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What does this "over time" here mean? "Over the contracted time of service"? If it's just a natural flow of time, it wouldn't make much sense.
go2-6p)In a world where everyone is connected via cyberspace and information is being exchanged at the speed of light, many companies decide to adopt a new business model. For example, while Encyclopedia Britannica still charges $1,395 for its twentytwo-volume set of books, the company sells far fewer physical books. Instead, the company puts the books' contents on the World Wide Web, where information can be updated and accessed continuously. Users now pay a subscription fee to access the information over an extended period of time. The company has thus made the transition from selling a physical product to a buyer to providing the user access to a service over time.
Last edited by keannu; 19-Apr-2013 at 02:05.
I just concluded that it means "over a certain period of time as contracted". If you have another opinion, please let me know.