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Structured tools and techniques were applied to the software design process of an information system for a local health care agency. The design process was based upon a hierarchical decomposition of user requirements into detail system specifications. ...

The main purpose of this paper is to discuss about RTFILE and its utilities.

In many dedicated microprocessor applications, a full-feature operating system is not required. A methodology is presented for the design of extremely minimal operating systems for such applications. The emphasis is on providing the most basic ...

In order to provide cost effective applications programming for small businesses, it is necessary to have the proper programming tools, including a structured high level language, file access methods, terminal interface routines, and a data dictionary.

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The file system and structure of a single-user operating system is described. The system is designed to run in a laboratory setting on a small microcomputer connected to a network with both private and network disk storage.

Real-time software design has become more difficult as devices have become more complex. A two-dimensional categorization of real-time software is presented which has proven useful in high-level design.

Rural areas have a high variance in quality of life attributes. Despite positive attributes such as quiet, clean air, woods, lakes, slower pace and other amenities, there are numerous negative attributes stemming from isolation, such as limited numbers ...

The automatic control of electrical system (ACES) for aircraft shipboard applications was first demonstrated at the Westinghouse Aerospace Electrical Division in 1970 [4]. This system was implemented on a single computer which controlled the hardware ...

For the realization of the means to develop more reliable software for the microcomputers especially in real time environments, we design a hardware tool called “software-fault detector” which detects software faults such as misaccess to an element ...

This paper describes an attempt to implement a large but well understood program on a microcomputer. The problems encountered are a lesson to any who think that the microprocessor revolution has provided full computer facilities at bargain prices.

This paper presents the results of a survey of Database Management Systems (DBMS) available on microcomputer systems where the total cost of hardware plus software is less than $25,000. Most of the information was obtained from published materials and ...

In this paper we describe the design and implementation of a high-level query language FQUERY which applies the concepts of the functional data model to the retrieval of information from relational databases created on a small PDP-11 system by the RISS ...

The purpose of this paper is to describe the video graphic query facility's database design in terms of the query capabilities it orchestrates. The next section of the paper discusses the background and capabilities to be provided by the video graphic ...

The Automated Desk is an online, spatial interface to a time-shared computer utility. It supports a user in organizing, locating, and handling computerized information and tools. Naive computer users benefit from the ability to use the power of an ...

The field of computer-aided systems analysis and design is still very young and therefore, as yet, there are few automated aids in existence. Progress, however, is now being made in computer-aided techniques to be used in the development of information ...

Designed during the 1960's as a research tool for the field of information retrieval, the SMART system has been operating on an IBM 370 since 1974. SMART is now being enhanced, redesigned, and programmed under the UNIX operating system [28] on a DEC VAX ...

MESSIDOR is an interactive information retrieval system. It differs from current systems in that it allows the simultaneous search of several bibliographic databases. The databases may be on different sites and may use different query languages (MISTRAL,...

A relational database system based on the principles of functional, data-driven computation is proposed. An architecture composed of a large number of independent, asynchronously operating processing units, each equiped with a separate memory unit ...

In this paper we present PEPIN, a relational data base management system implemented on microcomputers, written in PASCAL and developped by the performance evaluation project at INRIA.

At the moment, as we work towards a totally distributed system, the ...

PEIRCE is an interactive relational database management system intended for mini and microcomputers, with an extensible command facility, QUERY, based on Codd's relational algebra and supporting a clerk oriented interface.

PEIRCE contains three major ...

This paper describes the design and implementation of PEDMS. Part B describes design objectives, resulting system architecture and interfaces to user and database administrator. Part C concentrates on the implementation of PEDMS, discussing the ...

The purpose of this paper is to discuss the development and use of microcomputer database management system and choices for design and implementation are discussed. The development of a substantial piece of software, designed for modest machines, is ...