diff --git a/buildUML/basics/getting-service.puml b/buildUML/basics/getting-service.puml
new file mode 100644
index 000000000..036a4b2e5
--- /dev/null
+++ b/buildUML/basics/getting-service.puml
@@ -0,0 +1,53 @@
+@startuml
+:getService;
+note right
+  In any thread.
+  Get on demand only.
+  Do not cache result.
+  Do not request in constructor unless needed.
+end note
+
+if (Is Light Service) then (yes)
+else (no)
+  if (Is Service Declaration Found) then (yes)
+  else (no)
+    :Return ""null"";
+    detach
+  endif
+endif
+
+if (Is Created and Initialized?) then (yes)
+else (no)
+  if (Is Container Active?) then (active)
+    partition "synchronized on service class" {
+      if (Is Created and Initialized?) then (yes)
+      else (no)
+        if (Is Initializing?) then (yes)
+          :Throw ""PluginException""
+          Cyclic Service Initialization;
+          detach
+        else (no)
+          partition "non cancelable" {
+            :Create Instance]
+            note right
+              Avoid getting other services to reduce initialization tree.
+              As less dependencies, as more faster and reliable.
+            end note
+
+            :Register to be Disposed on Container Dispose
+            if Implements ""Disposable""]
+            :Load Persistent State
+            if Implements ""PersistentStateComponent""]
+          }
+        endif
+      endif
+    }
+  else (disposed or dispose in progress)
+    :Throw ""ProcessCanceledException"";
+    detach
+  endif
+endif
+
+:Return Instance;
+
+@enduml
\ No newline at end of file
diff --git a/images/basics/plugin_structure/img/getting_service.svg b/images/basics/plugin_structure/img/getting_service.svg
new file mode 100644
index 000000000..cb2ffb8cc
--- /dev/null
+++ b/images/basics/plugin_structure/img/getting_service.svg
@@ -0,0 +1,150 @@
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points="652.875,872.9989,642.875,876.9989,652.875,880.9989,648.875,876.9989" style="stroke:#383838;stroke-width:1.0;"/><line style="stroke:#383838;stroke-width:1.5;" x1="630.875" x2="630.875" y1="310.7996" y2="330.7996"/><polygon fill="#383838" points="626.875,320.7996,630.875,330.7996,634.875,320.7996,630.875,324.7996" style="stroke:#383838;stroke-width:1.0;"/><line style="stroke:#383838;stroke-width:1.5;" x1="630.875" x2="630.875" y1="888.9989" y2="908.9989"/><polygon fill="#383838" points="626.875,898.9989,630.875,908.9989,634.875,898.9989,630.875,902.9989" style="stroke:#383838;stroke-width:1.0;"/><!--MD5=[a968c340e51a7ad2e2ae0fcf7de8675d]
+@startuml
+' https://plantuml-documentation.readthedocs.io/en/latest/formatting/all-skin-params.html
+skinparam monochrome true
+skinparam shadowing true
+
+skinparam DefaultFontName "Roboto,sans-serif"
+skinparam DefaultMonospacedFontName "Roboto Mono,monospace"
+
+' https://material.io/design/typography/the-type-system.html
+' Body 2
+skinparam DefaultFontSize 14
+skinparam DefaultTextAlignment center
+skinparam NoteTextAlignment left
+
+' default 1.5
+skinparam ActivityBorderThickness 1
+' default 2
+skinparam PartitionBorderThickness 1.5
+
+:getService;
+note right
+  In any thread.
+  Get on demand only.
+  Do not cache result.
+  Do not request in constructor unless needed.
+end note
+
+if (Is Light Service) then (yes)
+else (no)
+  if (Is Service Declaration Found) then (yes)
+  else (no)
+    :Return ""null"";
+    detach
+  endif
+endif
+
+if (Is Created and Initialized?) then (yes)
+else (no)
+  if (Is Container Active?) then (active)
+    partition "synchronized on service class" {
+      if (Is Created and Initialized?) then (yes)
+      else (no)
+        if (Is Initializing?) then (yes)
+          :Throw ""PluginException""
+          Cyclic Service Initialization;
+          detach
+        else (no)
+          partition "non cancelable" {
+            :Create Instance]
+            note right
+              Avoid getting other services to reduce initialization tree.
+              As less dependencies, as more faster and reliable.
+            end note
+
+            :Register to be Disposed on Container Dispose
+            if Implements ""Disposable""]
+            :Load Persistent State
+            if Implements ""PersistentStateComponent""]
+          }
+        endif
+      endif
+    }
+  else (disposed or dispose in progress)
+    :Throw ""ProcessCanceledException"";
+    detach
+  endif
+endif
+
+:Return Instance;
+
+@enduml
+
+@startuml
+skinparam monochrome true
+skinparam shadowing true
+
+skinparam DefaultFontName "Roboto,sans-serif"
+skinparam DefaultMonospacedFontName "Roboto Mono,monospace"
+
+skinparam DefaultFontSize 14
+skinparam DefaultTextAlignment center
+skinparam NoteTextAlignment left
+
+skinparam ActivityBorderThickness 1
+skinparam PartitionBorderThickness 1.5
+
+:getService;
+note right
+  In any thread.
+  Get on demand only.
+  Do not cache result.
+  Do not request in constructor unless needed.
+end note
+
+if (Is Light Service) then (yes)
+else (no)
+  if (Is Service Declaration Found) then (yes)
+  else (no)
+    :Return ""null"";
+    detach
+  endif
+endif
+
+if (Is Created and Initialized?) then (yes)
+else (no)
+  if (Is Container Active?) then (active)
+    partition "synchronized on service class" {
+      if (Is Created and Initialized?) then (yes)
+      else (no)
+        if (Is Initializing?) then (yes)
+          :Throw ""PluginException""
+          Cyclic Service Initialization;
+          detach
+        else (no)
+          partition "non cancelable" {
+            :Create Instance]
+            note right
+              Avoid getting other services to reduce initialization tree.
+              As less dependencies, as more faster and reliable.
+            end note
+
+            :Register to be Disposed on Container Dispose
+            if Implements ""Disposable""]
+            :Load Persistent State
+            if Implements ""PersistentStateComponent""]
+          }
+        endif
+      endif
+    }
+  else (disposed or dispose in progress)
+    :Throw ""ProcessCanceledException"";
+    detach
+  endif
+endif
+
+:Return Instance;
+
+@enduml
+
+PlantUML version 1.2021.8(Sat Jun 26 08:20:59 GMT 2021)
+(GPL source distribution)
+Java Runtime: OpenJDK Runtime Environment
+JVM: OpenJDK 64-Bit Server VM
+Default Encoding: UTF-8
+Language: en
+Country: US
+--></g></svg>
\ No newline at end of file
diff --git a/topics/basics/plugin_structure/plugin_services.md b/topics/basics/plugin_structure/plugin_services.md
index 1fac41e01..803d92bee 100644
--- a/topics/basics/plugin_structure/plugin_services.md
+++ b/topics/basics/plugin_structure/plugin_services.md
@@ -99,6 +99,12 @@ val projectService = project.service<MyProjectService>()
 
 </tabs>
 
+<procedure title="Getting Service Flow" initial-collapse-state="collapsed">
+
+![Getting Service](getting_service.svg)
+
+</procedure>
+
 ## Project Service Sample
 This minimal sample shows [Light Service](#light-services) `ProjectService` interacting with another project level service `AnotherService` (not shown here).