PlantUML

participant Bob [[http://www.yahoo.com]]
Bob -> Alice : [[http://www.google.com]] hello

class Dummy [[http://www.yahoo.com]]
Object <|-- Foo
class Foo {
  [[http://www.google.com]]
  + methods1() [[http://www.yahoo.com/A1{Some explainations about this method}]]
  + methods2() [[http://www.yahoo.com/A2]]
}
 
class Foo2 {
  + methods1() [[http://www.yahoo.com/B1]]
  + methods2() [[http://www.yahoo.com/B2]]
}
 
class Object {
  [[http://www.yahoo.com]]
}

:Foo:
note left of Foo {
[[http://www.google.com]]
This is a note
}

note right of Foo {
Yet another link to [[http://www.google.com]] as demo.
You can also <u>[[http://www.yahoo.fr specify a text]]</u> for the link.
And even <u>[[http://www.yahoo.fr{This is a tooltip} add a tooltip]]</u> to the link.
}

Dummy -> Alice : foo1
ref over Alice, Dummy : [[http://www.google.com]] Foo2

Alice -> Bob : hello

ref over Alice, Bob
  [[http://www.google.com]]
  this is a
  reference over
  Alice and Bob
end

skinparam titleBorderRoundCorner 15
skinparam titleBorderThickness 2
skinparam titleBorderColor red
skinparam titleBackgroundColor Aqua-CadetBlue

title Some Title

rectangle "<i>Platform engineer</i>" as buildDeployDevOps <<role>>
rectangle "**Success**" as canBuildProdApp <<success>>

center footer Generated for demonstration

header
<font color=red>Warning:</font>
Do not use in production.
endheader

skinparam padding 0
skinparam nodesep 30
skinparam ranksep 30

/' Default is splines (curved lines) '/
skinParam lineType ortho
skinparam linetype polyline

skinparam arrowColor cornflowerblue
skinparam arrowThickness 1.5
skinparam shadowing false
skinparam defaultFontName "Comic Sans MS"

skinparam rectangle<<recomm>> {
  backgroundColor business
}

skinparam rectangle<<choice>> {
  backgroundColor bisque
}

skinparam rectangle<<option>> {
  backgroundColor<<option>> gainsboro
}

 
/' Path to all your images (optional) '/
!define AWSPuml ../plantuml/lib/aws/dist

/' Path relative to above path '/
!define awsLogo AWSPuml/../aws-cloud.png`

rectangle "<img:awsLogo{scale=0.4}>" <<awsGroup>> {    
  originAccessId .> webserver : provides secure access to
}

' Start of line comment
class Foo { /' end of line comment '/

!unquoted function $row($name, $type)
$cell($name, $type) |
!endfunction

!unquoted function $cell($name, $type)
!if ($type == "r")  /' recommended '/
!return "|<#business> " + $name
!elseif ($type == "o") /' optional '/
!return "|<#gainsboro> " + $name
!else /' consider '/
!return "|<#white> " + $name
!endif
!endfunction

/' Calling a function '/
note as mobileFrameworks
 $row(Flutter, r)
endnote    

hide stereotype
hide empty description

/' File A '/
!includesub ../learning-pathway.lib.iuml!LEGEND

/' learning-pathway.lib.iuml '/
!startsub NOT_USED
skinparam note {
   backgroundColor #beige
   backgroundColor<<warning>> #red
   shadowing false /' not working '/
   borderColor #beige
}
!endsub

!startsub LEGEND
skinparam legendBackgroundColor #transparent
skinparam legendBorderColor #white
legend top left
| Legend |
|<#bisque> Pick-one |
|<#business> Recommended |
|<#gainsboro> Optional |
|<#white> Also consider |
endlegend
!endsub