| Florio and Linnebo, Introduction to Constructional Ontology, 2024 | Separates constructors, constructor inputs, the source account's construction process, and output identity. | Adopt the construction test and adapt the source process to FPF method and work distinctions. Section 4.3 asks which system acts as constructor, which method it enacts, which entities are inputs, which work it performs, and how that work occurrence contributes to output or relation identity. Row creation and assertion remain non-constructive unless the direct rule declares the corresponding work constitutive. |
| Borgo and Righetti, Towards Applied Constructional Ontology, 2025 | Tests how constructional analysis could reconstruct existing foundational ontologies and exposes conceptual, structural, completeness, and consistency questions; it is an early applied step, not a finished recipe. | Adapt as current improvement pressure with that maturity boundary. Checklist 9 and the physical case require a recoverable construction choice instead of accepting an inherited relation representation or taxonomy. |
| Partridge, BORO Ontology, C-FORS 2025 presentation | Presents a 4D extensional, categorical, and constructional ontology with an ontology-evolution method. | Adapt as a current ontological comparison under a boundary. Sections 4.3 and 5.1 use temporal extent and constituting occurrences when the direct identity rule needs them. FPF rejects universal 4D identity, unrestricted composition, and BORO's category architecture for this pattern. |
| Almeida, Guizzardi, Sales, and Fonseca, gUFO, 2026 preprint | Provides a current foundational-ontology implementation with differentiated relational-aspect and reification patterns. | Adapt its ontological distinctions as a current comparison; reject its OWL implementation as proof of FPF occurrence existence or identity. Section 4.4 separates direct relation, assertion, reifier, and optional relator without importing the complete category hierarchy. |
| OntoUML Relator, specification lineage | Models a relator as a dependent truth-maker for a material relation. | Reject as current competitive SoTA; retain and adapt as a lineage comparison for material relators. Section 4.4 permits a relator only when the direct material ontology identifies the relator, its dependence relations to the participants, and its occurrence-identity rule. |