{'fraction_non_alphanumeric': 0.02944507361268403, 'fraction_numerical': 0.0, 'mean_word_length': 5.225352112676056, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Towards modeling and simulating a multi-party negotiation protocol with colored Petri nets

E-contracting, i.e., establishing and enacting electronic contracts, has become important because of technological advances (e.g., the availability of web services) and more open markets. However, the establishment of an e-contract is complicated and error prone. There are multiple negotiation styles ranging from auctions to bilateral bargaining. This paper provides an approach for modeling multi-party negotiation protocols in colored Petri nets. It is shown how different negotiation styles can be modeled in a unified and consistent way. Moreover, CPN Tools is used to analyze the resulting colored Petri nets. Simulation can be used for both validation and performance analysis, while state-space analysis can be used to discover anomalies in various multi-part negotiation protocols.