59 lines
2.6 KiB
Text
59 lines
2.6 KiB
Text
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let d = import "core.ncl" in
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{
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lift_out_practice = d.make_node {
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id = "lift-out-practice",
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name = "Component Lift-Out",
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pole = 'Yang,
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level = 'Practice,
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description = "A component developed inside a host project is extracted as an independent peer project when it passes the four-criterion test: orthogonal concern, plurality of consumers, divergent release cadence, and path-agnostic config. The extracted project registers in ontoref before any code moves.",
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adrs = ["adr-016-component-lift-out-pattern"],
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},
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lift_readiness_practice = d.make_node {
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id = "lift-readiness",
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name = "Lift Readiness Evaluation",
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pole = 'Spiral,
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level = 'Practice,
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description = "Before extracting a component, four criteria are evaluated: (1) orthogonal concern — the component's domain is not the host's domain; (2) consumer plurality — at least two distinct callers exist or are imminent; (3) release cadence divergence — the component's lifecycle does not match the host's; (4) config path-agnostic — the component can receive its config from any caller without importing host infrastructure.",
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adrs = ["adr-016-component-lift-out-pattern"],
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},
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premature_decomposition_tension = d.make_node {
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id = "premature-decomposition",
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name = "Premature Decomposition Tension",
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pole = 'Yin,
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level = 'Tension,
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description = "Extracting a component before it has proven orthogonality and multiple consumers creates coordination overhead without autonomy benefits. The four-criterion gate is the safeguard.",
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},
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host_coupling_tension = d.make_node {
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id = "host-coupling",
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name = "Host Coupling Tension",
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pole = 'Yin,
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level = 'Tension,
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description = "A component that imports host-project infrastructure (config loaders, schema registries, workspace crates) cannot be an independent peer. Host coupling is the primary blocker for lift-out and must be severed at extraction time.",
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},
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edges = [
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d.make_edge {
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from = "lift-readiness",
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to = "lift-out-practice",
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kind = 'FlowsTo,
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note = "readiness evaluation gates the extraction decision",
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},
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d.make_edge {
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from = "premature-decomposition",
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to = "lift-out-practice",
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kind = 'TensionWith,
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note = "extracting too early defeats the purpose",
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},
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d.make_edge {
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from = "host-coupling",
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to = "lift-readiness",
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kind = 'LimitedBy,
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note = "coupling to host infrastructure fails criterion 4",
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},
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],
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}
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