Workflow Application

Without "ports"

• Task A:

  • exe = "/bin/echo"
  • args = [ "Console" ]
  • output: "Console"

• Task B:

  • exe = "/bin/echo"
  • args = [ "Cowboy" ]
  • output: "Cowboy"

• Relationships:

  • Task A -> Task C
  • Task B -> Task C

• Task C:

  • exe = "/bin/echo"
  • args = [ $FIRSTNAME, $LASTNAME ]
  • output = ?????

Conclusion: Sorry, no cookie, you gotta be able to jam with the console cowboys in cyberspace!

With "ports"

• Task A:

  • Output: port:StringA(type:String) = "Console"

• Task B:

  • Output: port:StringB(type:String) = "Cowboy"

• Task C:

  • Input: port:FirstName(type:String)
  • Input: port:LastName(type:String)

• Relationships

  • Task A:StringA -> Task C:FirstName
  • Task B:StringB -> Task C:LastName

• Task C:

  • exe = "/bin/echo"
  • args = [ "Hello, ", $FIRSTNAME, " ", $LASTNAME, "!" ]
  • output = "Hello, Console Cowboy!"

Conclusion: Awesome!! Come jam with the console cowboys in cyberspace!