Quoting Tools from Car Industry Standard IATF16949

FMEA(DFMEA &PFMEA) 
According to the current design of new products, the structural design, hardware design, software design, and potential risks that may occur in the production process are considered in advance, and corresponding measures are taken to reduce the risk value, which can effectively improve the problems that have occurred in the past. Prevent possible problems.
APQP
Similar to APQP, we will make a full testing plan for new product verification, including EMC, EMI, LVD, wireless communication, technical datas, and package drop and vibration test.
PPAP
Refers to providing samples and necessary information, such as PTAP, control plan, flow chart, to clients for recognition and approval before mass production of products to determine whether the specifications have been correctly understood.

Supply Chain Management

What you're doing now is exactly what we've been doing, Etop has 200Nos. qualified supplier for thermostat materials; With very strict new supplier audit and annual audit, site visits and combined with the annual supplier's incoming material yield, all suppliers will be re-rated and reshuffled every year;
This save much time for RD stuffs when they are selecting reliable brand and materials.

Lab

The E-Tob validation lab plays an extreme important role during the product design and validation period. There're abundant lab tests are mandatory carried out during the process.We have all the neccesary facilities and instrument to make sure the thermostats meet the related norm which are request by CE/FCC/UL, the devices indlude the signal generator, network analyzer,spectrum analyzer,group pulse generattor, electric discharge generator,safety tester, RF shiled room, constant humidity and temperature tester..
According to the different test scope the tests are divided to below parts:
Hardware Test Includes EMC/Surge/Power/Safety/Hi-pot test/Static/Radio etc.. 
* Chemical Test        * Salt spray test        * Envrionment Test
* Constant temperature&humidty            *Physical test
* Button/Plastic housing longevity / UV test 
We will make sure all the products are passing related tests before they're entering to the production stage

R&D Verification 

Before the product is officially released, the R&D department will verify the reliability and stability of the product in terms of software, hardware, structure, packaging, certification, etc., with more than 200 test items.
Software: Control logic, Function, Communication, Input & Output detection, Sleep, Interaction, Storage, Clock, APP, etc.
Hardware: Voltage,Power;  Output,Load,High and Low temperature, Salt spray, Surge,Radiation, Conduction,Insulation,EFT,Electric strength etc.
Structure: Tensile Test, Bending Test,Screw Torsion Test etc.
Packaging: Vibration Test,Stacking Pressure, Drop Test, Slope Impact, etc.
Certification: CE(LVD& EMC), RED, ROSH etc. 

Project Evaluation 

After collecting products requirments, the R&D department will organize a project analysis meeting to analyze the product structure and appearance, hardware functions, software functions, certification requirements, parameter indicators, delivery time, risks, and costs etc.