This program helps validate that a genuine card is being used during a transaction. To help combat fraud, card-not-present merchants should always enter a card code (if on the card) when processing an authorization. The Gateway will compare the card code against the code on file with the card-issuing bank. Results of this comparison will show in the transaction approval code. By using the card code results along with the Address Verification Service (AVS), you can make more informed decisions about whether to accept transactions.
A method used to ensure that a credit card being used in a purchase is in the possession of its owner.
Cardholder Verification Method. A means of identifying that the person presenting the card is genuine. This may, for example, be performed by use of a PIN or signature in a retail outlet or by PIN at an ATM.
Cardholder Verification Method. The means by which the presenter of the card may be identified as genuine.
Cardholder Verification Method. The means to verify the authenticity of a cardholder
Control Volume Method. A method to divide a large and complex product into small volumes to which conservation laws (mass, momentum, energy) are applied to obtain a set of equations that describe the flow and can be solved numerically.