referring to fig1 , which shows a correlated implication set constituted from implication logics and business terms . a logic implication relation of the present invention universally exists within a data structure , such as a primary key being the implication relation , a group of associated implication logic can constitute a correlated implication set , for instance , upon a record in lot data file recording a relation between lot number and product number , such as a lot number of certain data as a , then the product number of the lot is b with no exception , and the implication logic can be seen thereof . when fields have an equal representative lot number within the database , and have titles having identical definition , then a transitive property ( a -& gt ; b , b -& gt ; c then a -& gt ; c ) can be employed , and thus deriving other values of fields therefrom . hence , a group of business terms can be grouped in a natural correlation , and thereby take on a level relation , whereby a lower level field can be known by derivation from an upper level . referring to fig2 , which shows a logic implication block diagram according to the present invention . the query method of an embodiment of the present invention embraces following system links : a . interface a : definition data for the business terms , fetch method and authorization limits of access . b . interface b : import the business terms from another term provider of a query service center through a network . c . interface c : fetch the business terms from the aforementioned interface a , which can then be utilized to construct the query , and send contents of the query to a data request coordinator and display results . d . term receiver : save complete definition of the term in a dictionary . e . rule receiver : save complete definition of an implication rule in a rule pool . g . local date collector : filter query results of local terms , and simultaneously send to the data request coordinator . h . remote data collector : send remote term and query condition to the appropriate query service center , and simultaneously receive remote query results . i . fetch data : physically fetch data from the database or data source . 1 . receive query , implication set , and analyze the term provided locally or remotely . 2 . separately submit query request to a local or a remote end . 3 . receive data set sent back from the local end or the remote end . 4 . integrate data , implement final filters . 5 . send results to the interface c . according to the aforementioned implication theory , a query flow process of the present invention comprises following steps : 1 . a user first links up with the query service center through the interface c ; 2 . the query is assembled based on the terms provided by the query service center ; 3 . contents of the assembled query and an account number password are sent to the query service center ( data request coordinator ); 4 . after analyzing the contents of the query , if part of the term is provided by another query service center , then the query request is submitted to that center , if the term definition is provided by the query service center originally linked to , then that which is most pertinent is determined and covers the implication set of all data fields . 5 . based on the implication logic and definition in the implication set , acquire data from the data source . 6 . integrate the data sent back from the other query service center , filter that which conforms to conditions , and send back to the user . the query method of the present invention is provided with at least following advantages : 1 . diversification of sources , not restricted to databases , moreover , tool employed for output can be an application program , a report form , a chart , and so on , and is thus provided with considerable flexibility . 2 . the business terms and the authorization limits of existing implication rules can accordingly resolve problems of abuse of open database connectivity ( odbc ), moreover , conditions of access to each set of data can be set for the query . 3 . process generated by the result can be analyzed , query actions of the user can be recorded , and moreover , the same query is not limited to one source database . 4 . the query can be interrupted if taking a long time , and the data from business terms provided by servers of other companies can be easily integrated , moreover , the query method can be expanded to utilize the internet , whereby the user can acquire the query result from a group of keywords within a specific application . in addition , the user within a business can on their own accord flexibly set query contents and conditions , and moreover , information between businesses can be easily integrated , thereby realizing non - requirement to write additional programs . furthermore , the present invention embodies originality , and is of a functional design ; accordingly , a patent application is proposed herein . it is of course to be understood that the embodiments described herein is merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims .