diff --git a/doc/ProvsArchitecture.md b/doc/ProvsArchitecture.md
index 849c9e9..fcfc33a 100644
--- a/doc/ProvsArchitecture.md
+++ b/doc/ProvsArchitecture.md
@@ -35,7 +35,7 @@ package domain {
     class Service {
       cleanup (): means remove parts (install & configuration) to enable e.g. re-provision in some cases, results in an error otherwise.
       provision (): means install & configure.
-      install (): install packages, files but not configuration files. Fire & forget (re-) installation is posible.
+      install (): install packages, files but not configuration files. Fire & forget (re-) installation is possible.
       configure (): install and apply configuration.
     }
     class Domain
@@ -45,7 +45,22 @@ Application ..> Domain
 
 package infrastructure {
     class Repository
-    class Provs
+    class Provs {
+
+        create<type>(): create a new item - might also have a parameter like: skipIfExisting
+        delete<type>(): delete an item - might also have a parameter like: failIfNotExisting
+        check<type>(): check if an item exists (returns true resp. false)
+        check<type>Content(): check content of item (returns true resp. false), e.g. checkFileContent
+        check<type>Runs(): check if container/service is running (returns true resp. false)
+        start<type>(): start e.g. a container (or a service)
+        stop<type>(): stop a container/service
+        remove<type>(): remove e.g. a container or image
+
+        —————————————————————————————————————————————————————— () 
+        Remark1: types can be e.g.: "file", "dir", "user", "container" (depending on the command)
+        Remark2: References to external software (or modules) should generally follow the external naming conventions.
+        (E.g. for kubectl commands the verbs might include: apply, delete, get, describe, etc)
+    }
 }
 Service ..> Domain
 Service ..> Service