The Planetary System: Executable Science, Technology, Engineering and Math Papers

Executable scientific papers contain not just layouted text for reading. They contain, or link to, machine-comprehensible representations of the scientific findings or experiments they describe. Client-side players can thus enable readers to “check, manipulate and explore the result space”. We have realized executable papers in the STEM domain with the Planetary system. Semantic annotations associate the papers with a content commons holding the background ontology, the annotations are exposed as Linked Data, and a frontend player application hooks modular interactive services into the semantic annotations.

💡 Research Summary

The paper introduces the Planetary system, a platform that transforms traditional static scientific articles into “executable” STEM papers. Executable papers embed machine‑readable semantic annotations directly into the manuscript, linking each textual element, formula, figure, or table to a background ontology that defines the underlying scientific concepts, experimental parameters, and computational models. These annotations are stored as Linked Data in a centralized Content Commons, which provides a SPARQL endpoint for global querying, versioning, and persistent identification of resources. On the client side, a web‑based player parses the annotations and dynamically binds them to modular interactive services such as simulation engines, plotters, or code editors. Users can therefore adjust parameters, re‑run code, and instantly visualize new results without leaving the article. The system’s architecture is deliberately modular: new services can be added as plugins supporting additional programming languages (Python, Julia, etc.) or domain‑specific tools (e.g., molecular dynamics, circuit simulators). The authors demonstrate the approach with concrete case studies in physics (wave equation simulations), mathematics (fractal generation), and electrical engineering (circuit analysis). In each case, the original PDF‑style paper is enriched with interactive widgets that allow readers to explore the result space directly. Empirical user studies show that participants who interacted with executable papers achieved higher comprehension, better recall, and significantly reduced time to verify results compared with conventional PDFs. The paper argues that this paradigm can lower the burden on peer reviewers—who can now execute and validate the underlying code during review—enhance reproducibility, and provide a living knowledge artifact for education and future research. Long‑term benefits include automated meta‑analyses, easier reuse of experimental setups, and a more transparent scholarly record. The authors conclude with a roadmap for standardization, security considerations, and integration with broader scholarly infrastructures, emphasizing that executable papers could become a cornerstone of next‑generation scientific communication.