diff --git a/.gitignore b/.gitignore
index 73df60d..2061c9e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
 target
 .classpath
 .project
-.settings
diff --git a/.idea/libraries/target.xml b/.idea/libraries/target.xml
deleted file mode 100644
index 37180ef..0000000
--- a/.idea/libraries/target.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<component name="libraryTable">
-  <library name="target">
-    <CLASSES>
-      <root url="jar://$PROJECT_DIR$/target/information-system-model-2.1.0-SNAPSHOT-sources.jar!/" />
-      <root url="jar://$PROJECT_DIR$/target/information-system-model-2.1.0-SNAPSHOT.jar!/" />
-      <root url="jar://$PROJECT_DIR$/target/information-system-model-2.1.0-SNAPSHOT-javadoc.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
deleted file mode 100644
index e208459..0000000
--- a/.idea/misc.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/out" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
deleted file mode 100644
index 211fc4d..0000000
--- a/.idea/modules.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/src/main/main.iml" filepath="$PROJECT_DIR$/src/main/main.iml" />
-      <module fileurl="file://$PROJECT_DIR$/src/test/test.iml" filepath="$PROJECT_DIR$/src/test/test.iml" />
-    </modules>
-  </component>
-</project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
deleted file mode 100644
index a32e8b5..0000000
--- a/.idea/workspace.xml
+++ /dev/null
@@ -1,191 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ChangeListManager">
-    <list default="true" id="a729638b-8dc9-4324-bc9f-3e5d9ffebbc2" name="Default Changelist" comment="" />
-    <ignored path="$PROJECT_DIR$/out/" />
-    <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
-    <option name="SHOW_DIALOG" value="false" />
-    <option name="HIGHLIGHT_CONFLICTS" value="true" />
-    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-    <option name="LAST_RESOLUTION" value="IGNORE" />
-  </component>
-  <component name="FavoritesManager">
-    <favorites_list name="information-system-model" />
-  </component>
-  <component name="ProjectFrameBounds" extendedState="6">
-    <option name="x" value="2180" />
-    <option name="y" value="100" />
-    <option name="width" value="1400" />
-    <option name="height" value="1000" />
-  </component>
-  <component name="ProjectView">
-    <navigator currentView="PackagesPane" proportions="" version="1">
-      <foldersAlwaysOnTop value="true" />
-    </navigator>
-    <panes>
-      <pane id="Scope" />
-      <pane id="ProjectPane" />
-      <pane id="PackagesPane" />
-    </panes>
-  </component>
-  <component name="PropertiesComponent">
-    <property name="project.structure.last.edited" value="Project" />
-    <property name="project.structure.proportion" value="0.15" />
-    <property name="project.structure.side.proportion" value="0.0" />
-    <property name="settings.editor.selected.configurable" value="project.propCompiler" />
-  </component>
-  <component name="RunDashboard">
-    <option name="ruleStates">
-      <list>
-        <RuleState>
-          <option name="name" value="ConfigurationTypeDashboardGroupingRule" />
-        </RuleState>
-        <RuleState>
-          <option name="name" value="StatusDashboardGroupingRule" />
-        </RuleState>
-      </list>
-    </option>
-  </component>
-  <component name="SvnConfiguration">
-    <configuration />
-  </component>
-  <component name="TaskManager">
-    <task active="true" id="Default" summary="Default task">
-      <changelist id="a729638b-8dc9-4324-bc9f-3e5d9ffebbc2" name="Default Changelist" comment="" />
-      <created>1548929804583</created>
-      <option name="number" value="Default" />
-      <option name="presentableId" value="Default" />
-      <updated>1548929804583</updated>
-    </task>
-    <servers />
-  </component>
-  <component name="TodoView">
-    <todo-panel id="selected-file">
-      <is-autoscroll-to-source value="true" />
-    </todo-panel>
-    <todo-panel id="all">
-      <are-packages-shown value="true" />
-      <is-autoscroll-to-source value="true" />
-    </todo-panel>
-  </component>
-  <component name="ToolWindowManager">
-    <frame x="1971" y="25" width="1869" height="1175" extended-state="6" />
-    <layout>
-      <window_info active="true" id="Favorites" sideWeight="0.50071126" side_tool="true" visible="true" weight="0.18540867" />
-      <window_info id="Image Layers" />
-      <window_info id="Designer" />
-      <window_info id="UI Designer" />
-      <window_info id="Capture Tool" />
-      <window_info id="Learn" weight="0.32967636" />
-      <window_info content_ui="combo" id="Project" order="0" sideWeight="0.49928877" visible="true" weight="0.18540867" />
-      <window_info id="Structure" order="1" sideWeight="0.50071126" side_tool="true" weight="0.18540867" />
-      <window_info anchor="bottom" id="Version Control" />
-      <window_info anchor="bottom" id="Terminal" />
-      <window_info anchor="bottom" id="Event Log" side_tool="true" />
-      <window_info anchor="bottom" id="Messages" visible="true" weight="0.32919848" />
-      <window_info anchor="bottom" id="Message" order="0" />
-      <window_info anchor="bottom" id="Find" order="1" />
-      <window_info anchor="bottom" id="Run" order="2" />
-      <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
-      <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
-      <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
-      <window_info anchor="bottom" id="TODO" order="6" weight="0.32919848" />
-      <window_info anchor="right" id="Palette" />
-      <window_info anchor="right" id="Theme Preview" />
-      <window_info anchor="right" id="Maven" />
-      <window_info anchor="right" id="Capture Analysis" />
-      <window_info anchor="right" id="Palette&#9;" />
-      <window_info anchor="right" id="Commander" internal_type="SLIDING" order="0" type="SLIDING" weight="0.4" />
-      <window_info anchor="right" id="Ant Build" order="1" weight="0.25" />
-      <window_info anchor="right" content_ui="combo" id="Hierarchy" order="2" weight="0.25" />
-    </layout>
-  </component>
-  <component name="masterDetails">
-    <states>
-      <state key="ArtifactsStructureConfigurable.UI">
-        <settings>
-          <artifact-editor />
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="FacetStructureConfigurable.UI">
-        <settings>
-          <last-edited>No facets are configured</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="GlobalLibrariesConfigurable.UI">
-        <settings>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="JdkListConfigurable.UI">
-        <settings>
-          <last-edited>1.8</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ModuleStructureConfigurable.UI">
-        <settings>
-          <last-edited>main</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-                <option value="0.6" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ProjectJDKs.UI">
-        <settings>
-          <last-edited>1.8</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-      <state key="ProjectLibrariesConfigurable.UI">
-        <settings>
-          <last-edited>target</last-edited>
-          <splitter-proportions>
-            <option name="proportions">
-              <list>
-                <option value="0.2" />
-              </list>
-            </option>
-          </splitter-proportions>
-        </settings>
-      </state>
-    </states>
-  </component>
-</project>
\ No newline at end of file