Pérez-Espés, CristinaJiménez, José María MorenoWimmer, Maria A.Wimmer, Maria A.Janssen, MarijnMacintosh, AnnScholl, Hans JochenTambouris, Efthimios2018-10-122018-10-122013978-3-88579-615-2https://dl.gi.de/handle/20.500.12116/17273In the last decade, a number of e-participation experiences have been collected based on the use of information and communication technologies (ICT). These projects have made a contribution to the revitalisation of democracy by increasing transparency in governance and creating new political spaces for communication and participation. Whilst different studies have evaluated the overall success of e-participation experiences, few studies have analysed their impact and added value. The authors of this paper stress the importance of evaluating e-participation experiences along three factors: Efficiency (doing things correctly); Efficacy (achieving goals) and Effectiveness (doing what is right). A framework for evaluating these three impact values is currently being developed. The paper at hand digs into efficacy and presents a set of attributes and indicators for the evaluation of the efficacy of e-participation. These indicators - as part of the overall evaluation framework for efficiency, efficacy and effectiveness - have been applied to a real-life e-participation project that utilised the cognitive democracy experience known as e-Cognocracy. This project was implemented in the municipality of Cadrete (Zaragoza), Spain.enE-ParticipationEvaluationEffectivenessEfficacyEfficiencyEcognocracyText/Conference Paper1617-5468