Yet a faulty transmission system has already delayed production for a year – Mr Musk blames a design decision by the first CEO, who left under a cloud late last year.

Before you begin to design the architecture of your whole system, you have to make the following decision — when to use mobile Web services and when not to.

Take data warehouse as foundation, with the aid of on Line Analytical Processing and data Mining technology, the composition and design of enterprise Decision Support System are put forward.