Answer the questions please (true or false)

6. The development and utilization of any complex engineering system typically take place in ten main life cycle phases. (2) 7. Overlaps between the life cycle phases must be avoided in order to use resources sensibly. (2) 8. The term system is often used generically, which can be very confusing, since one person's system can be several layers down in another's system hierarchy. (2) 9. It is much better to get going with system development, instead of thinking too long about the requirements. Requirements always become clear after the job had been done halfway. (2) 10.Errors not fixed during the requirements phase can always be fixed later through feedback, and iteration. (2)