diff --git a/src/Ontology.NET/ExtensionMethods.fs b/src/Ontology.NET/ExtensionMethods.fs
new file mode 100644
index 0000000..5a77daa
--- /dev/null
+++ b/src/Ontology.NET/ExtensionMethods.fs
@@ -0,0 +1,25 @@
+namespace Ontology.NET.OBO
+
+
+open Ontology.NET
+
+
+[<AutoOpen>]
+module Extensions =
+
+    type OboOntology with
+
+        /// <summary>
+        /// Returns the corresponding Ontology from the OboOntology, with the term IDs as node keys, the terms as CvTerms as node data and the relations as edges.
+        /// </summary>
+        /// <remarks>If a relation points to a term that is not present in the given OboOntology, initializes them as new CvTerms but with name and ref = "&lt;missing&gt;".</remarks>
+        member this.ToOntology() =
+            Ontology.fromOboOntology this
+
+        /// <summary>
+        /// Returns the corresponding Ontology from the given OboOntology, with the term IDs as node keys, the terms as CvTerms as node data and the relations as edges.
+        /// </summary>
+        /// <param name="oboOnto">The OboOntology that serves as the basis for the respective Ontology.</param>
+        /// <remarks>If a relation points to a term that is not present in the given OboOntology, initializes them as new CvTerms but with name and ref = "&lt;missing&gt;".</remarks>
+        static member toOntology (oboOnto : OboOntology) =
+            oboOnto.ToOntology()
\ No newline at end of file
diff --git a/src/Ontology.NET/Ontology.NET.fsproj b/src/Ontology.NET/Ontology.NET.fsproj
index 5f0925a..e3bc0b5 100644
--- a/src/Ontology.NET/Ontology.NET.fsproj
+++ b/src/Ontology.NET/Ontology.NET.fsproj
@@ -32,10 +32,9 @@
     <Compile Include="OBO\OboProvider.fs" />
     <Compile Include="OntologyRelation.fs" />
     <Compile Include="Ontology.fs" />
+    <Compile Include="ExtensionMethods.fs" />
   </ItemGroup>
 
-  <ItemGroup />
-
   <PropertyGroup>
     <Authors>Heinrich Lukas Weil, Oliver Maus, F# open source contributors</Authors>
     <Description>A library to work with ontologies and ontology-related file formats.</Description>
diff --git a/src/Ontology.NET/Ontology.fs b/src/Ontology.NET/Ontology.fs
index 52525aa..f1a0451 100644
--- a/src/Ontology.NET/Ontology.fs
+++ b/src/Ontology.NET/Ontology.fs
@@ -62,6 +62,7 @@ type Ontology() =
     /// <summary>
     /// Takes a given OboOntology and returns the corresponding Ontology, with the term IDs as node keys, the terms as CvTerms as node data and the relations as edges.
     /// </summary>
+    /// <param name="oboOnto">The OboOntology that serves as the basis for the respective Ontology.</param>
     /// <remarks>If a relation points to a term that is not present in the given OboOntology, initializes them as new CvTerms but with name and ref = "&lt;missing&gt;".</remarks>
     static member fromOboOntology (oboOnto : OboOntology) =
 
@@ -1325,6 +1326,7 @@ type Ontology() =
     /// <summary>
     /// Returns the given Ontology as a collection of Triplets.
     /// </summary>
+    /// <param name="onto">The Ontology that serves as the informational basis for the Triplet collection.</param>
     /// <returns>A collection of Triplets in the form of SourceTerm * Relation * TargetTerm.</returns>
     static member toTriplets (onto : Ontology) =
         onto.ToTriplets()
\ No newline at end of file