What information can be created before the emergency?

the information that can be created before the emergency is a radio or bring supplies to people and bring food to them if they need them .

What essential information needs to be communicated during a disaster or emergency?

the essential information that can be used is msn messenger skype text messaging normal talking and talking during  game which has a chat you can use a radio u can use Gmail.

What forms of communication have been used during recent disasters e.g Hurricane Katrina, the Asian Tsunami?

the communications that have been used recently are cell phone computers e-mail and many other stuff.

design cycle

In the investigation you have to identify the problem and develop the design brief and formulate a design specification and in your plan you have to design a product solution and plan a product solution and in the creation you have to follow the plan and create the product solution and use appropriate techniques and equipment and when you evaluate you have to evaluate the product solution and you have to evaluate their use of the design cycle.