1. To accept customer’s SPEC after confirming and transfer the content of SPEC into internal design specification , checking elect design, tracing in PCB 2. Plan-making ,material-selecting and testing them, making the test-regulation, releasing a draft EE part list and all approval Data3. To make handmade function sample by draft design for function test, finding its point and improving. Design review, test, validation and customer approval. Assist the pilot run by ENG leading. 4. Taking EMC(include EMI,ESD,EFT,RS）,Safety test ,debug. 5. Design output: releasing all files about elect；Design change after mass production by client’s or market demand