Abstract: A multi-merchant portal that enables a user to access e-commerce stores is provided. Each e-commerce store has respective merchant categories browsable by the user at a customer device through the portal, each merchant category comprising products available for purchase from a respective merchant. In response to receiving a request from the customer device to switch access of the user browsing a selected merchant category of the first merchant in a first e-commerce store, to a second e-commerce store, the portal determines a system category corresponding to the selected merchant category using mapping data mapping merchant categories to system categories and then determines a destination merchant category of the second merchant in the second e-commerce store corresponding to the determined system category using mapping data mapping the system categories to the merchant categories. The portal switches user's access to the destination merchant category in the second e-commerce store.

Abstract: An item purchase system may include a user device configured to receive an item purchase request from a user and transmit the item purchase request, and the refrigerator configured to display the item purchase request in response to receiving the item purchase request and place an order for the item requested to be purchased according to an input by the user or another user.

Abstract: A computer-implemented method for border control is described. The method involves interaction between a user computing device and a management server. The following actions are performed at the user computing device. A registration process is performed that involving captures user information and a stored biometric of the user from a user travel document. A first fresh user biometric is also captured at the user computing device for verification to register the user at the management server. At least one check step is then performed during passage through a border control area, this check step comprising capturing a second fresh user biometric for verification and generation of a time limited code for completing the check step. Suitable apparatus to implement this method is also described.

Abstract: A computer-implemented method for border control is described. The method involves interaction between a user computing device and a management server. The following actions are performed at the user computing device. A registration process is performed that involving captures user information and a stored biometric of the user from a user travel document. A first fresh user biometric is also captured at the user computing device for verification to register the user at the management server. At least one check step is then performed during passage through a border control area, this check step comprising capturing a second fresh user biometric for verification and generation of a time limited code for completing the check step. Suitable apparatus to implement this method is also described.

Abstract: A multi-merchant portal that enables a user to access e-commerce stores is provided. Each e-commerce store has respective merchant categories browsable by the user at a customer device through the portal, each merchant category comprising products available for purchase from a respective merchant. In response to receiving a request from the customer device to switch access of the user browsing a selected merchant category of the first merchant in a first e-commerce store, to a second e-commerce store, the portal determines a system category corresponding to the selected merchant category using mapping data mapping merchant categories to system categories and then determines a destination merchant category of the second merchant in the second e-commerce store corresponding to the determined system category using mapping data mapping the system categories to the merchant categories. The portal switches user's access to the destination merchant category in the second e-commerce store.

Abstract: An item purchase system may include a user device configured to receive an item purchase request from a user and transmit the item purchase request, and the refrigerator configured to display the item purchase request in response to receiving the item purchase request and place an order for the item requested to be purchased according to an input by the user or another user.