diff --git a/.gitignore b/.gitignore
index 97a6cac..dba50a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,4 @@ build/
 
 # IDE
 .vscode/qtrocket.pro.user
+qtrocket.pro.user
diff --git a/docs/qtrocketUML.xmi b/docs/qtrocketUML.xmi
new file mode 100644
index 0000000..3bd6f98
--- /dev/null
+++ b/docs/qtrocketUML.xmi
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xmi:XMI xmi:version="2.1" xmlns:xmi="http://schema.omg.org/spec/XMI/2.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:uml="http://schema.omg.org/spec/UML/2.1">
+  <xmi:Documentation exporter="umbrello uml modeller 2.37.2 (Applications 22.12.2) http://umbrello.kde.org" exporterVersion="2.0.4"/>
+  <uml:Model xmi:id="m1" name="UML Model">
+    <packagedElement xmi:type="uml:Stereotype" xmi:id="folder" name="folder"/>
+    <packagedElement xmi:type="uml:Stereotype" xmi:id="dataType" name="dataType"/>
+    <packagedElement xmi:type="uml:Model" xmi:id="Logical_View" name="Logical View">
+      <uml:Package xmi:id="Datatypes" name="Datatypes" stereotype="folder">
+        <packagedElement xmi:type="uml:DataType" xmi:id="u2SHe85IKGPS4" name="char" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uCUK2CNbANsw0" name="int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uMRaSQbz3cw04" name="float" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uEfIOPdlu0jns" name="double" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u1uhx2cAPfkGY" name="bool" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uZB2ol23qLn1e" name="string" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uCa5MejTfQL7K" name="unsigned char" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uE6f4Vbej2jWa" name="signed char" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uICzf3OaZptQT" name="unsigned int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u2VrUFWOEyonC" name="signed int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u0N1oa7l64XVo" name="short int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uZ4acQQnncyDM" name="unsigned short int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uZtxSe096gq8v" name="signed short int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u7mvkTsVDAqJv" name="long int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uuDCe7aXa1Ft4" name="signed long int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u2nD2uMwfODGn" name="unsigned long int" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="uNWlxUb3Hpb3P" name="long double" stereotype="dataType"/>
+        <packagedElement xmi:type="uml:DataType" xmi:id="u2YMSCLL6np4m" name="wchar_t" stereotype="dataType"/>
+      </uml:Package>
+      <packagedElement xmi:type="uml:Class" xmi:id="ub3BkrJgaKUkU" name="RocketComponent"/>
+      <packagedElement xmi:type="uml:Class" xmi:id="u9HNDGx5lA3c6" name="Rocket"/>
+      <packagedElement xmi:type="uml:Class" xmi:id="ukn7qJcMLOH1J" name="RocketStage"/>
+      <xmi:Extension extender="umbrello">
+        <diagrams resolution="103">
+          <diagram xmi.id="ugWA4YbtCT4Ec" name="class diagram" type="1" documentation="" backgroundcolor="#ffffff" fillcolor="#ffffc0" font="Noto Sans,10,-1,5,50,0,0,0,0,0,Regular" griddotcolor="#f7f7f7" linecolor="#990000" linewidth="0" textcolor="#000000" usefillcolor="1" showattribassocs="1" showatts="1" showattsig="1" showops="1" showopsig="1" showpackage="1" showpubliconly="0" showscope="1" showstereotype="2" localid="-1" showgrid="1" snapgrid="1" snapcsgrid="0" snapx="25" snapy="25" zoom="100" canvasheight="800" canvaswidth="1100" isopen="1">
+            <widgets>
+              <classwidget xmi.id="ub3BkrJgaKUkU" localid="uvMqndMEylw0A" textcolor="#000000" linecolor="#990000" linewidth="0" usefillcolor="1" usesdiagramfillcolor="0" usesdiagramusefillcolor="0" fillcolor="#ffffc0" font="Noto Sans,10,-1,0,50,0,0,0,0,0" autoresize="1" x="250" y="-75" width="140" height="37" isinstance="0" showstereotype="2" showoperations="1" showpubliconly="0" showopsigs="601" showpackage="1" showscope="1" showattributes="1" showattsigs="601"/>
+              <classwidget xmi.id="u9HNDGx5lA3c6" localid="u3JNkqNCqlG5V" textcolor="#000000" linecolor="#990000" linewidth="0" usefillcolor="1" usesdiagramfillcolor="0" usesdiagramusefillcolor="0" fillcolor="#ffffc0" font="Noto Sans,10,-1,0,50,0,0,0,0,0" autoresize="1" x="600" y="-75" width="59" height="37" isinstance="0" showstereotype="2" showoperations="1" showpubliconly="0" showopsigs="601" showpackage="1" showscope="1" showattributes="1" showattsigs="601"/>
+              <classwidget xmi.id="ukn7qJcMLOH1J" localid="ujhYjJ9J8XyDB" textcolor="#000000" linecolor="#990000" linewidth="0" usefillcolor="1" usesdiagramfillcolor="0" usesdiagramusefillcolor="0" fillcolor="#ffffc0" font="Noto Sans,10,-1,5,50,0,0,0,0,0,Regular" autoresize="1" x="150" y="25" width="92" height="37" isinstance="0" showstereotype="2" showoperations="1" showpubliconly="0" showopsigs="601" showpackage="1" showscope="1" showattributes="1" showattsigs="601"/>
+            </widgets>
+            <messages/>
+            <associations/>
+          </diagram>
+        </diagrams>
+      </xmi:Extension>
+    </packagedElement>
+    <packagedElement xmi:type="uml:Model" xmi:id="Use_Case_View" name="Use Case View"/>
+    <packagedElement xmi:type="uml:Model" xmi:id="Component_View" name="Component View"/>
+    <packagedElement xmi:type="uml:Model" xmi:id="Deployment_View" name="Deployment View"/>
+    <packagedElement xmi:type="uml:Model" xmi:id="Entity_Relationship_Model" name="Entity Relationship Model"/>
+  </uml:Model>
+  <xmi:Extension extender="umbrello">
+    <docsettings viewid="ugWA4YbtCT4Ec" documentation="" uniqueid="ujhYjJ9J8XyDB"/>
+    <listview>
+      <listitem id="Views" type="800" open="1">
+        <listitem id="Component_View" type="821" open="1"/>
+        <listitem id="Deployment_View" type="827" open="1"/>
+        <listitem id="Entity_Relationship_Model" type="836" open="1"/>
+        <listitem id="Logical_View" type="801" open="1">
+          <listitem id="ugWA4YbtCT4Ec" type="807" label="class diagram" open="0"/>
+          <listitem id="Datatypes" type="830" open="0">
+            <listitem id="u1uhx2cAPfkGY" type="829" open="0"/>
+            <listitem id="uEfIOPdlu0jns" type="829" open="0"/>
+            <listitem id="uMRaSQbz3cw04" type="829" open="0"/>
+            <listitem id="uNWlxUb3Hpb3P" type="829" open="0"/>
+            <listitem id="u7mvkTsVDAqJv" type="829" open="0"/>
+            <listitem id="u0N1oa7l64XVo" type="829" open="0"/>
+            <listitem id="u2VrUFWOEyonC" type="829" open="0"/>
+            <listitem id="uuDCe7aXa1Ft4" type="829" open="0"/>
+            <listitem id="uZtxSe096gq8v" type="829" open="0"/>
+            <listitem id="uZB2ol23qLn1e" type="829" open="0"/>
+            <listitem id="uCa5MejTfQL7K" type="829" open="0"/>
+            <listitem id="uICzf3OaZptQT" type="829" open="0"/>
+            <listitem id="u2nD2uMwfODGn" type="829" open="0"/>
+            <listitem id="uZ4acQQnncyDM" type="829" open="0"/>
+            <listitem id="u2YMSCLL6np4m" type="829" open="0"/>
+          </listitem>
+          <listitem id="u9HNDGx5lA3c6" type="813" open="1"/>
+          <listitem id="ub3BkrJgaKUkU" type="813" open="1"/>
+          <listitem id="ukn7qJcMLOH1J" type="813" open="1"/>
+        </listitem>
+        <listitem id="Use_Case_View" type="802" open="1"/>
+      </listitem>
+    </listview>
+    <codegeneration>
+      <codegenerator language="C++"/>
+    </codegeneration>
+  </xmi:Extension>
+</xmi:XMI>