From the angle of cost and benefit,this paper describes two important methods for sharing information resources-online retrieval and Web retrieval.Their current characteristics are qualitatively analyzed.Some inspirat...From the angle of cost and benefit,this paper describes two important methods for sharing information resources-online retrieval and Web retrieval.Their current characteristics are qualitatively analyzed.Some inspirations drawn from cost benefit analysis are given.展开更多
文摘From the angle of cost and benefit,this paper describes two important methods for sharing information resources-online retrieval and Web retrieval.Their current characteristics are qualitatively analyzed.Some inspirations drawn from cost benefit analysis are given.