planned obolescence

• What is planned obsolescence?

  Producing a product for a specific time span
• Why is planned obsolescence used in product design?

  To allow newer products to succeed older versions
• What does 'cradle to cradle' refer to?

  A concept of product lifecycle management
• What is the goal of the 'cradle to cradle' concept?

  To put a product to good use at its life end
• How does 'cradle to cradle' differ from traditional product lifecycle approaches?

  It focuses on creating new products from old ones