diff --git a/plantUML/PlantUML_Language_Reference_Guide_en.pdf b/plantUML/PlantUML_Language_Reference_Guide_en.pdf
new file mode 100644
index 0000000..ca76c0d
Binary files /dev/null and b/plantUML/PlantUML_Language_Reference_Guide_en.pdf differ
diff --git a/plantUML/exemples/DC.plantuml b/plantUML/exemples/DC.plantuml
new file mode 100644
index 0000000..156dfb6
--- /dev/null
+++ b/plantUML/exemples/DC.plantuml
@@ -0,0 +1,37 @@
+@startuml
+scale 1.5
+
+together {
+class "Station"
+class "Liaison"
+}
+
+class "Ligne"
+
+together {
+abstract class "Parcours"
+class "Parcours Simple"
+class "Parcours Complexe"
+}
+
+Station "1\n-debut" <-- Liaison
+Station "1\n-fin" <-- Liaison
+Ligne <-- Liaison
+
+Ligne *-- Liaison
+
+Station "1\n-debut" <-- Parcours
+Station "1\n-fin" <-- Parcours
+
+Parcours <|-- "Parcours Simple"
+Ligne    <-- "Parcours Simple"
+Liaison --* "Parcours Simple"
+note right on link #blue
+Liaisons de la meme ligne
+qui se suivent
+end note
+
+Parcours <|-- "Parcours Complexe"
+"Parcours Simple" --* "Parcours Complexe"
+
+@enduml
diff --git a/plantUML/exemples/DC.plantuml~ b/plantUML/exemples/DC.plantuml~
new file mode 100644
index 0000000..c1adcb0
--- /dev/null
+++ b/plantUML/exemples/DC.plantuml~
@@ -0,0 +1,7 @@
+@startuml
+class Station
+
+class Liaison ---> "customer\n1" Station
+
+
+@enduml
diff --git a/plantUML/exemples/DC.svg b/plantUML/exemples/DC.svg
new file mode 100644
index 0000000..5cb9e24
--- /dev/null
+++ b/plantUML/exemples/DC.svg
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="452px" preserveAspectRatio="none" style="width:417px;height:452px;" version="1.1" viewBox="0 0 417 452" width="417px" zoomAndPan="magnify"><defs><filter height="300%" id="fqcag38eiludp" width="300%" x="-1" y="-1"><feGaussianBlur result="blurOut" stdDeviation="2.0"/><feColorMatrix in="blurOut" result="blurOut2" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .4 0"/><feOffset dx="4.0" dy="4.0" in="blurOut2" result="blurOut3"/><feBlend in="SourceGraphic" in2="blurOut3" mode="normal"/></filter></defs><g><!--MD5=[32f8e77670dc7b12ba11221465fb86a4]
+class Station--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Station" style="stroke: #A80036; stroke-width: 1.5;" width="71" x="65" y="8"/><ellipse cx="80" cy="24" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M82.9688,29.6406 Q82.3906,29.9375 81.75,30.0781 Q81.1094,30.2344 80.4063,30.2344 Q77.9063,30.2344 76.5781,28.5938 Q75.2656,26.9375 75.2656,23.8125 Q75.2656,20.6875 76.5781,19.0313 Q77.9063,17.375 80.4063,17.375 Q81.1094,17.375 81.75,17.5313 Q82.4063,17.6875 82.9688,17.9844 L82.9688,20.7031 Q82.3438,20.125 81.75,19.8594 Q81.1563,19.5781 80.5313,19.5781 Q79.1875,19.5781 78.5,20.6563 Q77.8125,21.7188 77.8125,23.8125 Q77.8125,25.9063 78.5,26.9844 Q79.1875,28.0469 80.5313,28.0469 Q81.1563,28.0469 81.75,27.7813 Q82.3438,27.5 82.9688,26.9219 L82.9688,29.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="94" y="28.656">Station</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="66" x2="135" y1="40" y2="40"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="66" x2="135" y1="48" y2="48"/><!--MD5=[f3962cbe5415c7aa469c7e2e63258ade]
+class Liaison--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Liaison" style="stroke: #A80036; stroke-width: 1.5;" width="71" x="152" y="117"/><ellipse cx="167" cy="133" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M169.9688,138.6406 Q169.3906,138.9375 168.75,139.0781 Q168.1094,139.2344 167.4063,139.2344 Q164.9063,139.2344 163.5781,137.5938 Q162.2656,135.9375 162.2656,132.8125 Q162.2656,129.6875 163.5781,128.0313 Q164.9063,126.375 167.4063,126.375 Q168.1094,126.375 168.75,126.5313 Q169.4063,126.6875 169.9688,126.9844 L169.9688,129.7031 Q169.3438,129.125 168.75,128.8594 Q168.1563,128.5781 167.5313,128.5781 Q166.1875,128.5781 165.5,129.6563 Q164.8125,130.7188 164.8125,132.8125 Q164.8125,134.9063 165.5,135.9844 Q166.1875,137.0469 167.5313,137.0469 Q168.1563,137.0469 168.75,136.7813 Q169.3438,136.5 169.9688,135.9219 L169.9688,138.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="39" x="181" y="137.656">Liaison</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="153" x2="222" y1="149" y2="149"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="153" x2="222" y1="157" y2="157"/><!--MD5=[c4d7de58b6b74e0d187415ecc51ab732]
+class Ligne--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Ligne" style="stroke: #A80036; stroke-width: 1.5;" width="62" x="195.5" y="8"/><ellipse cx="210.5" cy="24" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M213.4688,29.6406 Q212.8906,29.9375 212.25,30.0781 Q211.6094,30.2344 210.9063,30.2344 Q208.4063,30.2344 207.0781,28.5938 Q205.7656,26.9375 205.7656,23.8125 Q205.7656,20.6875 207.0781,19.0313 Q208.4063,17.375 210.9063,17.375 Q211.6094,17.375 212.25,17.5313 Q212.9063,17.6875 213.4688,17.9844 L213.4688,20.7031 Q212.8438,20.125 212.25,19.8594 Q211.6563,19.5781 211.0313,19.5781 Q209.6875,19.5781 209,20.6563 Q208.3125,21.7188 208.3125,23.8125 Q208.3125,25.9063 209,26.9844 Q209.6875,28.0469 211.0313,28.0469 Q211.6563,28.0469 212.25,27.7813 Q212.8438,27.5 213.4688,26.9219 L213.4688,29.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="30" x="224.5" y="28.656">Ligne</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="196.5" x2="256.5" y1="40" y2="40"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="196.5" x2="256.5" y1="48" y2="48"/><!--MD5=[7db1b1db770967d5ff466a2fbb70e9cc]
+class Parcours--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Parcours" style="stroke: #A80036; stroke-width: 1.5;" width="80" x="36.5" y="117"/><ellipse cx="51.5" cy="133" fill="#A9DCDF" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M51.6094,128.3438 L50.4531,133.4219 L52.7813,133.4219 L51.6094,128.3438 Z M50.125,126.1094 L53.1094,126.1094 L56.4688,138.5 L54.0156,138.5 L53.25,135.4375 L49.9688,135.4375 L49.2188,138.5 L46.7813,138.5 L50.125,126.1094 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacingAndGlyphs" textLength="48" x="65.5" y="137.656">Parcours</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="37.5" x2="115.5" y1="149" y2="149"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="37.5" x2="115.5" y1="157" y2="157"/><!--MD5=[9c51ef84c45d4bd0fc227d6440ed125c]
+class Parcours Simple--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Parcours Simple" style="stroke: #A80036; stroke-width: 1.5;" width="123" x="110" y="284"/><ellipse cx="125" cy="300" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M127.9688,305.6406 Q127.3906,305.9375 126.75,306.0781 Q126.1094,306.2344 125.4063,306.2344 Q122.9063,306.2344 121.5781,304.5938 Q120.2656,302.9375 120.2656,299.8125 Q120.2656,296.6875 121.5781,295.0313 Q122.9063,293.375 125.4063,293.375 Q126.1094,293.375 126.75,293.5313 Q127.4063,293.6875 127.9688,293.9844 L127.9688,296.7031 Q127.3438,296.125 126.75,295.8594 Q126.1563,295.5781 125.5313,295.5781 Q124.1875,295.5781 123.5,296.6563 Q122.8125,297.7188 122.8125,299.8125 Q122.8125,301.9063 123.5,302.9844 Q124.1875,304.0469 125.5313,304.0469 Q126.1563,304.0469 126.75,303.7813 Q127.3438,303.5 127.9688,302.9219 L127.9688,305.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="91" x="139" y="304.656">Parcours Simple</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="111" x2="232" y1="316" y2="316"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="111" x2="232" y1="324" y2="324"/><!--MD5=[2a3687bb402be45bbb119d98f776accb]
+class Parcours Complexe--><rect fill="#FEFECE" filter="url(#fqcag38eiludp)" height="48" id="Parcours Complexe" style="stroke: #A80036; stroke-width: 1.5;" width="141" x="6" y="393"/><ellipse cx="21" cy="409" fill="#ADD1B2" rx="11" ry="11" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M23.9688,414.6406 Q23.3906,414.9375 22.75,415.0781 Q22.1094,415.2344 21.4063,415.2344 Q18.9063,415.2344 17.5781,413.5938 Q16.2656,411.9375 16.2656,408.8125 Q16.2656,405.6875 17.5781,404.0313 Q18.9063,402.375 21.4063,402.375 Q22.1094,402.375 22.75,402.5313 Q23.4063,402.6875 23.9688,402.9844 L23.9688,405.7031 Q23.3438,405.125 22.75,404.8594 Q22.1563,404.5781 21.5313,404.5781 Q20.1875,404.5781 19.5,405.6563 Q18.8125,406.7188 18.8125,408.8125 Q18.8125,410.9063 19.5,411.9844 Q20.1875,413.0469 21.5313,413.0469 Q22.1563,413.0469 22.75,412.7813 Q23.3438,412.5 23.9688,411.9219 L23.9688,414.6406 Z "/><text fill="#000000" font-family="sans-serif" font-size="12" lengthAdjust="spacingAndGlyphs" textLength="109" x="35" y="413.656">Parcours Complexe</text><line style="stroke: #A80036; stroke-width: 1.5;" x1="7" x2="146" y1="425" y2="425"/><line style="stroke: #A80036; stroke-width: 1.5;" x1="7" x2="146" y1="433" y2="433"/><!--MD5=[6a06afa17c9e21d73e21cf5693e86a6f]
+reverse link Station to Liaison--><path d="M111.58,60.54 C123.67,77.99 142,100.29 157.94,116.83 " fill="none" id="Station&lt;-Liaison" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="108.65,56.22,110.3985,65.9124,111.4596,60.356,117.016,61.417,108.65,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="7" x="82.9652" y="77.8471">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="40" x="66.4652" y="95.5531">-debut</text><!--MD5=[6a06afa17c9e21d73e21cf5693e86a6f]
+reverse link Station to Liaison--><path d="M134.45,60.1 C150.97,77.61 169.11,100.15 180.01,116.83 " fill="none" id="Station&lt;-Liaison-1" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="130.73,56.22,134.0604,65.4887,134.1861,59.8332,139.8416,59.9589,130.73,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="7" x="121.5521" y="77.8471">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="19" x="115.5521" y="95.5531">-fin</text><!--MD5=[3d7a38d5c695e3af85eaa1b277f972cc]
+reverse link Ligne to Liaison--><path d="M204.94,60.99 C196.56,78.36 188.73,100.43 185.23,116.83 " fill="none" id="Ligne&lt;-Liaison" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="207.31,56.22,199.7154,62.4907,205.0797,60.695,206.8754,66.0593,207.31,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[3d7a38d5c695e3af85eaa1b277f972cc]
+reverse link Ligne to Liaison--><path d="M226.13,69.3 C221.61,85.02 214.57,102.96 207.3,116.83 " fill="none" id="Ligne&lt;-Liaison-1" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="229.39,56.22,224.0581,61.075,226.4889,67.864,231.8208,63.0091,229.39,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[0be2219d56e0755b0debe1fc4f16ede8]
+reverse link Station to Parcours--><path d="M82.86,60.99 C76.92,78.36 72.18,100.43 70.98,116.83 " fill="none" id="Station&lt;-Parcours" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="84.57,56.22,77.7925,63.366,82.8992,60.9326,85.3326,66.0393,84.57,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="7" x="54.4454" y="77.8471">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="40" x="37.9454" y="95.5531">-debut</text><!--MD5=[0be2219d56e0755b0debe1fc4f16ede8]
+reverse link Station to Parcours--><path d="M106.21,61.43 C104.43,78.74 99.29,100.57 93.05,116.83 " fill="none" id="Station&lt;-Parcours-1" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="106.65,56.22,101.8939,64.8444,106.2218,61.2016,109.8645,65.5295,106.65,56.22" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="7" x="104.2839" y="77.8471">1</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="19" x="98.2839" y="95.5531">-fin</text><!--MD5=[f7744da6c8d8bc7b70eac95b7460f162]
+reverse link Parcours to Parcours Simple--><path d="M100.08,182.96 C118.39,214.76 143.12,257.71 158.16,283.83 " fill="none" id="Parcours&lt;-Parcours Simple" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="none" points="93.82,186.12,89.91,165.29,105.96,179.13,93.82,186.12" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[22bb3698fb6a4486e1ef39171a399acf]
+reverse link Ligne to Parcours Simple--><path d="M261.6,58.96 C314.9,101.54 405.1,188.1 355.5,254 C340.61,273.79 280.72,288.5 233.26,297.33 " fill="none" id="Ligne&lt;-Parcours Simple" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="257.51,55.72,262.0974,64.4352,261.4351,58.8173,267.0531,58.155,257.51,55.72" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[0979d37767f624222e13a384298b3733]
+link Liaison to Parcours Simple--><path d="M175.05,165.06 C170.81,174.12 166.62,184.79 164.5,195 C159.34,219.84 161.24,248.39 164.36,270.45 " fill="none" id="Liaison-&gt;Parcours Simple" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="166.46,283.58,169.4607,277.0229,164.5621,271.731,161.5614,278.2882,166.46,283.58" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M169.5,200 L169.5,245 L342.5,245 L342.5,210 L332.5,200 L169.5,200 " fill="#0000FF" filter="url(#fqcag38eiludp)" style="stroke: #A80036; stroke-width: 1.0;"/><path d="M332.5,200 L332.5,210 L342.5,210 L332.5,200 " fill="#0000FF" style="stroke: #A80036; stroke-width: 1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="152" x="175.5" y="218.897">Liaisons de la même ligne</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="82" x="175.5" y="236.603">qui se suivent</text><!--MD5=[507e3f25042babd9bcc3f336e211ab67]
+reverse link Parcours to Parcours Complexe--><path d="M76.5,185.52 C76.5,244.26 76.5,346.84 76.5,392.7 " fill="none" id="Parcours&lt;-Parcours Complexe" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="none" points="69.5,185.36,76.5,165.36,83.5,185.36,69.5,185.36" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[45eea69e6e40427f02a813a3bd05f9ff]
+link Parcours Simple to Parcours Complexe--><path d="M150.89,332.22 C137.69,347.08 120.37,366.59 105.76,383.05 " fill="none" id="Parcours Simple-&gt;Parcours Complexe" style="stroke: #A80036; stroke-width: 1.0;"/><polygon fill="#A80036" points="97.07,392.83,104.0438,390.9954,105.0325,383.8524,98.0587,385.687,97.07,392.83" style="stroke: #A80036; stroke-width: 1.0;"/><!--MD5=[a5814a10719d24e641f764e6317af777]
+@startuml
+class "Station"
+class "Liaison"
+class "Ligne"
+abstract class "Parcours"
+class "Parcours Simple"
+class "Parcours Complexe"
+
+Station "1\n-debut" <- - Liaison
+Station "1\n-fin" <- - Liaison
+Ligne <- - Liaison
+
+Ligne *- - Liaison
+
+Station "1\n-debut" <- - Parcours
+Station "1\n-fin" <- - Parcours
+
+Parcours <|- - "Parcours Simple"
+Ligne    <- - "Parcours Simple"
+Liaison - -* "Parcours Simple"
+note right on link #blue
+Liaisons de la même ligne
+qui se suivent
+end note
+
+Parcours <|- - "Parcours Complexe"
+"Parcours Simple" - -* "Parcours Complexe"
+
+@enduml
+
+PlantUML version 1.2020.02(Sun Mar 01 11:22:07 CET 2020)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Java Version: 21.0.8+9-Ubuntu-0ubuntu124.04.1
+Operating System: Linux
+Default Encoding: UTF-8
+Language: fr
+Country: FR
+--></g></svg>
\ No newline at end of file
diff --git a/plantUML/exemples/DCPosition.plantuml b/plantUML/exemples/DCPosition.plantuml
new file mode 100644
index 0000000..df38ee6
--- /dev/null
+++ b/plantUML/exemples/DCPosition.plantuml
@@ -0,0 +1,46 @@
+@startuml
+scale 1.5
+
+together {
+class "Station"
+class "Liaison"
+class "Ligne"
+}
+
+
+together {
+abstract class "Parcours"
+class "Parcours Simple"
+class "Parcours Complexe"
+}
+
+Station "1\n-debut" <-down- Liaison
+Station "1\n-fin" <-down- Liaison
+Ligne <-- Liaison
+
+Ligne *-- Liaison
+
+Station "1\n-debut" <-left- Parcours
+Station "1\n-fin" <-left- Parcours
+
+Parcours <|-up- "Parcours Simple"
+
+Ligne    <-- "Parcours Simple"
+
+Liaison -left-* "Parcours Simple"
+note on link #blue
+Liaisons de la meme ligne
+qui se suivent
+end note
+
+
+Parcours <|-up- "Parcours Complexe"
+"Parcours Simple" --* "Parcours Complexe"
+note on link #blue
+Parcours simples
+qui se suivent
+end note
+
+
+
+@enduml
diff --git a/plantUML/exemples/DCPosition.plantuml~ b/plantUML/exemples/DCPosition.plantuml~
new file mode 100644
index 0000000..156dfb6
--- /dev/null
+++ b/plantUML/exemples/DCPosition.plantuml~
@@ -0,0 +1,37 @@
+@startuml
+scale 1.5
+
+together {
+class "Station"
+class "Liaison"
+}
+
+class "Ligne"
+
+together {
+abstract class "Parcours"
+class "Parcours Simple"
+class "Parcours Complexe"
+}
+
+Station "1\n-debut" <-- Liaison
+Station "1\n-fin" <-- Liaison
+Ligne <-- Liaison
+
+Ligne *-- Liaison
+
+Station "1\n-debut" <-- Parcours
+Station "1\n-fin" <-- Parcours
+
+Parcours <|-- "Parcours Simple"
+Ligne    <-- "Parcours Simple"
+Liaison --* "Parcours Simple"
+note right on link #blue
+Liaisons de la meme ligne
+qui se suivent
+end note
+
+Parcours <|-- "Parcours Complexe"
+"Parcours Simple" --* "Parcours Complexe"
+
+@enduml
diff --git a/plantUML/readme.md b/plantUML/readme.md
new file mode 100644
index 0000000..91577c9
--- /dev/null
+++ b/plantUML/readme.md
@@ -0,0 +1,18 @@
+# PlantUML
+
+alternative à starUML pour générer des diagrammes UML.
+
+Différence principale : du texte qu'on peut écrire dans un éditeur de texte plutôt qu'un cliquodrome.
+
+'''plantuml
+@startuml
+scale 1.5
+
+together {
+class "Station"
+class "Liaison"
+class "Ligne"
+}
+@enduml
+
+'''
diff --git a/plantUML/readme.md~ b/plantUML/readme.md~
new file mode 100644
index 0000000..dc5b10e
--- /dev/null
+++ b/plantUML/readme.md~
@@ -0,0 +1,6 @@
+# PlantUML
+
+alternative à starUML pour générer des diagrammes UML.
+
+Différence principale : du texte qu'on peut écrire dans un éditeur de texte plutôt qu'un cliquodrome.
+