@prefix IAO: . @prefix bitbake: . @prefix dcterms: . @prefix owl: . @prefix pkg: . @prefix prov: . @prefix rdfs: . @prefix xsd: . bitbake:autotools a bitbake:BitBakeClass ; rdfs:label "autotools"@en ; rdfs:comment "GNU Autotools build system (./configure && make && make install)"@en ; bitbake:className "autotools" . bitbake:bbappendLayer a owl:ObjectProperty ; rdfs:label "bbappend from layer"@en ; IAO:0000115 "Associates a .bbappend file with the layer it comes from. Reveals cross-layer customization patterns."@en ; rdfs:domain bitbake:BbappendFile ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:Layer . bitbake:builtForMachine a owl:ObjectProperty ; rdfs:label "built for machine"@en ; IAO:0000115 "Associates an image with the target machine it was built for."@en ; rdfs:domain bitbake:Image ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:Machine . bitbake:className a owl:DatatypeProperty ; rdfs:label "class name"@en ; IAO:0000115 "The BitBake class name (e.g., 'autotools', 'cmake', 'meson', 'python3', 'systemd'). Identifies the upstream build system and available integration points."@en ; rdfs:domain bitbake:BitBakeClass ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:cmake a bitbake:BitBakeClass ; rdfs:label "cmake"@en ; rdfs:comment "CMake build system"@en ; bitbake:className "cmake" . bitbake:distroFeatures a owl:DatatypeProperty ; rdfs:label "distro features"@en ; IAO:0000115 "The DISTRO_FEATURES variable listing enabled distribution features (e.g., 'systemd', 'wayland', 'pam'). Space-separated list controlling conditional recipe behavior."@en ; rdfs:domain bitbake:Distro ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:distroName a owl:DatatypeProperty ; rdfs:label "distro name"@en ; IAO:0000115 "The distribution name (e.g., 'poky', 'nodistro') from the DISTRO variable."@en ; rdfs:domain bitbake:Distro ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:extendedBy a owl:ObjectProperty ; rdfs:label "extended by"@en ; IAO:0000115 "Associates a base recipe with .bbappend files that extend or override it. Critical for data science: reveals how downstream layers customize upstream recipes."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:BbappendFile . bitbake:go a bitbake:BitBakeClass ; rdfs:label "go"@en ; rdfs:comment "Go language build system"@en ; bitbake:className "go" . bitbake:imageName a owl:DatatypeProperty ; rdfs:label "image name"@en ; IAO:0000115 "The image recipe name (e.g., 'core-image-minimal', 'core-image-sato')."@en ; rdfs:domain bitbake:Image ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:inLayer a owl:ObjectProperty ; rdfs:label "in layer"@en ; IAO:0000115 "Associates a recipe with the OE layer it belongs to."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:Layer . bitbake:includesPackage a owl:ObjectProperty ; rdfs:label "includes package"@en ; IAO:0000115 "Associates an image with recipes it includes. Defines the package manifest for a deployed device."@en ; rdfs:domain bitbake:Image ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:BitBakeRecipe . bitbake:inheritsClass a owl:ObjectProperty ; rdfs:label "inherits class"@en ; IAO:0000115 "Associates a recipe with the BitBake class(es) it inherits via the 'inherit' directive. Reveals the build system (autotools, cmake, meson), integration patterns (systemd, update-rc.d), and language runtime (python3, go)."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:BitBakeClass . bitbake:kernelModule a bitbake:BitBakeClass ; rdfs:label "kernel module"@en ; rdfs:comment "Out-of-tree Linux kernel module build"@en ; bitbake:className "module" . bitbake:layer a owl:DatatypeProperty ; rdfs:label "layer"@en ; IAO:0000115 "The OE layer containing this recipe (e.g., 'meta-oe', 'poky/meta', 'meta-networking'). Used for data science to analyze layer composition and recipe provenance."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:layerCompatibility a owl:DatatypeProperty ; rdfs:label "layer compatibility"@en ; IAO:0000115 "The Yocto Project release compatibility string (e.g., 'scarthgap', 'nanbield') from LAYERSERIES_COMPAT, identifying which Yocto releases this layer is tested against."@en ; rdfs:domain bitbake:Layer ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:layerName a owl:DatatypeProperty ; rdfs:label "layer name"@en ; IAO:0000115 "The layer directory name (e.g., 'meta-openembedded', 'poky/meta')."@en ; rdfs:domain bitbake:Layer ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:layerPriority a owl:DatatypeProperty ; rdfs:label "layer priority"@en ; IAO:0000115 "The layer priority (from conf/layer.conf) determining precedence when multiple layers provide the same recipe. Higher priority layers override lower priority ones."@en ; rdfs:domain bitbake:Layer ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:integer . bitbake:licFilesChksum a owl:DatatypeProperty ; rdfs:label "LIC_FILES_CHKSUM"@en ; IAO:0000115 "License file checksum from LIC_FILES_CHKSUM variable, ensuring license text hasn't changed unexpectedly. Critical for embedded license compliance — build fails if checksums don't match, preventing silent license changes."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:machine a owl:DatatypeProperty ; rdfs:label "machine"@en ; IAO:0000115 "Target machine compatibility specification from COMPATIBLE_MACHINE variable. A regex pattern limiting which machines can build this recipe."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:machineArch a owl:DatatypeProperty ; rdfs:label "machine architecture"@en ; IAO:0000115 "The base architecture for this machine (e.g., 'arm', 'aarch64', 'x86_64')."@en ; rdfs:domain bitbake:Machine ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:machineName a owl:DatatypeProperty ; rdfs:label "machine name"@en ; IAO:0000115 "The machine identifier (e.g., 'qemuarm', 'beaglebone', 'raspberrypi4')."@en ; rdfs:domain bitbake:Machine ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:meson a bitbake:BitBakeClass ; rdfs:label "meson"@en ; rdfs:comment "Meson build system"@en ; bitbake:className "meson" . bitbake:packageFormat a owl:DatatypeProperty ; rdfs:label "package format"@en ; IAO:0000115 "The output package format from PACKAGE_CLASSES (e.g., 'package_ipk', 'package_rpm', 'package_deb')."@en ; rdfs:domain bitbake:Distro ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:pn a owl:DatatypeProperty ; rdfs:label "PN"@en ; IAO:0000115 "The package name (PN variable) — typically derived from the recipe filename before the version underscore."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:pr a owl:DatatypeProperty ; rdfs:label "PR"@en ; IAO:0000115 "The package revision (PR variable) — incremented when the recipe changes but source version doesn't."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:pv a owl:DatatypeProperty ; rdfs:label "PV"@en ; IAO:0000115 "The package version (PV variable) — typically derived from the recipe filename (pkg_1.2.3.bb -> PV=1.2.3)."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:python3 a bitbake:BitBakeClass ; rdfs:label "python3"@en ; rdfs:comment "Python 3 setuptools/flit/poetry build"@en ; bitbake:className "python3" . bitbake:rust a bitbake:BitBakeClass ; rdfs:label "rust"@en ; rdfs:comment "Rust/Cargo build system"@en ; bitbake:className "rust" . bitbake:section a owl:DatatypeProperty ; rdfs:label "section"@en ; IAO:0000115 "The recipe section or category (e.g., 'base', 'console/utils', 'devel', 'kernel'). Maps to the SECTION variable in the recipe."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:srcUri a owl:DatatypeProperty ; rdfs:label "SRC_URI"@en ; IAO:0000115 "Source URI(s) from the SRC_URI variable, indicating where to fetch source code (git://, http://, file://). Multiple SRC_URI entries may exist for patches and additional files. Critical for provenance — identifies the upstream source origin."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range xsd:string . bitbake:systemd a bitbake:BitBakeClass ; rdfs:label "systemd"@en ; rdfs:comment "systemd service integration"@en ; bitbake:className "systemd" . bitbake:targetsMachine a owl:ObjectProperty ; rdfs:label "targets machine"@en ; IAO:0000115 "Associates a recipe with the target machine(s) it is compatible with."@en ; rdfs:domain bitbake:BitBakeRecipe ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:Machine . bitbake:usesDistro a owl:ObjectProperty ; rdfs:label "uses distro"@en ; IAO:0000115 "Associates an image with the distribution configuration used to build it."@en ; rdfs:domain bitbake:Image ; rdfs:isDefinedBy bitbake: ; rdfs:range bitbake:Distro . bitbake:BbappendFile a owl:Class ; rdfs:label "BitBake Append File"@en ; IAO:0000115 "A .bbappend file in a layer that extends or overrides variables in a base .bb recipe, allowing customization without modifying the original recipe. Multiple .bbappend files from different layers are applied in layer priority order."@en ; rdfs:comment "A .bbappend file extending/overriding a recipe"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf prov:Entity . bitbake:Distro a owl:Class ; rdfs:label "Yocto Distribution"@en ; IAO:0000115 "A distribution configuration defining global policy choices: package format (ipk/rpm/deb), init system, default distro features, and toolchain settings. Named distros (e.g., poky, nodistro) determine the behavior applied to all recipes."@en ; rdfs:comment "A Yocto distribution configuration (distro.conf)"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf pkg:Distribution . bitbake:Image a owl:Class ; rdfs:label "Yocto Image"@en ; IAO:0000115 "A complete filesystem image recipe (e.g., core-image-minimal, core-image-sato) that specifies which packages to include in the final bootable image. Images are the top-level build target — they define the package manifest for a deployed device."@en ; rdfs:comment "A complete filesystem image produced by Yocto"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf prov:Entity . bitbake:Machine a owl:Class ; rdfs:label "Target Machine"@en ; IAO:0000115 "A machine configuration defining the target hardware (e.g., qemuarm, beaglebone, raspberrypi4) including architecture, kernel, bootloader, and device tree. Machine configs drive the cross-compilation toolchain selection and hardware-specific package variants."@en ; rdfs:comment "A Yocto target machine configuration"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf pkg:Architecture . bitbake:Layer a owl:Class ; rdfs:label "OE Layer"@en ; IAO:0000115 "An OpenEmbedded layer containing recipes, configuration, and classes, organized under a meta-* directory. Layers provide modularity and allow recipes to be overridden or extended via .bbappend files. Layer priority determines which recipe version wins when multiple layers provide the same recipe."@en ; rdfs:comment "An OpenEmbedded layer (meta-*)"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf pkg:Repository . bitbake:BitBakeClass a owl:Class ; rdfs:label "BitBake Class"@en ; IAO:0000115 "A BitBake class (.bbclass) providing shared build logic. Common classes include autotools, cmake, meson, python3, and systemd. Classes define standard build steps (configure, compile, install) for a particular build system or integration pattern. Critical for data science: the class reveals the upstream build system and integration capabilities."@en ; rdfs:comment "A build class inherited by recipes via the 'inherit' directive"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf owl:Thing . bitbake:BitBakeRecipe a owl:Class ; rdfs:label "Yocto Recipe"@en ; IAO:0000115 "A BitBake recipe (.bb file) defining source fetch, configuration, compilation, and installation steps for a package in the Yocto/OpenEmbedded build system. Recipes are the fundamental build unit, producing one or more output packages (ipk, rpm, or deb)."@en ; rdfs:comment "A BitBake recipe defining how to build a package"@en ; rdfs:isDefinedBy bitbake: ; rdfs:subClassOf pkg:SourcePackage . bitbake: a owl:Ontology ; rdfs:label "Yocto/OpenEmbedded Ontology"@en ; dcterms:abstract "Models the Yocto Project and OpenEmbedded build systems, including BitBake recipes (.bb files), .bbappend overrides, layers (meta-*), target machine configurations, source fetch URIs, and the image artifacts produced. Yocto is the dominant build system for custom embedded Linux distributions, used in automotive, industrial, and IoT applications." ; dcterms:created "2026-04-17"^^xsd:date ; dcterms:license ; dcterms:modified "2026-04-21"^^xsd:date ; rdfs:comment "Ontology for representing Yocto Project and OpenEmbedded packages, recipes, and build metadata"@en ; rdfs:isDefinedBy bitbake: ; rdfs:seeAlso ; owl:imports pkg: ; owl:priorVersion ; owl:versionIRI ; owl:versionInfo "0.7.0" .