In one example embodiment, an end device includes a touch screen configured to: display a plurality of icons that are respectively associated with a plurality of asset transaction entities, and receive a touch input with respect to at least two icons among the plurality of icons; a processor configured to translate the touch input into an asset transaction request that initiates execution of an asset transaction between at least two asset transaction entities among the plurality of asset transaction entities; and a transmitter configured to transmit the asset transaction request to a service provider.