Getting product and service to the right ones at the right time is every field worker’s daily routine. When field workers are enabled with a CipherLab mobile computer with signature capture capability, proof of deliver and service can be obtained quickly and accurately. This paperless process includes the ability to instantly transmit the information to enterprise systems, providing immediate visibility for accounting and customers alike. During the process, the camera equipped on mobile computer could be used to record photos as visual evidences, and the Bluetooth mobile printer allows workers to instantly invoicing in the end. Customer service is consequently improved since they can see when the delivery and service is completed.