Sequence of Method calls : Design Pattern / OO Design

Problem

I am working on a UI framework which needs the methods and the page objects to be called dynamically in a sequence based on the input sequence. I mainly want to substitute the Switch / If else with a better OO way to make it easier for extension

All the pages extend a Base Abstract class and the methods extend another base Action class. I have annotations to identify classes and the methods. I need to build a list of methods which will be invoked by the framework in the same order for each test case.

I am using BDD for the input i.e.

Scenario : Test the transaction successful page

1. Given user logsin
2. And performs some actions
3. Then the transaction successful page is displayed

So, each step is mapped to a Action class which performs a set of Actions. I am using annotations to find the Action class.

//Sample JBehave Steps Pojo
@Given
public void login(String user)
{
 //Action to be performed is Login. Search for the Login Action class

}

@And
public void performSomeAction(String action , String component)    
{
Find the class representing this action
}


//Page Objects
ClassMap(name="loginPage")
public class LoginPage extend Page
  {

    MethodMap(action="test"  , component="test")
    public BaseStep login extends BaseStep
    {
       // returns a login step
    }

  }

    //Building the method sequence
    //Now each Test Step is mapped to a class
    for(Action : Actions to be performed)
    {
     //Check if the action / component maps to a method and a class
    switch(action)
   {
      case VERIFY:
         //Invoke the Method Verify
      case LOAD :
         //Invoke the Method Load
      case ACTION1 :
         //Perform some action
   }

I am looking for a design pattern to implement the same without using switch else. A good design pattern which would fit in is what I would be looking at.