During the vector quantization of a color image,three monochrome images separated from the color image were segmented into blocks first,then each block was coded with the shared codebook generated in advance,meanwhile for every n color image block,by changing the index s parity of one monochrome image block of one color image block,log_2(n+1)bits of watermarking information were embedded.

An iterative codebook sharing algorithm for MSVQ(multiple stage vector quantization) was developed to reduce the codebook size for storage and searching.

The current status and disadvantage of industry-wise normal code sharing solution is analyzed.

Based on the fact that the international civil aviation industry has witnessed, since the 1990s, a structure-reshuffling through international cooperation among airlines to extend their businesses, the paper holds that such cooperation in terms of code sharing poses a great challenge to the whole aviation industry while promoting its overall development.

To deal with differences existing in various fields,platforms and domains,the hierarchy of shared ontology and local ontology was designed.

This paper focuses on how to analyze PSM based on shared ontology through using extended quality function deployment method, and create representation of PSM based on shared concept model, domain characteristics dictionary and XML syntactic model, which provide a meaningful theoretical and practical way.