Many decisions are taken by committees, for example in order to allocate resources. The decision criteria are difficult to express and the global situation is in general too complex for the participants to grasp it fully. In this article, we describe a decision process for the selection of job applicants where concept analysis is used to address these problems. Thanks to formal concept analysis and logical information systems, fair play people have the possibility to be fair to the applicants and to be consistent in their judgments across the whole decision process.