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Crawling and indexing have been considered regarding existing search engines, but whereas high speed crawling has been studied widely, improvements in the speed of indexing have seldom been discussed. Building a fresh information search engine should, however, unify these arguments concerning crawling and indexing. In this report, an index updating process based on a pipeline that unifies crawling and indexing was proposed. The techniques of a distributed index updating process are discussed with regards to a distributed cooperative search engine.