scholarly journals Electronic Navigational Charts: International Standards and Map Projections

2020 ◽  
Vol 8 (4) ◽  
pp. 248 ◽  
Author(s):  
Athanasios Palikaris ◽  
Athanasios K. Mavraeidopoulos
Keyword(s):  
Information Systems ◽  
International Standards ◽  
International Maritime Organization ◽  
Map Projections ◽  
Electronic Chart ◽  
Technical Specifications ◽  
Gis System ◽  
Marine Navigation ◽  
Geospatial Databases ◽  
Selection Of

Electronic navigational charts (ENCs) are geospatial databases, compiled for the operational use of Electronic Chart Display and Information systems (ECDIS) according to strict technical specifications of the International Hydrographic Organization (IHO). ECDIS is a GIS system designed for marine navigation according to the relevant standards of the International Maritime Organization (IMO). The international standards for ENCs and ECDIS, issued by the IHO and IMO, cover many aspects of the portrayal of ENCs in ECDIS but do not specify or recommend map projections. Consequently, in some cases, the unjustified employment of map projections by the manufacturers has caused certain functional drawbacks and inadequacies. This article reviews, evaluates and supplements the results of earlier studies on the selection of map projections for the depiction of ENCs in ECDIS and proposes a reasonable set of suitable projections with pertinent selection/implementation rules. These proposals took into consideration that ECDIS users (navigators) are not GIS experts or professional cartographers and consequently, the proposed election/implementation rules have to be simple and straightforward.

Design and Implement of Human-Computer Interaction Interface for Electronic Chart

2012 ◽  
Vol 630 ◽  
pp. 207-211
Author(s):  
Wei Dong Zhou ◽  
Meng Meng Liu
Keyword(s):  
Human Computer Interaction ◽  
Design Principles ◽  
International Standards ◽  
Interaction Interface ◽  
Electronic Chart ◽  
Marine Navigation ◽  
Computer Interaction

With the development of modern marine navigation technology, the importance of electronic chart is highlighted. As an agent and communicating window between people and electronic chart, the human-computer interaction interface is turning towards humanization and intelligence. In this paper, a compact, perspicuous and easily to be operated human-computer interaction interface is given based on the study and analysis about the design principles of human-computer interaction interface and international standards for electronic chart. And this interface is realized by using the VC++ technology.

scholarly journals Adding value to ENCs: Land features

2019 ◽  
Vol 1 ◽  
pp. 1-1
Author(s):  
Shachak Pe’eri ◽  
Noel Dyer
Keyword(s):  
Information Systems ◽  
Performance Standards ◽  
International Maritime Organization ◽  
Crossing Over ◽  
Water Access ◽  
Content Structure ◽  
Positioning Systems ◽  
Topographic Features ◽  
Key Stakeholders ◽  
Electronic Chart

<p><strong>Abstract.</strong> In the 1990’s, the International Maritime Organization (IMO) adopted the International Hydrographic Office’s (IHO) S-57 performance standards for Electronic Navigation Charts (ENC), which enforce standardized content, structure, and format. The IMO also revised its Safety of Life at Sea (SOLAS) chapter V regulations to require Electronic Chart Display and Information Systems (ECDIS) onboard certain SOLAS class vessels, starting from 2018. These systems allow for navigating with ENC data, which has several advantages over paper charts; however, many mariners still prefer traditional paper or raster charts. Through the feedback of key stakeholders such as local pilot associations, it has become apparent that the preference for raster or paper charts is due to the inclusion of non-critical S-57 land features. These S-57 land features, which are typically not added to ENC products, such as roads and elevation contours, can supplement navigational positioning systems by providing visual references, particularly when other landmarks (e.g., spot elevations on major topographic features) are not present on the ENC. Moreover, charting roads on ENC products can be useful for locating water access points. This paper discusses the addition of roads and land elevation contours to NOAA’s re-schemed ENC suite in an effort to supplement currently charted marine features and land features crossing over water. General cartographic guidelines have also been developed for the representation of these features through ENC scales (i.e., usage bands 3 to 5). Additionally, this paper includes a discussion on the benefits and challenges of incorporating publicly available land transportation data versus traditional sources on ENC products.</p>

ECDIS Sea Trials

1992 ◽  
Vol 45 (1) ◽  
pp. 19-25
Author(s):  
J. A. Spaans
Keyword(s):  
Information Systems ◽  
Performance Standards ◽  
International Maritime Organization ◽  
Electronic Chart

In 1989 the International Maritime Organization (IMO) published its Provisional Performance Standards (PPS) for ECDIS (Electronic Chart Display and Information Systems) and asked member governments to assess these standards and submit their findings to the Sub-Committee on Safety of Navigation. IMO intends to finalize the standards in 1993.

Skills vs. Concepts: A Comparison of Practitioners' and Educators' Preferences for Accounting Information Systems Proficiencies

2015 ◽  
Vol 10 (1) ◽  
pp. 5-25 ◽  
Author(s):  
Jack L. Winstead ◽  
Mitchell R. Wenger
Keyword(s):  
Information Systems ◽  
Business Cycles ◽  
New Technologies ◽  
Accounting Information ◽  
Accounting Information Systems ◽  
Public Practice ◽  
Differences Of Opinion ◽  
Accounting Software ◽  
Computer Operation ◽  
Selection Of

ABSTRACT This study investigates whether AIS instructors' selection of topics adequately prepares graduates for the expectations of employers seeking candidates who can adapt to the pace of technological change. As businesses adopt new technologies, stakeholders of the accounting profession must periodically reassess educational needs in the area of accounting information systems (AIS). Because AIS is a field that encompasses a wide variety of conceptual and skill-based topics, the selection of course topics can result in a “gap” between what academics and CPA firms expect from new accountants. Given the variety of topic areas, do academics and CPAs agree on which ones to emphasize, or what levels of proficiency are appropriate for each topic? In this study, academics and accountants, primarily in public practice, completed identical surveys regarding desired levels of proficiencies. The results suggest agreement on desired levels of proficiency regarding computer operation and use of accounting software to complete basic tasks and create reports, while suggesting differences of opinion in six other areas (understanding business cycles in an electronic environment, understanding data-sharing technologies, using XBRL, comprehending business needs and how technology could solve problems, understanding e-commerce, and the basics of safeguarding electronic accounting records). Participants concluded by offering observations about the strengths and weaknesses of newly employed accountants.

scholarly journals ASTUDYON THERECORDOF EVALUATINGTHE SUPPLIERSACCORDING TO THE CONCEPT OF QUALITY AND BENEFITING FROM IT IN PRACTICE IN AL-FURAT STATE COMPANY AND FINDING POSSIBLE PROPOSALS FOR ITS DEVELOPMENT

2020 ◽  
Vol 12 (2) ◽  
pp. 81-92
Author(s):  
Ashwaq Abdul-AmeerNsiaf ◽  
Keyword(s):  
Quality Management ◽  
Quality Management System ◽  
International Standards ◽  
Iso 9001 ◽  
Public Database ◽  
Proper Selection ◽  
Public Companies ◽  
The Public ◽  
On Demand ◽  
Selection Of

Success in selecting the best among the sources of supply is one of the most important factors in the efficiency of the procurement activity in the company, because the proper selection of the source of the supply significantly affect the achievement of what is desired by the factors of quality, quantity, price and service, and the ability of the competent supplier to meet everything associated with this Factors of commitments, hereby supporting the procurement function's efforts to fully discharge its responsibilities, and in view of adopting of Al-Furat company quality management system by applying the standards of ISO (9001: 2015) and purpose of getting the on-demand benefits from the application of international standards regarding record of evaluating the suppliers Therefore the research addresses to studying the reality of the suppliers' record in evaluation accordance with the quality concept in Al-Furat Sate Company for Chemical and Pesticide Industries,proposals for its development through evaluating the suppliers on realistic and logical basis and activating it in practice and a proposal to generalize the evaluation of Contractors suppliers to the public companies affiliated to the Ministry of Industry and Minerals and other bodies through coordination with the Ministry of Planning and to provide a public database officially approved on the official sites of the above authorities, allowing any entity to benefit from the evaluation of suppliers by withdrawing an evaluation form and utilize the software available to prepare the database for the Supplier Valuation Register.

scholarly journals Peculiarities of the relays intended for operating trip coils of the high-voltage circuit breakers

2007 ◽  
Vol 4 (2) ◽  
pp. 223-237 ◽  
Author(s):  
Vladimir Gurevich
Keyword(s):  
High Voltage ◽  
Relay Protection ◽  
International Standards ◽  
Circuit Breakers ◽  
Technical Parameters ◽  
Technical Specifications ◽  
Electromagnetic Relays ◽  
Microprocessor Protection

Parameters of the subminiature electromagnetic relays used as output elements in microprocessor relay protection, do not correspond to technical specifications on these relay protection. The reasons of this discrepancy are analyzed. Contradictions and discrepancies of the international standards in this area are considered. It is shown, that absence of clearness in standards and mistakes in technical specifications of manufacturers of microprocessor protection do not allow estimating correctly technical parameters and lead to decrease in reliability of relay protection.

scholarly journals SELECTING SAFETY PACKAGE COMPONENTS OF ENTERPRISE INFORMATION SYSTEM FOLLOWING REQUIREMENTS OF STANDARD LEGAL DOCUMENTS

2018 ◽  
Vol 18 (3) ◽  
pp. 333-338
Author(s):  
E. A. Vitenburg ◽  
A. A. Levtsova
Keyword(s):  
Information System ◽  
Information Security ◽  
International Standards ◽  
Protection System ◽  
Enterprise Information System ◽  
Enterprise Information ◽  
Research Results ◽  
Legal Documents ◽  
The Russian Federation ◽  
Selection Of

Introduction. Production processes quality depends largely on the management infrastructure, in particular, on the information system (IS) effectiveness. Company management pays increasingly greater attention to the safety protection of this sphere. Financial, material and other resources are regularly channeled to its support. In the presented paper, some issues on the development of a safety enterprise information system are considered.Materials and Methods. Protection of the enterprise IS considers some specific aspects of the object, and immediate threats to IT security. Within the framework of this study, it is accepted that IS are a complex of data resources. A special analysis is resulted in determining categories of threats to the enterprise information security: hacking; leakage; distortion; loss; blocking; abuse. The connection of these threats, IS components and elements of the protection system is identified.  The requirements of normative legal acts of the Russian Federation and international standards regulating this sphere are considered. It is shown how the analysis results enable to validate the selection of the elements of the IS protection system.Research Results. A comparative analysis of the regulatory literature pertinent to this issue highlights the following. Different documents offer a different set of elements (subsystems) of the enterprise IS protection system. To develop an IS protection program, you should be guided by the FSTEC Order No. 239 and 800-82 Revision 2 Guide to ICS Security.Discussion and Conclusions. The presented research results are the basis for the formation of the software package of intellectual support for decision-making under designing an enterprise information security system. In particular, it is possible to develop flexible systems that allow expanding the composition  of the components (subsystems).

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