2,798,516 research outputs found

    MST radar data-base management

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    Data management for Mesospheric-Stratospheric-Tropospheric, (MST) radars is addressed. An incoherent-scatter radar data base is discussed in terms of purpose, centralization, scope, and nature of the data base management system

    Data Base Management Systems Panel Workshop: Executive summary

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    Data base management systems (DBMS) for space acquired and associated data are discussed. The full range of DBMS needs is covered including acquiring, managing, storing, archiving, accessing and dissemination of data for an application. Existing bottlenecks in DBMS operations, expected developments in the field of remote sensing, communications, and computer science are discussed, and an overview of existing conditions and expected problems is presented. The requirements for a proposed spatial information system and characteristics of a comprehensive browse facility for earth observations applications are included

    Assessment of the solar-terrestrial data base management system

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    Members of the space science community used the present MSFC NEEDS network. The design and development of improvements and extension of the NEEDS network were designed and development of improvements and extension of the NEEDS network were discussed

    A method for data base management and analysis for wind tunnel data

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    To respond to the need for improved data base management and analysis capabilities for wind-tunnel data at the Langley 16-Foot Transonic Tunnel, research was conducted into current methods of managing wind-tunnel data and a method was developed as a solution to this need. This paper describes the development of the data base management and analysis method for wind-tunnel data. The design and implementation of the software system are discussed and examples of its use are shown

    Data Base Management for Geographic Information Systems

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    A logical approach to determine the data base 'order of entry' is presented which utilizes management techniques and 'consideration factors'

    The NBS data management technology program

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    The National Bureau of Standards (NBS) Data Management Technology Program is discussed. The NBS Data Management Technology Program addresses major problems encountered during the following stages of an application's lifetime: requirements analysis and data base design, system selection and implementation, operations management and conversion. Products developed include standard software specifications, guides to best practice, standard data elements and representations, and reports documenting the experiences of other organizations as they attempt to improve the management of their computing resources. Data base Laboratory facilities are maintained for the investigation and analysis of state of the art data base technology. These facilities support collaborative testing with researchers, vendors, users, and standards developers

    A database management capability for Ada

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    The data requirements of mission critical defense systems have been increasing dramatically. Command and control, intelligence, logistics, and even weapons systems are being required to integrate, process, and share ever increasing volumes of information. To meet this need, systems are now being specified that incorporate data base management subsystems for handling storage and retrieval of information. It is expected that a large number of the next generation of mission critical systems will contain embedded data base management systems. Since the use of Ada has been mandated for most of these systems, it is important to address the issues of providing data base management capabilities that can be closely coupled with Ada. A comprehensive distributed data base management project has been investigated. The key deliverables of this project are three closely related prototype systems implemented in Ada. These three systems are discussed

    Data base management system analysis and performance testing with respect to NASA requirements

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    Several candidate Data Base Management Systems (DBM's) that could support the NASA End-to-End Data System's Integrated Data Base Management System (IDBMS) Project, later rescoped and renamed the Packet Management System (PMS) were evaluated. The candidate DBMS systems which had to run on the Digital Equipment Corporation VAX 11/780 computer system were ORACLE, SEED and RIM. Oracle and RIM are both based on the relational data base model while SEED employs a CODASYL network approach. A single data base application which managed stratospheric temperature profiles was studied. The primary reasons for using this application were an insufficient volume of available PMS-like data, a mandate to use actual rather than simulated data, and the abundance of available temperature profile data

    USING DATA BASE MANAGEMENT SYSTEMS IN STATISTICAL DATA PROCESSING

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    National and international statistical bureaus produce ca. 25,000 tables for publication each year, based on hundreds of inter-related object-types with thousands of attributes. It would appear that this environment should be well suited to the application of data base management techniques for the administration of the data. This paper presents a data oriented model of the statistical production process which is used as a basis for a review of the state of experience within statistical offices with commercially available data base management systems. We conclude with a presentation of some important data management facilities which must be enhanced or developed in order to support statistical production processing.Information Systems Working Papers Serie
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