Software in formation base is the main technique of the integration of software engineering environment.Data flow diagram tool is an important software tool to support software requirement analysis phase.This article...Software in formation base is the main technique of the integration of software engineering environment.Data flow diagram tool is an important software tool to support software requirement analysis phase.This article introduces the functions,structures of a Software Information Base(SIB),and a Data Flow Diagram tool first.The E-R data model of SIB and its integration with Data Flow Diagram tool are emphatically described.展开更多
This paper introduces the Scientific Electronic Library Online (SciELO) program and its three main objectives. Then the paper presents the methodology of open access to scientific information by the SciELO. At last, i...This paper introduces the Scientific Electronic Library Online (SciELO) program and its three main objectives. Then the paper presents the methodology of open access to scientific information by the SciELO. At last, it shows the perspectives of open access in developing countries.展开更多
文摘Software in formation base is the main technique of the integration of software engineering environment.Data flow diagram tool is an important software tool to support software requirement analysis phase.This article introduces the functions,structures of a Software Information Base(SIB),and a Data Flow Diagram tool first.The E-R data model of SIB and its integration with Data Flow Diagram tool are emphatically described.
文摘This paper introduces the Scientific Electronic Library Online (SciELO) program and its three main objectives. Then the paper presents the methodology of open access to scientific information by the SciELO. At last, it shows the perspectives of open access in developing countries.