Abstract: Embodiments of the invention provide a means for verifying that a person using a bank card at a point-of-sale merchant location is in fact a person authorized to use the bank card. In one embodiment of the invention, verification may involve communicating with the mobile device 103 associated with the person authorized to use the bank card. The person authorized to use the bank card may be required to send verification data to the bank card verification system via the mobile device to confirm a purchase. The bank card verification system may not authorize the purchase if the proper verification data is not received from the mobile device. In another embodiment, the bank card verification system may be configured to determine a proximity of the mobile device to the merchant point-of-sale location to verify the purchase.

Abstract: Embodiments of the invention provide a means for verifying that a person using a bank card at a point-of-sale merchant location is in fact a person authorized to use the bank card. In one embodiment of the invention, verification may involve communicating with the mobile device 103 associated with the person authorized to use the bank card. The person authorized to use the bank card may be required to send verification data to the bank card verification system via the mobile device to confirm a purchase. The bank card verification system may not authorize the purchase if the proper verification data is not received from the mobile device. In another embodiment, the bank card verification system may be configured to determine a proximity of the mobile device to the merchant point-of-sale location to verify the purchase.

Abstract: Embodiments of the invention provide a means for verifying that a person using a bank card at a point-of-sale merchant location is in fact a person authorized to use the bank card. In one embodiment of the invention, verification may involve communicating with the mobile device 103 associated with the person authorized to use the bank card. The person authorized to use the bank card may be required to send verification data to the bank card verification system via the mobile device to confirm a purchase. The bank card verification system may not authorize the purchase if the proper verification data is not received from the mobile device. In another embodiment, the bank card verification system may be configured to determine a proximity of the mobile device to the merchant point-of-sale location to verify the purchase.

Abstract: Embodiments of the invention provide a means for verifying that a person using a bank card at a point-of-sale merchant location is in fact a person authorized to use the bank card. In one embodiment of the invention, verification may involve communicating with the mobile device 103 associated with the person authorized to use the bank card. The person authorized to use the bank card may be required to send verification data to the bank card verification system via the mobile device to confirm a purchase. The bank card verification system may not authorize the purchase if the proper verification data is not received from the mobile device. In another embodiment, the bank card verification system may be configured to determine a proximity of the mobile device to the merchant point-of-sale location to verify the purchase.

Abstract: A distributed computer system incorporating multiple computer processes enables a client computer process to request execution of a remote procedure on a server computer process even when the server computer process does not support a current version of the client computer process. A version map is utilized by the client computer process while requesting a remote procedure to format the request to a version supported by the server computer process, thus permitting client and server computer processes coresident in a distributed computer system to be upgraded independently while ensuring backward-compatibility with earlier versions.

Abstract: A distributed computer system incorporating multiple computer processes enables a client computer process to request execution of a remote procedure on a server computer process even when the server computer process does not support a current version of the client computer process. A version map is utilized by the client computer process while requesting a remote procedure to format the request to a version supported by the server computer process, thus permitting client and server computer processes coresident in a distributed computer system to be upgraded independently while ensuring backward-compatibility with earlier versions.