diff --git a/MyShop/MyShop.Core/Models/Product.cs b/MyShop/MyShop.Core/Models/Product.cs
new file mode 100644
index 0000000..b65bc5b
--- /dev/null
+++ b/MyShop/MyShop.Core/Models/Product.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MyShop.Core.Models
+{
+    public class Product
+    {
+        public string Id { get; set; }
+
+        [StringLength(20)]
+        [DisplayName("Product Name")]
+        public string Name { get; set; }
+        public string Description { get; set; }
+
+        [Range(0,1000)]
+        public decimal Price { get; set; }
+        public string Category { get; set; }
+        public string Image { get; set; }
+
+        public Product() {
+            this.Id = Guid.NewGuid().ToString();
+        }
+    }
+}
diff --git a/MyShop/MyShop.Core/MyShop.Core.csproj b/MyShop/MyShop.Core/MyShop.Core.csproj
index e6e54ce..640f655 100644
--- a/MyShop/MyShop.Core/MyShop.Core.csproj
+++ b/MyShop/MyShop.Core/MyShop.Core.csproj
@@ -31,6 +31,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
     <Reference Include="System.Core" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -40,6 +41,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Models\Product.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
diff --git a/MyShop/MyShop.DataAccess.InMemory/MyShop.DataAccess.InMemory.csproj b/MyShop/MyShop.DataAccess.InMemory/MyShop.DataAccess.InMemory.csproj
index c9150aa..3f0648a 100644
--- a/MyShop/MyShop.DataAccess.InMemory/MyShop.DataAccess.InMemory.csproj
+++ b/MyShop/MyShop.DataAccess.InMemory/MyShop.DataAccess.InMemory.csproj
@@ -32,6 +32,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.Runtime.Caching" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
@@ -40,7 +41,14 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="ProductRepository.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\MyShop.Core\MyShop.Core.csproj">
+      <Project>{9b029460-6f4e-46ae-9b88-08c5fe08c0a4}</Project>
+      <Name>MyShop.Core</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
 </Project>
\ No newline at end of file
diff --git a/MyShop/MyShop.DataAccess.InMemory/ProductRepository.cs b/MyShop/MyShop.DataAccess.InMemory/ProductRepository.cs
new file mode 100644
index 0000000..a1e78b8
--- /dev/null
+++ b/MyShop/MyShop.DataAccess.InMemory/ProductRepository.cs
@@ -0,0 +1,75 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Runtime.Caching;
+using MyShop.Core;
+using MyShop.Core.Models;
+
+namespace MyShop.DataAccess.InMemory
+{
+    public class ProductRepository
+    {
+        ObjectCache cache = MemoryCache.Default;
+        List<Product> products = new List<Product>();
+
+        public ProductRepository() { 
+            products = cache["products"] as List<Product>;
+
+            if (products == null)
+            {
+                products = new List<Product>();
+            }
+        }
+
+        public void Commit() {
+            cache["products"] = products;
+        }
+
+        public void Insert(Product p) {
+            products.Add(p);
+        }
+
+        public void Update(Product product) {
+            Product productToUpdate = products.Find(p => p.Id == product.Id);
+
+            if (productToUpdate != null) {            
+                productToUpdate = product;
+            }
+            else {
+                throw new Exception("Product not found");
+            }
+        }
+
+        public Product Find(string Id) {
+            Product product = products.Find(p => p.Id == Id);
+
+            if (product != null)
+            {
+                return product;
+            }
+            else
+            {
+                throw new Exception("Product not found");
+            }
+        }
+
+        public IQueryable<Product> Collection() {
+            return products.AsQueryable();
+        }
+
+        public void Delete(string Id) {
+            Product productToDelete = products.Find(p => p.Id == Id);
+
+            if (productToDelete != null)
+            {
+                products.Remove(productToDelete);
+            }
+            else
+            {
+                throw new Exception("Product not found");
+            }
+        }
+    }
+}