initial

Domain/Contact.cs

+namespace Domain
+{
+    public class Contact
+    {
+        public string ContactValue { get; set; }
+
+        public Contact(Person person, ContactType contactType)
+        {
+            Person = person;
+            ContactType = contactType;
+        }
+        
+        public Person Person { get; set; }
+        public ContactType ContactType { get; set; }
+    }
+}
\ No newline at end of file

Domain/ContactType.cs

+using System.Collections.Generic;
+
+namespace Domain
+{
+    public class ContactType
+    {
+        public string ContactTypeValue { get; set; }
+
+        public List<Contact> Contacts { get; set; } = new List<Contact>();
+        
+    }
+}
\ No newline at end of file

Domain/Domain.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.0</TargetFramework>
+    </PropertyGroup>
+
+</Project>

Domain/Person.cs

+using System;
+using System.Collections.Generic;
+
+namespace Domain
+{
+    public class Person
+    {
+        public string FirstName { get; set; }
+        public string LastName { get; set; }
+
+        public List<Contact> Contacts { get; set; } = new List<Contact>();
+    }
+}
\ No newline at end of file

Prax_2018fall_daytime.sln

@@ -2,6 +2,8 @@
 Microsoft Visual Studio Solution File, Format Version 12.00
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConsoleApp", "ConsoleApp\ConsoleApp.csproj", "{817E622D-30ED-426F-BA78-C34D66E0CDB1}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Domain", "Domain\Domain.csproj", "{EC36D18E-BAAD-445E-B60A-3F34642B96E2}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -12,5 +14,9 @@ Global
 		{817E622D-30ED-426F-BA78-C34D66E0CDB1}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{817E622D-30ED-426F-BA78-C34D66E0CDB1}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{817E622D-30ED-426F-BA78-C34D66E0CDB1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EC36D18E-BAAD-445E-B60A-3F34642B96E2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EC36D18E-BAAD-445E-B60A-3F34642B96E2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EC36D18E-BAAD-445E-B60A-3F34642B96E2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EC36D18E-BAAD-445E-B60A-3F34642B96E2}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal