The differences between modern digital products and traditional industrial products in interface design were compared.

As so many digital products are pouring into public’s life and users begin to care about user interactive experiences,product designer should think more about the interactive modes of digital products.

"Thin" as an unique product design language of mobile digital product design, is under the corresponding science and technology support, from the beginning of the "long、big、thick、heavy" mobile digital products design, through the integration of technical art and shape art, innovation of design style, evolved from the development of consumer aesthetics、consumer psychology and many other aspects.

There are at least 100 billion lines of legacy codes written in COBOL up to now.

In this paper,we mainly explore the problem of code selection in code generation for embedded digital signal processor.

To analysis the advantage and disadvantage of existing measure method,integrate a practice case,put forward a new method of integrate a traditional optic instrument,modern digital product and computer intelligent identifing technic.

Along with gradual maturity of digital technology, the digital era is coming; digital products will become the predominant product at 21st century.

The way we work and leisure has led to great changes along with more and more digital products entering into our life,and digital product design itself is also constantly moving forward.