Explain the design principles.

• The design process should not endure from tunnel vision.
• The design should be traceable to the analysis model.
• Design should not reinvent the wheel.
• The design should minimize the intellectual distance among the software and problem as it exists in the real world.
• The design should be structured to degrade gently, even when aberrant data, events or operating conditions are encountered.
• Design is not coding, coding is not design.
• The design should be assessed for quality as it is being formed, not after the fact.