diff --git a/Yavsc/ApiControllers/DjProfileApiController.cs b/Yavsc/ApiControllers/DjProfileApiController.cs
index f0471658..92b95e78 100644
--- a/Yavsc/ApiControllers/DjProfileApiController.cs
+++ b/Yavsc/ApiControllers/DjProfileApiController.cs
@@ -1,5 +1,3 @@
-
-
 namespace Yavsc.ApiControllers
 {
     using Models;
@@ -12,4 +10,4 @@ namespace Yavsc.ApiControllers
             
         }
     }
-}
+}
\ No newline at end of file
diff --git a/Yavsc/ApiControllers/MusicalPreferencesApiController.cs b/Yavsc/ApiControllers/MusicalPreferencesApiController.cs
index b75931fe..60c3a5b3 100644
--- a/Yavsc/ApiControllers/MusicalPreferencesApiController.cs
+++ b/Yavsc/ApiControllers/MusicalPreferencesApiController.cs
@@ -46,7 +46,6 @@ namespace Yavsc.Controllers
         }
 
         // PUT: api/MusicalPreferencesApi/5
-        [HttpPut("{id}")]
         public IActionResult PutMusicalPreference(string id, [FromBody] MusicalPreference musicalPreference)
         {
             if (!ModelState.IsValid)
diff --git a/Yavsc/Controllers/ActivityController.cs b/Yavsc/Controllers/ActivityController.cs
index ac072680..2f5010b5 100644
--- a/Yavsc/Controllers/ActivityController.cs
+++ b/Yavsc/Controllers/ActivityController.cs
@@ -94,6 +94,9 @@ namespace Yavsc.Controllers
             }
         }
 
+      
+
+
         // GET: Activity/Details/5
         public IActionResult Details(string id)
         {
diff --git a/Yavsc/Controllers/DoController.cs b/Yavsc/Controllers/DoController.cs
index f24c2e42..d1d81bfb 100644
--- a/Yavsc/Controllers/DoController.cs
+++ b/Yavsc/Controllers/DoController.cs
@@ -49,7 +49,6 @@ namespace Yavsc.Controllers
             ViewBag.HasConfigurableSettings = (userActivity.Does.SettingsClassName != null);
             if (ViewBag.HasConfigurableSettings) 
             ViewBag.SettingsClassControllerName = Startup.ProfileTypes[userActivity.Does.SettingsClassName].Name;
-        
             return View(userActivity);
         }
 
diff --git a/Yavsc/Models/ApplicationDbContext.cs b/Yavsc/Models/ApplicationDbContext.cs
index 17c5d4ec..f3a310c4 100644
--- a/Yavsc/Models/ApplicationDbContext.cs
+++ b/Yavsc/Models/ApplicationDbContext.cs
@@ -1,4 +1,4 @@
-
+
 using System;
 using System.Linq;
 using System.Threading.Tasks;
diff --git a/Yavsc/Models/Booking/MusicalPreference.cs b/Yavsc/Models/Booking/MusicalPreference.cs
index 0670bdd6..97e491a6 100644
--- a/Yavsc/Models/Booking/MusicalPreference.cs
+++ b/Yavsc/Models/Booking/MusicalPreference.cs
@@ -17,9 +17,6 @@ namespace Yavsc.Models.Booking
     
     [Required]
     public long TendencyId {get; set; }
-    
-
-
   } 
 
 }
diff --git a/Yavsc/Models/Booking/Profiles/DjPerformerProfile.cs b/Yavsc/Models/Booking/Profiles/DjPerformerProfile.cs
new file mode 100644
index 00000000..18613e15
--- /dev/null
+++ b/Yavsc/Models/Booking/Profiles/DjPerformerProfile.cs
@@ -0,0 +1,15 @@
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using Yavsc.Models.Workflow;
+
+namespace Yavsc.Models.Booking
+{
+    public class DjPerformerProfile : SpecializationSettings
+    {
+        public string SoundCloudId { get; set; }
+
+        [InverseProperty("OwnerProfile")]
+        public virtual List<MusicalPreference> SoundColor { get; set; }
+        
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Models/Booking/Profiles/FormationPerformerProfile.cs b/Yavsc/Models/Booking/Profiles/FormationPerformerProfile.cs
new file mode 100644
index 00000000..66b86c49
--- /dev/null
+++ b/Yavsc/Models/Booking/Profiles/FormationPerformerProfile.cs
@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using Yavsc.Models.Workflow;
+
+namespace Yavsc.Models.Booking.Profiles
+{
+    public class FormationPerformerProfile
+    {
+        [InverseProperty("WorkingFor")]
+        public virtual List<CoWorking> CoWorking { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Models/Booking/Profiles/MusicianPerformerProfile.cs b/Yavsc/Models/Booking/Profiles/MusicianPerformerProfile.cs
new file mode 100644
index 00000000..191344ea
--- /dev/null
+++ b/Yavsc/Models/Booking/Profiles/MusicianPerformerProfile.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using Yavsc.Models.Workflow;
+
+namespace Yavsc.Models.Booking
+{
+    public class MusicianPerformerProfile : PerformerProfile
+    {
+        [InverseProperty("Profile")]
+        public virtual List<InstrumentRating> Instrumentation {
+            get; set;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Models/Booking/Profiles/StarPerformerProfile.cs b/Yavsc/Models/Booking/Profiles/StarPerformerProfile.cs
new file mode 100644
index 00000000..1dc1a077
--- /dev/null
+++ b/Yavsc/Models/Booking/Profiles/StarPerformerProfile.cs
@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using Yavsc.Models.Workflow;
+
+namespace Yavsc.Models.Booking.Profiles
+{
+    public class StarPerformerProfile : PerformerProfile
+    {
+        [InverseProperty("OwnerProfile")]
+        public virtual List<MusicalPreference> SoundColor { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Models/Workflow/Activity.cs b/Yavsc/Models/Workflow/Activity.cs
index 38842598..35d1bdc4 100644
--- a/Yavsc/Models/Workflow/Activity.cs
+++ b/Yavsc/Models/Workflow/Activity.cs
@@ -53,7 +53,6 @@ namespace Yavsc.Models
         /// </summary>
         [Range(0,100)]
         public int Rate { get; set; }
-
         [DisplayAttribute(Name="SettingsClass")]
         public string SettingsClassName { get; set; }
     }
diff --git a/Yavsc/Models/Workflow/Specialization.cs b/Yavsc/Models/Workflow/Specialization.cs
new file mode 100644
index 00000000..47b2773b
--- /dev/null
+++ b/Yavsc/Models/Workflow/Specialization.cs
@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Yavsc.Models.Workflow
+{
+    public abstract class SpecializationSettings
+    {
+        [Key]
+        public long UserActivityId { get; set; }
+
+        [ForeignKey("UserActivityId")]
+        public virtual UserActivity Context { get; set; }
+
+    }
+}
\ No newline at end of file
diff --git a/Yavsc/Models/Workflow/UserActivity.cs b/Yavsc/Models/Workflow/UserActivity.cs
index 5ba30d04..4c413c32 100644
--- a/Yavsc/Models/Workflow/UserActivity.cs
+++ b/Yavsc/Models/Workflow/UserActivity.cs
@@ -19,6 +19,5 @@ namespace Yavsc.Models.Workflow
 
         [Range(0,100)]
         public int Weight { get; set; }
-
     }
 }
\ No newline at end of file
diff --git a/Yavsc/Views/Activity/Index.cshtml b/Yavsc/Views/Activity/Index.cshtml
index 2af9ee9b..78a4f758 100644
--- a/Yavsc/Views/Activity/Index.cshtml
+++ b/Yavsc/Views/Activity/Index.cshtml
@@ -61,6 +61,9 @@
                 </text>
         }
         </td>
+        <td>
+            @Html.DisplayFor(modelItem => item.Children)
+        </td>
         <td>
             <a asp-action="Edit" asp-route-id="@item.Code">Edit</a> |
             <a asp-action="Details" asp-route-id="@item.Code">Details</a> |
diff --git a/Yavsc/Views/Do/Create.cshtml b/Yavsc/Views/Do/Create.cshtml
index 4de66bab..7835aa54 100644
--- a/Yavsc/Views/Do/Create.cshtml
+++ b/Yavsc/Views/Do/Create.cshtml
@@ -17,6 +17,7 @@
             <label asp-for="DoesCode" class="col-md-2 control-label"></label>
             <div class="col-md-10">
                 <select asp-for="DoesCode" asp-items=@ViewBag.DoesCode class ="form-control"></select>
+
                 <span asp-validation-for="DoesCode" class="text-danger" />
             </div>
         </div>
diff --git a/Yavsc/Views/Do/Edit.cshtml b/Yavsc/Views/Do/Edit.cshtml
index a4f94a6f..1b82b58c 100644
--- a/Yavsc/Views/Do/Edit.cshtml
+++ b/Yavsc/Views/Do/Edit.cshtml
@@ -27,4 +27,4 @@
 
 <div>
     <a asp-action="Index">Back to List</a>
-</div>
\ No newline at end of file
+</div>
diff --git a/Yavsc/Views/Shared/PerformerProfile.cshtml b/Yavsc/Views/Shared/PerformerProfile.cshtml
new file mode 100644
index 00000000..dccb92aa
--- /dev/null
+++ b/Yavsc/Views/Shared/PerformerProfile.cshtml
@@ -0,0 +1,42 @@
+@model PerformerProfile
+
+<div class="performer @(Model.Active?"active":"inactive")">
+     @if (Model.Performer != null) {
+    @if (Model.Performer.Avatar != null) {
+               <img src="~/Avatars/@Model.Performer.Avatar" alt="avatar"> 
+         }
+             @Model.Performer.UserName 
+
+     <ul>
+         
+         <li> @SR["Rating"]: @Model.Rate % </li>
+        @if (Model.MinDailyCost != null) {
+            <li>@SR["MinDailyCost"]: @Model.MinDailyCost&euro;</li>
+        }
+        @if (Model.MinDailyCost != null) {
+            <li>@SR["MaxDailyCost"]: @Model.MaxDailyCost&euro;</li>
+        }
+        @if (Model.WebSite!=null) { 
+            <li>@SR["WebSite"]: @Model.WebSite</li>
+        }
+        @if (Model.DoesBlog) {
+            <li>  <a asp-controller="Blogspot" asp-action="UserPosts" 
+            asp-route-id="@Model.Performer.UserName">@SR["His blog"]</a>
+            </li>
+        }
+        @if (!string.IsNullOrEmpty(
+            Model.Performer.DedicatedGoogleCalendar))
+            {
+            <li>   @SR["Exposes his Google calendar!"]
+            </li>
+            }
+        @if (Model.Performer.Devices?.Count>0)
+            {
+            <li>   @SR["Uses the mobile application, and receives push notifications"]
+            </li>
+            }
+
+    </ul>
+   
+     }
+</div>
diff --git a/Yavsc/project.lock.json b/Yavsc/project.lock.json
index 8ce84367..fa392e09 100644
--- a/Yavsc/project.lock.json
+++ b/Yavsc/project.lock.json
@@ -199,12 +199,12 @@
           "Zlib.Portable.Signed": "1.11.0"
         },
         "compile": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         },
         "runtime": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         }
       },
       "Google.Apis.Core/1.11.1": {
@@ -2823,7 +2823,7 @@
         }
       }
     },
-    "DNX,Version=v4.5.1/debian.8-x86": {
+    "DNX,Version=v4.5.1/win7-x86": {
       "Antlr/3.4.1.9004": {
         "type": "package",
         "compile": {
@@ -3020,12 +3020,12 @@
           "Zlib.Portable.Signed": "1.11.0"
         },
         "compile": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         },
         "runtime": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         }
       },
       "Google.Apis.Core/1.11.1": {
@@ -4125,6 +4125,9 @@
         },
         "runtime": {
           "lib/dnx451/Microsoft.AspNet.Server.Kestrel.dll": {}
+        },
+        "native": {
+          "runtimes/win7-x86/native/libuv.dll": {}
         }
       },
       "Microsoft.AspNet.Server.WebListener/1.0.0-rc1-final": {
@@ -5644,7 +5647,7 @@
         }
       }
     },
-    "DNX,Version=v4.5.1/debian.8-x64": {
+    "DNX,Version=v4.5.1/win7-x64": {
       "Antlr/3.4.1.9004": {
         "type": "package",
         "compile": {
@@ -5841,12 +5844,12 @@
           "Zlib.Portable.Signed": "1.11.0"
         },
         "compile": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         },
         "runtime": {
-          "lib/net45/Google.Apis.dll": {},
-          "lib/net45/Google.Apis.PlatformServices.dll": {}
+          "lib/net45/Google.Apis.PlatformServices.dll": {},
+          "lib/net45/Google.Apis.dll": {}
         }
       },
       "Google.Apis.Core/1.11.1": {
@@ -6946,6 +6949,9 @@
         },
         "runtime": {
           "lib/dnx451/Microsoft.AspNet.Server.Kestrel.dll": {}
+        },
+        "native": {
+          "runtimes/win7-x64/native/libuv.dll": {}
         }
       },
       "Microsoft.AspNet.Server.WebListener/1.0.0-rc1-final": {
@@ -8735,7 +8741,7 @@
     },
     "MarkdownDeep-av.NET/1.5.4": {
       "type": "package",
-      "sha512": "89nafNRqR3hqKU0rQzHb+BGpoxjImo7pfOQj8vNALB3MloBye0jqMv9eqpKP+QIDLtMS8gHf7uP1kAIkhsOg+Q==",
+      "sha512": "vefP0tYO2IGOw0iuZt5mtTuu+IFaqjMaoo+GLk4nyhHibfYGFr4glG8JxvxIpHialgwtmeK4F+9HUiKnBXIhbA==",
       "files": [
         "lib/dnxcore50/MarkdownDeep.dll",
         "lib/MonoAndroid10/MarkdownDeep.dll",
@@ -10984,7 +10990,7 @@
     "System.Reflection.Metadata/1.1.0": {
       "type": "package",
       "serviceable": true,
-      "sha512": "a8VsRm/B0Ik1o5FumSMWmpwbG7cvIIajAYhzTTy9VB9XItByJDQHGZkQTIAdsvVJ6MI5O3uH/lb0izgQDlDIWA==",
+      "sha512": "RLIE4sSt2zngMLuqM6YmxBH99mTumtT4DNZE4+msfEaInUP5iCLQT+BHPl+2cjSAP1pdALyAjLB8RtCB+WGGWQ==",
       "files": [
         "lib/dotnet5.2/System.Reflection.Metadata.dll",
         "lib/dotnet5.2/System.Reflection.Metadata.xml",