might point towards values that seem somewhat distant from the one originally designed for. A concern for these values in the evaluation stage is necessary, though, since it will enable researchers to provide more extensive accounts of how the devices and services operate in a wider context. Any of these various considerations might make HCI researchers revisit their original design. For this reason, the iterative process remains important. Nevertheless, these considerations may also suggest to HCI researchers that other experts from other disciplines need to participate in evaluation. A further goal of this stage might be then for HCI researchers to identify what expertise outside of their domain may be required.