Validating RDF Data: a Community Survey

Professional Background of Respondents (2025 vs 2022)

Main Application Domains for SHACL or ShEx

Years of Experience with RDF Validation/Shape Technologies by Professional Background

Familiarity with RDF Validation Technologies

Comparison of Shape Creation Methods (2025 vs 2022)

Frequency of Working with RDF Shape Languages by Professional Background

Frequency of Using SPARQL-based Constraint Components

Motivation for Using SPARQL-based Constraint Components

Adapting Validation Processes for Evolving Knowledge Graphs

Performance Concerns in Relation to Graph Size at Validation Time

Usage of Advanced SHACL Features Based on Overall Usage Frequency

Tools Used for Shape Generation/Extraction (2025 vs 2022)

SHACL Validation Software/Framework Usage by Professional Background

Usage of Advanced SHACL Features by Professional Background

Typical RDF Graph Size at Validation Time by Professional Background

Main Perceived Advantages of SHACL/ShEx

Reported Issues, Limitations, and Desired Enhancements

Features to Improve Usefulness of Validation Reports

Desired Future Extensions of SHACL Standard

Question 1: What is your professional background?

Question 2: How many years of experience do you have with RDF validation/shape technologies?

Question 3: Do you work with different graph models or RDF standards? Please select all that apply.

Question 4: What RDF validation technologies do you have experience with? Please select all that apply.

Question 5: How frequently do you work with RDF shape languages?

Question 6: What are the main data domains you use SHACL or ShEx for? Please select all that apply.

Question 7: In your projects, how do SHACL and ShEx affect data quality and consistency?

Question 8: If you had to choose one language for future projects, which would it be?

Question 9: When validating, how many distinct classes and properties does your data graph usually have?

Question 10: When validating, how large is your RDF graph usually?

Question 11: If you are a user of SHACL, which validation software/framework do you use?

Question 12: If you are a user of ShEx, which validation software/framework do you use?

Question 13: What do you consider the main advantages of SHACL/ShEx in your work or projects? Please select all that apply.

Question 14: Have you encountered any limitations or challenges when using SHACL/ShEx?

Question 15: Have you worked with evolving or dynamic RDF knowledge graphs? If yes, how do you adapt your validation processes?

Question 16: How often do you use SHACL-core constraint components (for example sh:mincount etc)?

Question 17: Do you use SPARQL-based constraint components?

Question 18: If you use SPARQL-based constraint components, please specify the reason:

Question 19: Is the information provided by the validation report sufficient for your use cases?

Question 20: Which of the SHACL advanced features do you use?

Question 21: Which extensions of the SHACL standard do you wish for?

Question 22: How do you generate validating shapes SHACL/ShEx?

Question 23: Which tools or method do you use to extract/create validating shapes (SHACL/ShEx)?

Question 24: How many shapes do you usually generate?

Question 25: How large is your ontology usually in the context of shape extraction?

Question 26: How many distinct predicate types are present in your RDF graph usually?

Question 27: How large is your RDF graph usually in the context of shape extraction?

Question 28: Do you generate shapes for the entire graph or only for some portions?

Question 29: What are the shortcomings you experienced when working with SHACL/ShEx? Please select all that apply.

Question 30: What features would improve the usefulness of validation reports? Please select all that apply.