Systematic clinical data collection must match contemporary reality as a whole. The aim of these guidelines is to promote convergence in the publications on verification of homeopathic symptoms. The proposed data collection system has to be flexible and accessible manually or by information technology. The ultimate objective of this proposal is to use an automatic information system allowing collection, recording, extraction, processing, interpretation, evaluation and communication. This system must allow verification of symptoms from remedy provings as well as clinical symptoms, which will never originate from pathogenetic trials. Clinical data collection and classification systems must respect the ‘essence’ of homeopathic practice, the law of similars.