Marshall Avionics Testbed System (MAST)

Work accomplished in the summer of 1989 in association with the NASA/ASEE Summer Faculty Research Fellowship Program at Marshall Space Flight Center is summarized. The project was aimed at developing detailed specifications for the Marshall Avionics System Testbed (MAST). This activity was to include the definition of the testbed requirements and the development of specifications for a set of standard network nodes for connecting the testbed to a variety of networks. The project was also to include developing a timetable for the design, implementation, programming and testing of the testbed. Specifications of both hardware and software components for the system were to be included

Acquisition plan for Digital Document Storage (DDS) prototype system

NASA Headquarters maintains a continuing interest in and commitment to exploring the use of new technology to support productivity improvements in meeting service requirements tasked to the NASA Scientific and Technical Information (STI) Facility, and to support cost effective approaches to the development and delivery of enhanced levels of service provided by the STI Facility. The DDS project has been pursued with this interest and commitment in mind. It is believed that DDS will provide improved archival blowback quality and service for ad hoc requests for paper copies of documents archived and serviced centrally at the STI Facility. It will also develop an operating capability to scan, digitize, store, and reproduce paper copies of 5000 NASA technical reports archived annually at the STI Facility and serviced to the user community. Additionally, it will provide NASA Headquarters and field installations with on-demand, remote, electronic retrieval of digitized, bilevel, bit mapped report images along with branched, nonsequential retrieval of report subparts

Full-scale system impact analysis: Digital document storage project

The Digital Document Storage Full Scale System can provide cost effective electronic document storage, retrieval, hard copy reproduction, and remote access for users of NASA Technical Reports. The desired functionality of the DDS system is highly dependent on the assumed requirements for remote access used in this Impact Analysis. It is highly recommended that NASA proceed with a phased, communications requirement analysis to ensure that adequate communications service can be supplied at a reasonable cost in order to validate recent working assumptions upon which the success of the DDS Full Scale System is dependent

MicroComputer and Local Government

In 1976, two young Californians named Steve Jobs and Steve Wozniak started a revolution. It was a quiet revolution... no shots were fired... no demonstrations occurred... there were no casualties, but it was a revolution nevertheless... a revolution that will have long-lasting results. That year these two young men developed the Apple, the first commercially successful microcomputer

Spacelab cost reduction alternatives study. Volume 2: Final briefing

For abstract, see N76-24315

Advanced flight control system study

The architecture, requirements, and system elements of an ultrareliable, advanced flight control system are described. The basic criteria are functional reliability of 10 to the minus 10 power/hour of flight and only 6 month scheduled maintenance. A distributed system architecture is described, including a multiplexed communication system, reliable bus controller, the use of skewed sensor arrays, and actuator interfaces. Test bed and flight evaluation program are proposed

An Exploratory Study of Organizational Procurement Policies for Personal Computers

Recent literature suggests that microcomputers will be quickly adopted by organizations, often without forethought as to the appropriate policies that should be followed in such adoption. An exploratory study of five medium-sized city governments reveals that, at least in some kinds of organizations, carefully thought-through policies for adoption of personal computers are being followed. Compatibility is the main problem often brought up by professionals as a reason for the need for a procurement policy. This problem is explored and the reasons for the development of these policies are discussed

GOSIP overview

The U.S. Federal Government has mandated use of the International Standards Organization`s Open Systems Interconnection (OSI) protocols throughout all federal computer network services and products. A Federal Information Processing Standard (FIPS) was adopted February 15, 1989 and enforcement began August 15, 1990. This FIPS describes, in publication 146, national policy mandating use of a functional profile of OSI approved protocols relevant to the federal government. Law requires all federal agencies purchasing network services and products to specify the Government OSI Profile, called GOSIP. This standard is compulsory and binding for all procurements of new networking products and services and for major upgrades to existing computer networks. This paper provides a discussion of GOSIP