21,605 research outputs found
Survey of Federal, National, and International standards applicable to the NASA applications data services
An applications data service (ADS) was developed to meet the challenges in the data access and integration. The ADS provides a common service to locate and access applications data electronically and integrate the cross correlative data sets required by multiple users. Its catalog and network services increase data visibility as well as provide the data in a more rapid manner and a usable form
Standard formatted data units-control authority procedures
The purpose of this document is to establish a set of minimum and optional requirements for the implementation of Control Authority (CA) organizations within and among the Agencies participating in the Consultative Committee for Space Data Systems (CCSDS). By satisfying these requirements, the resultant cooperating set of CA organizations will produce a global CA service supporting information transfer with digital data under the Standard Formatted Data Unit (SFDU) concept. This service is primarily accomplished through the registration, permanent archiving, and dissemination of metadata in the form of Metadata Objects (MDO) that assist in the interpretation of data objects received in SFDU form. This Recommendation addresses the responsibilities, services, and interface protocols for a hierarchy of CA organizations. The top level, consisting of the CCSDS Secretariat and its operational agent, is unique and primarily provides a global coordination function. The lower levels are Agency CA organizations that have primary responsibility for the registration, archiving, and dissemination of MDOs. As experience is gained and technology evolves, the CA Procedures will be extended to include enhanced services and their supporting protocols. In particular, it is anticipated that eventually CA organizations will be linked via networks on a global basis, and will provide requestors with online automated access to CA services. While this Recommendation does not preclude such operations, it also does not recommend the specific protocols to be used to ensure global compatibility of these services. These recommendations will be generated as experience is gained
Requirement for a standard language for test and ground operations
The basic requirements for a standard test and checkout language applicable to all phases of the space shuttle test and ground operations are determined. The general characteristics outlined here represent the integration of selected ideas and concepts from operational elements within Kennedy Space Center (KSC) that represent diverse disciplines associated with space vehicle testing and launching operations. Special reference is made to two studies conducted in this area for KSC as authorized by the Advanced Development Element of the Office of Manned Space Flight (MSF). Information contained in reports from these studies have contributed significantly to the final selection of language features depicted in this technical report
The simplicity project: easing the burden of using complex and heterogeneous ICT devices and services
As of today, to exploit the variety of different "services", users need to configure each of their devices by using different procedures and need to explicitly select among heterogeneous access technologies and protocols. In addition to that, users are authenticated and charged by different means. The lack of implicit human computer interaction, context-awareness and standardisation places an enormous burden of complexity on the shoulders of the final users. The IST-Simplicity project aims at leveraging such problems by: i) automatically creating and customizing a user communication space; ii) adapting services to user terminal characteristics and to users preferences; iii) orchestrating network capabilities. The aim of this paper is to present the technical framework of the IST-Simplicity project. This paper is a thorough analysis and qualitative evaluation of the different technologies, standards and works presented in the literature related to the Simplicity system to be developed
Quality control and product tracing in ERP systems
Food safety and quality are keys to companies' business survival and great efforts and
resources are devoted to them. This is an on-going challenge, demanding the best control systems and day-
to-day vigilance on farms, in processing plants and throughout the distribution system. The product quality
of the Hungarian meet industry meets the high level international standards, because the Hungarian meet
industry is an export oriented sector. However, the application of computers and information systems still
havenât got enough emphasis in the food sector, although the majority of companies use ERP systems. IT
budgets of Hungarian companies are smaller than of the ones in industrialized countries. They spend 0.49%
of their return from sales on IT operation and development. We find different rates among Hungarian
owners and foreign owners. The Hungarian ones spend less (0.36%), but foreigners spend twice this amount
(0.61) on informatics. Quality control is conducted at several stages of the production flow. The most
important targets are basic materials coming from partners, purchased and processed products and foods.
We have to be able to identify and determine what ingredients there are in the end-products and what the
production and distribution processes were. Sometimes this refers to a process backwards that we have to
conduct when we discover a mistake in the production flow or in the quality of the end-product. Back-
tracing is a six stage flow in the system. Our paper and lecture describes how the ERP system is built-in
food tracing functions and experiences in Hungary
Information-Control Software for Handling Serial Devices in an EPICS Environment
Each accelerator control system has a variety of measurement devices. One of
the most common types of instrument interfaces used for their control is a
serial (RS-232) bus. It is inexpensive and adequate for relatively simple
measurement and control devices such as switchers, amplifiers, voltmeters, and
steppermotors. Since the RS-232 specification is very broad and does not
require uniformity above the basic communication protocol level, one of the
major problems associated with the use of RS-232 is that the command protocol
for each device is unique. This makes it difficult to design generic drivers
for RS-232 and also hampers efforts to design generic troubleshooting methods.
This paper presents software developed independently at three other labs and
integrated into a single system at Jefferson Lab to handle serial devices in a
generic manner. The software is based on the EPICS toolkit and uses a 3-tier
architecture including a common serial driver at the bottom, a top-level
protocol to specify individual device commands in a generic manner, and a
mid-level of software to "glue" the two together.Comment: 3 pages, paper presented at Conference ICALEPCS-2001, San Jose, CA,
November, 200
Middleware architectures for the smart grid: A survey on the state-of-the-art, taxonomy and main open issues
The integration of small-scale renewable energy sources in the smart grid depends on several challenges that must be overcome. One of them is the presence of devices with very different characteristics present in the grid or how they can interact among them in terms of interoperability and data sharing. While this issue is usually solved by implementing a middleware layer among the available pieces of equipment in order to hide any hardware heterogeneity and offer the application layer a collection of homogenous resources to access lower levels, the variety and differences among them make the definition of what is needed in each particular case challenging. This paper offers a description of the most prominent middleware architectures for the smart grid and assesses the functionalities they have, considering the performance and features expected from them in the context of this application domain
EDI control : management and audit issues
https://egrove.olemiss.edu/aicpa_guides/1419/thumbnail.jp
RFCs, MOOs, LMSs: Assorted Educational Devices\ud
This paper discusses implicit social consequences of four basic internet protocols. The results are then related to the field of computer-assisted teaching. An educational on-line community is described and compared to the emerging standard of web-based learning management.\u
Distributed Object Medical Imaging Model
Abstract- Digital medical informatics and images are commonly used in hospitals today,. Because of the interrelatedness of the radiology department and other departments, especially the intensive care unit and emergency department, the transmission and sharing of medical images has become a critical issue. Our research group has developed a Java-based Distributed Object Medical Imaging Model(DOMIM) to facilitate the rapid development and deployment of medical imaging applications in a distributed environment that can be shared and used by related departments and mobile physiciansDOMIM is a unique suite of multimedia telemedicine applications developed for the use by medical related organizations. The applications support realtime patientsâ data, image files, audio and video diagnosis annotation exchanges. The DOMIM enables joint collaboration between radiologists and physicians while they are at distant geographical locations. The DOMIM environment consists of heterogeneous, autonomous, and legacy resources. The Common Object Request Broker Architecture (CORBA), Java Database Connectivity (JDBC), and Java language provide the capability to combine the DOMIM resources into an integrated, interoperable, and scalable system. The underneath technology, including IDL ORB, Event Service, IIOP JDBC/ODBC, legacy system wrapping and Java implementation are explored. This paper explores a distributed collaborative CORBA/JDBC based framework that will enhance medical information management requirements and development. It encompasses a new paradigm for the delivery of health services that requires process reengineering, cultural changes, as well as organizational changes
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