%0 Conference Proceedings %F badouel:hal-01193279 %A Badouel, E. %A Hélouet, L. %A Morvan, C. %T Petri nets with semi-structured data %B 36th International Conference on Application and Theory of Petri Nets and Concurrency %S 36th International Conference on Application and Theory of Petri Nets and Concurrency %C Bruxelles, Belgium %X This paper proposes Structured Data Nets (SDN), a Petri net extension that describes transactional systems with data. In these nets, tokens are semi-structured documents. Each transition is attached to a query, guarded by patterns, (logical assertions on the contents of its preset) and transforms tokens. We define SDNs and their semantics. We then consider their formal properties: coverability of a marking, termination and soundness of transactions. Unrestricted SDNs are Turing complete , so these properties are undecidable. We thus use an order on documents , and show that under reasonable restrictions on documents and on the expressiveness of patterns and queries, SDNs are well-structured transition systems, for which coverability, termination and soundness are decidable %U https://hal.inria.fr/hal-01193279/document %8 June %D 2015