Showing papers on "System integration published in 1976"

Implicit integration for CSMP III and the problem of stiffness

Abstract: The phenomenon of stiffness in differential systems is described, and the problem of instability in the numerical integration of such systems is discussed. The need for implicit integration methods is demon strated together with the consequential requirement for the extensive use of sparse-matrix techniques.A specific implementation of an implicit stiff- system integration routine, STIFFX, based on Gear's algorithm and designed for use with the IBM continuous system simulation language CSMP III is described, and its efficiency is compared with that of the STIFF routine which is a part of CSMP III.

Integrated Systems Control in the Steel Industry. State-of-the-Art Review and Proceedings of the Conference June 30-July 2, 1975

Abstract: Integrated systems control has as its goal the integration of the information processing, decision-making and control functions of an industrial system to achieve increased operating efficiency and productivity, better utilization of resources, improved product quality and other benefits. As the steel industry is well advanced, relative to other industries, in the application of highly computerized systems integration, it was selected as the basis for a first case study. The Review presents both the results of a state-of-the-art survey of integrated systems control in the steel industry and the proceedings of a IIASA conference on the subject. The results motivate a general methodology for integrated control system design based on a hierarchical structuring of the system, incorporating multilevel decomposition and temporal and functional multilayer concepts.

Lessons Learned in USAF Weapon System Acquisition Management: A Case Study Approach

Abstract: : This thesis presents 15 case studies that describe a number of the management problems that typically occur throughout weapon system acquisitions. Specifically, seven aspects of weapon system acquisition are addressed by the cases: procurement planning and selecting acquisition strategy, SPO personnel, managing program changes, support planning, managing total system integration, managing production an eliminating contract/hardware deficiencies, and transferring system responsibility. The cases are designed for classroom support use and contain introductory theoretical material, classroom procedure suggestions, and actual case, and instructor guidance.

Analysis of the Content of Advanced Avionics Maintenance Jobs.

Abstract: : This report is an analysis of the skills and knowledge required to maintain advanced avionics systems on the flight line to provide a basis for evaluating existing training methods and career structure. Since this information was not available from Air Force sources, the authors devised a unique data-gathering procedure. By debriefing maintenance teams as they came off the job, the authors were able to describe in detail the flow of specific job steps. Analysis of this data revealed the importance for job performance of knowledge of the way components of specific avionics systems are tied together (system integration) and the unimportance of knowledge of electronic principles. Thus, training should stress system integration and be specific to particular models of aircraft. These conclusions provided the basis for evaluation and redesign of training.

Custom Programming/Analysis in the Small Business Environment

Abstract: As has often been stated, a business of any size can be considered as a general system,8,11,13,28,29,20,31with identifiable external inputs and outputs typically consisting of goods, services, energy, money, and information. Internally, a business consists of several interacting parts which may be considered as subsystems, each of which has inputs from external sources or from other subsystems and outputs to external sinks or to other subsystems. Usually, each subsystem requires information as an input and, in turn, generates information as an output. As a business becomes larger and more complex, the need for information becomes greater and more critical.