observation

METPO:1001000 · CLASS · REVIEWED

A data-collection or measurement context in which trait-relevant qualities of organisms, samples, or conditions are recorded.

Observation measurement upper-class context

DOI-backed upper-ontology context graph for observations as assay or measurement outputs about material entities and qualities. Child observation records are deprecated relation/value carriers and are not expanded as mechanistic trait nodes here.

Observation measurement upper-class context Interactive directed graph showing evidence-backed causal relationships for observation.

Edge evidence

  • assay or measurement process produces data item METPO:2000202

    Assays and measurements generate data items.

    • DOI:10.1371/journal.pone.0154556 the output of an assay is typically a data item Supports assay outputs as data items.
  • data item records measured quality

    Observation data record a measured quality.

    • DOI:10.1371/journal.pone.0154556 measuring its glucose concentration Supports measurement outputs as records of qualities.
  • observation is about material entity

    Observation records are about material entities or samples and their qualities.

    • DOI:10.1371/journal.pone.0154556 can be about any material entity Supports observations and study outputs as about material entities.
  • observation has context geographic location

    Observation data items require contextual information about time and place of measurement.

    • DOI:10.3233/sw-223096 An observation data item requires a data structure to encompass the contextual information about the time and place etc. of a measurement.
  • assay or measurement process has specified input material entity with evaluant role

    An assay has a material entity with evaluant role as specified input.

    • DOI:10.3233/sw-223096 OBI: assay and has_specified_input some (material entity and has role some evaluant role); generalized, not microbe-specific.
  • assay or measurement process has output measurement datum

    An assay produces a measurement datum as output of the observation process.

    • DOI:10.3233/sw-223096 SOSA Result and IAO measurement datum are comparable outputs of an observation process.
  • planned process has specified input sample

    A planned process takes material entities such as samples as specified inputs.

    • DOI:10.3233/sw-223096 OBI has specified input/output pertain to planned process with material entities (for assays) as targets.
  • metadata recorded in MIxS reporting standard

    Sample/source-environment metadata is recorded using MIxS metadata elements.

    • DOI:10.1007/978-1-0716-3838-5_20 MIxS consists of a number of metadata elements that describe a particular characteristic of the sample or its source environment.
  • FAIR principles requires metadata unique identifier

    FAIR requires each object or dataset to have a unique identifier and rich metadata.

    • DOI:10.3389/fcimb.2024.1384809 FAIR requires each FAIR object or dataset have a unique identifier and be described with rich metadata.

Provenance

Source
METPO (2025-11-25)
Definition source
DOI:10.1371/journal.pone.0154556

kg-microbe context

Matched 1 kg-microbe node via direct_metpo.

  • METPO:1001000 [-0.035, -0.074, +0.047, +0.096, …]

512-dim DeepWalkSkipGramEnsmallen embedding from kg-microbe (2026-04-25).

Nearest neighbors in embedding space

Top-8 cosine-similar METPO traits from the 2026-04-25 deepwalk (512-D).

Curation history

  1. · SEEDED_FROM_METPO · seed_from_metpo

    imported from data/raw/metpo.owl (CLASS)

  2. · CURATED_UPPER_CONTEXT · codex

    Added definition, DOI-backed evidence, and a measurement-context graph for observation; deprecated observation child records were reviewed as relation/value carriers rather than standalone mechanistic traits.

  3. · GROUND_CAUSAL_PREDICATES · claude

    Grounded 1 causal-edge predicate_id field(s) via mappings/predicate_grounding.tsv (METPO:2000202×1).

  4. · ENRICH_CAUSAL_GRAPH · claude

    Added 6 evidence-backed generic edges (9 new nodes) from the deep-research report.