Static Analysis of Recursive SHACL
SHACL (Shapes Constraint Language) expresses constraints on RDF data by means of so-called shapes. Its central service is validation: verifying whether a data graph complies with a SHACL document. But so far, there are no static analysis services to compare documents. In this paper, we study the following problem: decide whether all graphs that validate one SHACL document also validate another. Unlike previous works that have considered the implication of shape expressions only, we consider documents comprising (recursive) shape definitions and targets. We show that implication (a.k.a. containment) is undecidable under the supported and the stable model semantics, even for the fragment th...
| Authors | Anouk Oudshoorn, Magdalena Ortiz, Mantas Simkus |
|---|---|
| Primary category | cs.LO |
| Published | 4 May 2026 |
| Last updated at source | 4 May 2026 |
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