diff --git a/NetChris.Core/Patterns/IUnitOfWork.cs b/NetChris.Core/Patterns/IUnitOfWork.cs
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+++ b/NetChris.Core/Patterns/IUnitOfWork.cs
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+using System.Threading;
+using System.Threading.Tasks;
+
+namespace NetChris.Core.Patterns;
+
+/// <summary>
+/// Presents a unit of work interface to coordinate a unit-of-work pattern operation against a data store.
+/// </summary>
+/// <remarks>
+/// <para>
+/// There is no prescribed implementation of this of course.  However the primary use of this will be to wrap the operations
+/// of an Entity Framework DbContext.  And even though the DbContext's SaveChanges/Async operations constitute a unit
+/// of work in and of themselves, it's important to have a separate handle on the over-arching unit of work for:
+/// <list type="bullet">
+/// <item>Having an abstraction to use for testing in concert with repository abstractions.</item>
+/// <item>Handle the common exceptions that can occur when saving changes to the database, and then wrap them in well-known exceptions.</item>
+/// <item>Allow the ability to save/commit the unit of work without needing to reference the DbContext</item>
+/// </list>
+/// </para>
+/// </remarks>
+public interface IUnitOfWork
+{
+    /// <summary>
+    /// Commit the unit of work
+    /// </summary>
+    /// <param name="cancellationToken">The cancellation token</param>
+    /// <returns>A task that represents the asynchronous save operation. The task result contains the number of state entries written to the database.</returns>
+    Task<int> SaveChangesAsync(CancellationToken cancellationToken = default);
+}
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