Multiple development systems wth one Production system ? How to control ?

Question

We are currently upgrading a classical landscape (Development - Quality Assurance - Production) from 4.6c into ECC6
A parallel HR project will start as soon as a first ECC6 version is available to develop separately a new "pay" strategy to be in production on 01/2008 but in the meantime the 'old' HR model will continue on the basis landscape untill that date.
Does any of you have a positive experience of  such situations where multiple development systems are living in parallel and must finally deliver one single production ?
Did you mastered the transport strategy via SAP tools (Sap solution manager) or other techniques ?
Thanking you in advance for sharing your experience.

Answer 1

seems to work OK like this
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Testing
  public void buildGUI()
    for(int x = 0; x < 4; x++)
      CommonFrame cf = new CommonFrame();
      cf.setBounds(x*200,100,100,100);
      cf.setVisible(true);
  public static void main(String[] args)
    SwingUtilities.invokeLater(new Runnable(){
      public void run(){
        new Testing().buildGUI();
class CommonFrame extends JFrame
  public CommonFrame()
    super();
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    addWindowListener(new WindowAdapter(){
      public void windowIconified(WindowEvent we){
        Frame[] frames = getFrames();
        for(int x = 0,y = frames.length; x < y; x++)
          frames[x].setExtendedState(JFrame.ICONIFIED);
      public void windowDeiconified(WindowEvent we){
        Frame[] frames = getFrames();
        for(int x = 0,y = frames.length; x < y; x++)
          frames[x].setExtendedState(JFrame.NORMAL);
}