diff --git a/Tags/TagOps.cs b/Tags/TagOps.cs
new file mode 100644
index 0000000..30b6b13
--- /dev/null
+++ b/Tags/TagOps.cs
@@ -0,0 +1,98 @@
+using Xunit;
+using Newtonsoft.Json.Linq;
+using FluentAssertions;
+using System.Collections.Generic;
+
+
+namespace raven_integration
+{
+
+    public class TagOps
+    {
+
+        /// <summary>
+        /// 
+        /// </summary>
+        [Fact]
+        public async void TagCRUDProcessingWorks()
+        {
+
+            var TestName = "TagCRUDProcessingWorks";
+            var WidgetRunNameStart = Util.Uniquify(TestName);
+            var TagNameStart = Util.Uniquify("crud-tag-test-") + "-";//ensure this run gets it's own unique tags
+
+            List<string> InitialTagsList = new List<string>();
+            InitialTagsList.Add(TagNameStart + "red");
+            InitialTagsList.Add(TagNameStart + "orange");
+            InitialTagsList.Add(TagNameStart + "yellow");
+            InitialTagsList.Add(TagNameStart + "green");
+            InitialTagsList.Add(TagNameStart + "blue");
+            InitialTagsList.Add(TagNameStart + "indigo");
+            InitialTagsList.Add(TagNameStart + "violet");
+
+            List<string> UpdateTagsList = new List<string>();
+            //Newly added tags
+            UpdateTagsList.Add(TagNameStart + "crimson");
+            UpdateTagsList.Add(TagNameStart + "amber");
+            UpdateTagsList.Add(TagNameStart + "saffron");
+            UpdateTagsList.Add(TagNameStart + "emerald");
+            UpdateTagsList.Add(TagNameStart + "azure");
+            UpdateTagsList.Add(TagNameStart + "cobalt");
+            UpdateTagsList.Add(TagNameStart + "magenta");
+
+            //maintains these tags
+            UpdateTagsList.Add(TagNameStart + "red");
+            UpdateTagsList.Add(TagNameStart + "blue");
+
+            //Removes these tags by omission
+            //orange, yellow, green, indigo, violet
+
+
+            dynamic w = new JObject();
+            w.name = Util.Uniquify(WidgetRunNameStart);
+            //Tags 
+            dynamic InitialTags = new JArray();
+            foreach (string s in InitialTagsList)
+            {
+                InitialTags.Add(s);
+            }
+            w.tags = InitialTags;
+
+            ApiResponse a = await Util.PostAsync("Widget", await Util.GetTokenAsync("manager", "l3tm3in"), w.ToString());
+            Util.ValidateDataReturnResponseOk(a);
+            long WidgetId = a.ObjectResponse["data"]["id"].Value<long>();
+
+            //HERE TODO: validate the repository LIST ROUTE of tags contains the ones above and that their refcount is 1
+
+
+            //UPDATE Tags 
+            dynamic UpdateTags = new JArray();
+
+            //Adds these tags
+            foreach (string s in UpdateTagsList)
+            {
+                UpdateTags.Add(s);
+            }
+            //update Widget and put to server 
+            w.concurrencyToken = a.ObjectResponse["data"]["concurrencyToken"].Value<uint>();
+            w.tags = UpdateTags;
+            ApiResponse PUTTestResponse = await Util.PutAsync("Widget/" + WidgetId.ToString(), await Util.GetTokenAsync("manager", "l3tm3in"), w.ToString());
+            Util.ValidateHTTPStatusCode(PUTTestResponse, 200);
+
+
+            //Verify the tags collection remaining
+            //HERE TODO: validate the repository LIST ROUTE of tags contains the ones above and that their refcount is 1
+
+
+
+
+        }
+
+
+//TODO: Deliberate concurrency violation tests here
+
+
+        //==================================================
+
+    }//eoc
+}//eons