What is the meaning / definition of Next Generation Seamless, in the hospitality industry?

NGS stands for: Next Generation Seamless.
It is a hotel reservation systems technology of data sharing across the web.

NGS integrates the hotels CRS / PMS information directly with the GDS. 

Meaning the user (travel agent) can recall data (rates and availability) in real time which is identical to the hotel’s own data. 
That way the information is submitted quickly, without delays and errors, resulting an increased confidence and usability by agents.

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Synonyms