diff --git a/UML/classdiagram.png b/UML/classdiagram.png
index 1b154c1d40bac4fc580e7fe2d5649a248aaa2ba3..ed1df16bcbaf738c320de83b41060a9e627e4974 100644
Binary files a/UML/classdiagram.png and b/UML/classdiagram.png differ
diff --git a/UML/classdiagram.uxf b/UML/classdiagram.uxf
index 3168a8f535546cd3b5241eb6ef376d0312d0c6d5..59e57160992a98e87e4aacdc5b3e53a27d4d5f6d 100644
--- a/UML/classdiagram.uxf
+++ b/UML/classdiagram.uxf
@@ -1,4 +1,4 @@
-<diagram program="umletino" version="15.1"><zoom_level>4</zoom_level><help_text>Space for diagram notes</help_text><element><id>UMLClass</id><coordinates><x>40</x><y>243</y><w>260</w><h>116</h></coordinates><panel_attributes>ActivitiesService
+<diagram program="umletino" version="15.1"><zoom_level>11</zoom_level><help_text>Space for diagram notes</help_text><element><id>UMLClass</id><coordinates><x>22</x><y>550</y><w>715</w><h>319</h></coordinates><panel_attributes>ActivitiesService
 --
 --
 + addNoteCreateActivity(userId: string, roomSession: RoomSession, note: Note): void
@@ -16,15 +16,15 @@
 + calculateVideoPoints(activities: Activity[]): int
 + calculateBrowserPoints(activities: Activity[]): int
 + calculateWhiteboardPoints(activities: Activity[]): int
-+ calculateNotePoints(activities: Activity[]): int</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>460</x><y>439</y><w>180</w><h>32</h></coordinates><panel_attributes>RoleAssignmentService
++ calculateNotePoints(activities: Activity[]): int</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1177</x><y>1089</y><w>495</w><h>88</h></coordinates><panel_attributes>RoleAssignmentService
 --
 --
 + determineRole(sessionId:number, userId: string): void
-+ assignRole(sessionId:number):Promise&lt;RoleAssignmentDto[]&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>540</x><y>479</y><w>180</w><h>32</h></coordinates><panel_attributes>ModeAssignmentService
++ assignRole(sessionId:number):Promise&lt;RoleAssignmentDto[]&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1397</x><y>1199</y><w>495</w><h>88</h></coordinates><panel_attributes>ModeAssignmentService
 --
 --
 + determineMode(sessionId:number): void
-+ assignMode(sessionId:number): Promise&lt;ModeAssignment[]&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>156</x><y>623</y><w>72</w><h>68</h></coordinates><panel_attributes>Activity
++ assignMode(sessionId:number): Promise&lt;ModeAssignment[]&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>341</x><y>1595</y><w>198</w><h>187</h></coordinates><panel_attributes>Activity
 --
 + id: number
 + user: string
@@ -35,7 +35,7 @@
 + noteId: number
 + timestamp: Date
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>208</x><y>739</y><w>92</w><h>56</h></coordinates><panel_attributes>RoomSession
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>484</x><y>1914</y><w>253</w><h>154</h></coordinates><panel_attributes>RoomSession
 --
 + id: number
 + room: Room
@@ -44,14 +44,14 @@
 + users: Collection &lt;RoomSessionUser&gt;
 + activities: Collection &lt;Activity&gt;
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>276</x><y>631</y><w>76</w><h>44</h></coordinates><panel_attributes>RoomSessionUser
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>671</x><y>1617</y><w>209</w><h>121</h></coordinates><panel_attributes>RoomSessionUser
 --
 + id: number
 + roomSession: RoomSession
 + userId: string
 + name: string
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>32</x><y>227</y><w>712</w><h>308</h></coordinates><panel_attributes>Services</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>136</x><y>587</y><w>488</w><h>344</h></coordinates><panel_attributes>Entities</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>408</x><y>635</y><w>92</w><h>60</h></coordinates><panel_attributes>SessionPoints
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>0</x><y>506</y><w>1958</w><h>847</h></coordinates><panel_attributes>Services</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>286</x><y>1496</y><w>1342</w><h>946</h></coordinates><panel_attributes>Entities</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1034</x><y>1628</y><w>253</w><h>165</h></coordinates><panel_attributes>SessionPoints
 --
 + id: number
 + roomSessionUser: RoomSessionUser
@@ -61,16 +61,16 @@
 + whiteboardPoints: number
 + notePoints: number
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>212</x><y>687</y><w>40</w><h>60</h></coordinates><panel_attributes>lt=-
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>495</x><y>1771</y><w>110</w><h>165</h></coordinates><panel_attributes>lt=-
 m1=1
 m2=0...n
-references ^</panel_attributes><additional_attributes>10;130;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>284</x><y>671</y><w>36</w><h>76</h></coordinates><panel_attributes>lt=-
+references ^</panel_attributes><additional_attributes>10;130;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>693</x><y>1727</y><w>99</w><h>209</h></coordinates><panel_attributes>lt=-
 m1=1
 m2=0...n
-contains ^</panel_attributes><additional_attributes>10;170;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>348</x><y>643</y><w>68</w><h>20</h></coordinates><panel_attributes>lt=-
+contains ^</panel_attributes><additional_attributes>10;170;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>869</x><y>1650</y><w>187</w><h>55</h></coordinates><panel_attributes>lt=-
 m1=1
 m2=1
-has &gt;</panel_attributes><additional_attributes>10;20;150;20</additional_attributes></element><element><id>UMLClass</id><coordinates><x>204</x><y>839</y><w>92</w><h>76</h></coordinates><panel_attributes>Room
+has &gt;</panel_attributes><additional_attributes>10;20;150;20</additional_attributes></element><element><id>UMLClass</id><coordinates><x>473</x><y>2189</y><w>253</w><h>209</h></coordinates><panel_attributes>Room
 --
 + id: number
 + name: string
@@ -82,44 +82,44 @@ has &gt;</panel_attributes><additional_attributes>10;20;150;20</additional_attri
 + notes = new Collection&lt;Note&gt;(this)
 + whiteboardCanvas
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>248</x><y>791</y><w>24</w><h>56</h></coordinates><panel_attributes>lt=&lt;&lt;&lt;&lt;-
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>594</x><y>2057</y><w>66</w><h>154</h></coordinates><panel_attributes>lt=&lt;&lt;&lt;&lt;-
 m1=1
 m2=0...n
-has ^</panel_attributes><additional_attributes>10;120;10;10</additional_attributes></element><element><id>UMLClass</id><coordinates><x>512</x><y>743</y><w>96</w><h>44</h></coordinates><panel_attributes>Roles
+has ^</panel_attributes><additional_attributes>10;120;10;10</additional_attributes></element><element><id>UMLClass</id><coordinates><x>1320</x><y>1925</y><w>264</w><h>121</h></coordinates><panel_attributes>Roles
 --
 + id: number
 + roleName: string
 + userId: string
 + roomSession: RoomSession
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>520</x><y>835</y><w>96</w><h>40</h></coordinates><panel_attributes>Modes
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1342</x><y>2178</y><w>264</w><h>110</h></coordinates><panel_attributes>Modes
 --
 + id: number
 + mode: string
 + roomSession: RoomSession
 --
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>332</x><y>671</y><w>188</w><h>96</h></coordinates><panel_attributes>lt=-
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>825</x><y>1727</y><w>517</w><h>264</h></coordinates><panel_attributes>lt=-
 m1=1
 m2=1
-&lt; assigned </panel_attributes><additional_attributes>10;10;10;210;450;210</additional_attributes></element><element><id>Relation</id><coordinates><x>296</x><y>763</y><w>232</w><h>104</h></coordinates><panel_attributes>lt=-
+&lt; assigned </panel_attributes><additional_attributes>10;10;10;210;450;210</additional_attributes></element><element><id>Relation</id><coordinates><x>726</x><y>1980</y><w>638</w><h>286</h></coordinates><panel_attributes>lt=-
 m1=1
 m2=1
-&lt; assigned </panel_attributes><additional_attributes>10;10;160;10;370;230;560;230</additional_attributes></element><element><id>UMLPackage</id><coordinates><x>368</x><y>43</y><w>580</w><h>180</h></coordinates><panel_attributes>Controller</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>496</x><y>95</y><w>268</w><h>24</h></coordinates><panel_attributes>RoomSessionUserPointsController
+&lt; assigned </panel_attributes><additional_attributes>10;10;160;10;370;230;560;230</additional_attributes></element><element><id>UMLPackage</id><coordinates><x>924</x><y>0</y><w>1595</w><h>495</h></coordinates><panel_attributes>Controller</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1276</x><y>143</y><w>737</w><h>66</h></coordinates><panel_attributes>RoomSessionUserPointsController
 --
 --
-+ getPointsByRoomSessionUser(@Param('userId') userId: number): Promise&lt;RoomSessionUserPointsResponseDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>384</x><y>63</y><w>268</w><h>28</h></coordinates><panel_attributes>RoomSessionPointsController
++ getPointsByRoomSessionUser(@Param('userId') userId: number): Promise&lt;RoomSessionUserPointsResponseDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>968</x><y>55</y><w>737</w><h>77</h></coordinates><panel_attributes>RoomSessionPointsController
 --
 --
-+ getPointsBySession(@Param('sessionId') sessionId: number): Promise&lt;RoomSessionPointsRequestDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>584</x><y>131</y><w>268</w><h>32</h></coordinates><panel_attributes>RoleAssignmentController
++ getPointsBySession(@Param('sessionId') sessionId: number): Promise&lt;RoomSessionPointsRequestDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1518</x><y>242</y><w>737</w><h>88</h></coordinates><panel_attributes>RoleAssignmentController
 --
 --
 + getRolesBySession(sessionId:number):Promise&lt;RolesAssignmentDto[]&gt;
 + getUserRoleForSession(userId: string, sessionId)
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>664</x><y>175</y><w>268</w><h>28</h></coordinates><panel_attributes>ModeAssignmentController
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1738</x><y>363</y><w>737</w><h>77</h></coordinates><panel_attributes>ModeAssignmentController
 --
 --
 + getModeForSession(sessionId:number): Promise&lt;ModeAssignment[]&gt;
-</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>804</x><y>395</y><w>104</w><h>40</h></coordinates><panel_attributes>RoomSessionUserPointsResponseDto
+</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>2123</x><y>968</y><w>286</w><h>110</h></coordinates><panel_attributes>RoomSessionUserPointsResponseDto
 --
 + allPoints: AllPoints
 + totalPoints: number
@@ -127,14 +127,14 @@ m2=1
 + userId: number
 --
 
-group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>804</x><y>351</y><w>92</w><h>36</h></coordinates><panel_attributes>RoomSessionPointsRequestDto
+group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>2123</x><y>847</y><w>253</w><h>99</h></coordinates><panel_attributes>RoomSessionPointsRequestDto
 --
 + allPoints: AllPoints
 + totalPoints: number;
 + sessionId: number;
 --
 
-group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>804</x><y>443</y><w>92</w><h>44</h></coordinates><panel_attributes>RoleAssignmentDto
+group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>2123</x><y>1100</y><w>253</w><h>121</h></coordinates><panel_attributes>RoleAssignmentDto
 --
 + userId: string
 + userName: string
@@ -142,55 +142,67 @@ group=group-4</panel_attributes><additional_attributes></additional_attributes><
 + pointsTotal: number
 --
 
-group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>804</x><y>495</y><w>92</w><h>28</h></coordinates><panel_attributes>ModeAssignmentDto
+group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>2123</x><y>1243</y><w>253</w><h>77</h></coordinates><panel_attributes>ModeAssignmentDto
 --
 + sessionId: number
 + mode: string
 --
 
-group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>788</x><y>331</y><w>132</w><h>204</h></coordinates><panel_attributes>DTOs
-group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>788</x><y>251</y><w>68</w><h>52</h></coordinates><panel_attributes>&lt;&lt;dateType&gt;&gt;
+group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLPackage</id><coordinates><x>2079</x><y>792</y><w>363</w><h>561</h></coordinates><panel_attributes>DTOs
+group=group-4</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>2079</x><y>572</y><w>187</w><h>143</h></coordinates><panel_attributes>&lt;&lt;dateType&gt;&gt;
 AllPoints
 --
 audioPoints: number
 videoPoints: number
 browserPoints: number
 whiteboardPoints: number
-notePoints: number</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>196</x><y>367</y><w>204</w><h>32</h></coordinates><panel_attributes>RoomSessionService
+notePoints: number</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>451</x><y>891</y><w>561</w><h>88</h></coordinates><panel_attributes>RoomSessionService
 --
 --
 + beginSession(room: Room): Promise&lt;RoomSession&gt;
 + closeSession(roomSession: RoomSession): Promise&lt;void&gt;
-+ getAllPointsBySession(sessionId: number): Promise&lt;RoomSessionPointsRequestDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>316</x><y>403</y><w>248</w><h>32</h></coordinates><panel_attributes>RoomSessionUserService
++ getAllPointsBySession(sessionId: number): Promise&lt;RoomSessionPointsRequestDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>781</x><y>990</y><w>682</w><h>88</h></coordinates><panel_attributes>RoomSessionUserService
 --
 --
 + addSessionUser(roomSession: RoomSession, userId: string, name: string): Promise&lt;RoomSessionUser&gt;
 + updateSessionUserName(roomSession: RoomSession, userId: string, name:string)
-+ getPointsByRoomSessionUser(userId: number): Promise&lt;RoomSessionUserPointsResponseDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>396</x><y>375</y><w>416</w><h>20</h></coordinates><panel_attributes>lt=&lt;.
++ getPointsByRoomSessionUser(userId: number): Promise&lt;RoomSessionUserPointsResponseDto&gt;</panel_attributes><additional_attributes></additional_attributes></element><element><id>Relation</id><coordinates><x>1001</x><y>913</y><w>1144</w><h>55</h></coordinates><panel_attributes>lt=&lt;.
 
-returns</panel_attributes><additional_attributes>1020;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>560</x><y>411</y><w>252</w><h>20</h></coordinates><panel_attributes>lt=&lt;.
+returns</panel_attributes><additional_attributes>1020;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>1452</x><y>1012</y><w>693</w><h>55</h></coordinates><panel_attributes>lt=&lt;.
 
-returns</panel_attributes><additional_attributes>610;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>636</x><y>455</y><w>176</w><h>20</h></coordinates><panel_attributes>lt=&lt;.
+returns</panel_attributes><additional_attributes>610;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>1661</x><y>1133</y><w>484</w><h>55</h></coordinates><panel_attributes>lt=&lt;.
 
-returns</panel_attributes><additional_attributes>420;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>716</x><y>495</y><w>96</w><h>20</h></coordinates><panel_attributes>lt=&lt;.
+returns</panel_attributes><additional_attributes>420;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>1881</x><y>1243</y><w>264</w><h>55</h></coordinates><panel_attributes>lt=&lt;.
 
-returns</panel_attributes><additional_attributes>220;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>384</x><y>87</y><w>20</w><h>288</h></coordinates><panel_attributes>lt=&lt;.
+returns</panel_attributes><additional_attributes>220;20;10;20</additional_attributes></element><element><id>Relation</id><coordinates><x>968</x><y>121</y><w>55</w><h>792</h></coordinates><panel_attributes>lt=&lt;.
 
-uses</panel_attributes><additional_attributes>10;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>616</x><y>159</y><w>24</w><h>288</h></coordinates><panel_attributes>lt=&lt;.
+uses</panel_attributes><additional_attributes>10;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>1606</x><y>319</y><w>66</w><h>792</h></coordinates><panel_attributes>lt=&lt;.
 
-uses</panel_attributes><additional_attributes>20;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>248</x><y>391</y><w>40</w><h>356</h></coordinates><panel_attributes>lt=&lt;.
-manages v</panel_attributes><additional_attributes>10;870;20;10</additional_attributes></element><element><id>Relation</id><coordinates><x>528</x><y>115</y><w>24</w><h>296</h></coordinates><panel_attributes>lt=&lt;.
+uses</panel_attributes><additional_attributes>20;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>594</x><y>957</y><w>110</w><h>979</h></coordinates><panel_attributes>lt=&lt;.
+manages v</panel_attributes><additional_attributes>10;870;20;10</additional_attributes></element><element><id>Relation</id><coordinates><x>1364</x><y>198</y><w>66</w><h>814</h></coordinates><panel_attributes>lt=&lt;.
 
-uses</panel_attributes><additional_attributes>20;720;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>704</x><y>199</y><w>24</w><h>288</h></coordinates><panel_attributes>lt=&lt;.
+uses</panel_attributes><additional_attributes>20;720;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>1848</x><y>429</y><w>66</w><h>792</h></coordinates><panel_attributes>lt=&lt;.
 
-uses</panel_attributes><additional_attributes>20;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>336</x><y>431</y><w>36</w><h>208</h></coordinates><panel_attributes>lt=&lt;.
-manages</panel_attributes><additional_attributes>10;500;20;10</additional_attributes></element><element><id>Relation</id><coordinates><x>520</x><y>467</y><w>32</w><h>284</h></coordinates><panel_attributes>lt=&lt;.
-manages</panel_attributes><additional_attributes>10;690;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>612</x><y>507</y><w>68</w><h>356</h></coordinates><panel_attributes>lt=&lt;.
-manages</panel_attributes><additional_attributes>10;870;100;870;100;10</additional_attributes></element><element><id>Relation</id><coordinates><x>168</x><y>355</y><w>40</w><h>276</h></coordinates><panel_attributes>lt=&lt;.
-manages v</panel_attributes><additional_attributes>10;670;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>120</x><y>355</y><w>344</w><h>596</h></coordinates><panel_attributes>lt=&lt;.
-manages &gt;</panel_attributes><additional_attributes>840;850;840;1470;10;1470;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>448</x><y>431</y><w>28</w><h>212</h></coordinates><panel_attributes>lt=&lt;.
-queries</panel_attributes><additional_attributes>10;510;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>300</x><y>395</y><w>28</w><h>32</h></coordinates><panel_attributes>lt=&lt;.
-uses</panel_attributes><additional_attributes>10;10;40;60</additional_attributes></element><element><id>Relation</id><coordinates><x>480</x><y>467</y><w>20</w><h>176</h></coordinates><panel_attributes>lt=&lt;.
-uses</panel_attributes><additional_attributes>10;420;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>496</x><y>507</y><w>112</w><h>168</h></coordinates><panel_attributes>lt=&lt;.
-uses</panel_attributes><additional_attributes>10;400;240;400;240;10</additional_attributes></element><element><id>Relation</id><coordinates><x>132</x><y>355</y><w>184</w><h>284</h></coordinates><panel_attributes>lt=&lt;.
-uses</panel_attributes><additional_attributes>440;690;440;280;10;280;10;10</additional_attributes></element></diagram>
\ No newline at end of file
+uses</panel_attributes><additional_attributes>20;700;10;10</additional_attributes></element><element><id>Relation</id><coordinates><x>836</x><y>1067</y><w>99</w><h>572</h></coordinates><panel_attributes>lt=&lt;.
+manages</panel_attributes><additional_attributes>10;500;20;10</additional_attributes></element><element><id>Relation</id><coordinates><x>1342</x><y>1166</y><w>88</w><h>781</h></coordinates><panel_attributes>lt=&lt;.
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+RoleType
+--
+MODERATOR
+NOTETAKER
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+...</panel_attributes><additional_attributes></additional_attributes></element><element><id>UMLClass</id><coordinates><x>1782</x><y>2178</y><w>209</w><h>110</h></coordinates><panel_attributes>&lt;&lt;enumeration&gt;&gt;
+ModeType
+--
+PAIR_PROGRAMMING
+ROTATING
+ROLE_BASED_PROGRAMMING
+</panel_attributes><additional_attributes></additional_attributes></element></diagram>
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