diff --git a/Pipeline-UML-Sequence-Diagram.md b/Pipeline-UML-Sequence-Diagram.md
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+@startuml
+
+actor User
+
+User -> Pipeline: triggers
+Pipeline -> "Cargo Check": triggers
+Pipeline -> "Cargo Clippy": triggers
+Pipeline -> "Cargo Test": triggers
+Pipeline -> "Check Fmt": triggers
+
+"Cargo Check" -> "Cargo Check": Clone Repo
+"Cargo Check" -> "Cargo Check": Run 'cargo check'
+"Cargo Check" --> Pipeline: response
+
+"Cargo Clippy" -> "Cargo Clippy": Clone Repo
+"Cargo Clippy" -> "Cargo Clippy": Run 'cargo clippy'
+"Cargo Clippy" --> Pipeline: response
+
+"Cargo Test" -> "Cargo Test": Clone Repo
+"Cargo Test" -> "Cargo Test": Run 'cargo test'
+"Cargo Test" --> Pipeline: response
+
+"Check Fmt" -> "Check Fmt": Clone Repo
+"Check Fmt" -> "Check Fmt": Run 'nix fmt'
+"Check Fmt" --> Pipeline: response
+
+Pipeline --> User: response
+
+@enduml
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