Abstract
Non-functional requirements (NFRs), apparently, have different characteristics from their functional counterparts. The ways to develop conceptual models of NFRs, therefore, do not akin to the one for functional requirements (FRs). This paper proposes a method to analyze, specify and modeling non-functional requirements especially the ones that can be manifested as operational/functional features, in the context of translative model-driven development. Our method employs two analysis approaches: NFR framework and uses-cases approach accompanied with our proposed specification technique: scenario-based specification. Results from the scenario-based specification will be used as an insight for developing NFRs conceptual models. In here, we present the way to model a security concern of Voter Tracking System (VTS), a system to mark voters using handheld electronic device.