• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.45-46
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• 2015

The guideline on software quality assurance and human-centered design for e-Navigation was approved as IMO circular June 2015. e-Navigation software systems are characterized by a high proportion of data quality and quality in use. The purpose of this paper is to improve the quality in use of the maritime software quality assurance for the safety route guiding service. In this study, we added the stage which the stockholders such as a project manager, software developers, and end-users use the prototype that was developed based on the scenarios before the stage of design and development. Through this, we could review the requirement about the quality in use for a limited time at the beginning of the project. also we could raise understanding the concept of this project and goal system.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.10a
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• pp.9-10
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• 2015

e-navigation is a Strategy developed by the IMO. It aims to implement the strategy in 2018. To this end, e-navigation Software Quality Assurance and Human-Centred Design Guidelines has been developing for the implementation and development of e-Navigation. The IMO MSC approved this guideline as a MSC circular in June 2015. In this paper, international standards of software quality assurance and human-centred design has been surveyed and analyzed in terms of usability testing for the practical application of this guideline. The result is planning to be reflected in the practical application guidance for the development of e-navigation equipment hardware-software combination.

• Journal of Advanced Marine Engineering and Technology
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• v.38 no.2
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• pp.123-132
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• 2014

The maritime sector is advancing with dedicated endeavor to reduce greenhouse gas in addressing issues with regards to global warming. Since 01 January 2013, the International Maritime Organization (IMO) regulation mandatory requirement for Energy Efficiency Design Index (EEDI) has been in place and should be satisfied by newly-built ships of more than 400 gross tonnage and the Ship Energy Efficiency Management Plan (SEEMP) for all ships type. Therefore, compliance to this necessitates planning during the design stage whereas verification can be carried-out through an acceptable method during sea trial. The MEPC-approved 2013 guidance, ISO 15016 and ISO 19019 on EEDI serves the purpose for calculation and verification of attained EEDI value. Individual ships EEDI value should be lower than the required value set by these regulations. The key factors for EEDI verification are power and speed assessment and their synchronization. The shaft power can be measured by telemeter system using strain gage during sea trial. However, calibration of shaft power onboard condition is complicated. Hence, it relies only on proficient technology that operates within the permitted ISO allowance. On the other hand, the ship speed can be measured and calibrated by differential ground positioning system (DGPS). An actual test on a newly-built vessel was carried out to assess the correlation of power and speed. The Energy-efficiency Design Index or Operational Indicator Monitoring System (EDiMS) software developed by the Dynamics Laboratory-Mokpo Maritime University (DL-MMU) and Green Marine Equipment RIS Center (GMERC) of Mokpo Maritime University was utilized for this investigation. In addition, the software can continuously monitor air emission and is a useful tool for inventory and ship energy management plan. This paper introduces the synchronization and identification method between shaft power and ship speed for EEDI verification in accordance with the ISO guidance.

• Journal of Navigation and Port Research
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• v.43 no.6
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• pp.353-360
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• 2019

Technology-driven development of a new system makes it difficult for users and stakeholders to identify or intervene in the development process, resulting in systems with unnecessary functions and poor quality services. Applying the software architecture design process to the initial design of the navigation system platform of autonomous ships enables the development of a system that reflects the required functions and service quality of the stakeholders. The design, which includes all of the subsystems that make up an autonomous ship platform, is close to an enterprise architecture. Thus, we strived to design a navigation system platform suitable for the design range of the software architecture. This study analyzed the definition of functional requirements, and quality attributes by applying the software architecture design procedure. This study was conducted to identify the characteristics of the navigation system and platform needs, and the stakeholders were identified. To derive the functional requirements and constraints of the platform, a quality attributes workshop was held engaging stakeholders, and the results of the analysis of functional requirements and quality attributes were listed. Based on the results of this study, the architect can establish the evidence and technical solutions that are integral for the architecture development, and will facilitate the creation of quality attribute scenarios.

• Journal of Digital Contents Society
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• v.16 no.6
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• pp.935-941
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• 2015

The maritime industry has been developing e-Navigation strategy for safety navigation. The implementation of e-Navigation strategy will cause many needs for developing new software increasingly. For this reason, IMO referred to importance of software quality and endorsed the e-Navigation SQA/HCD guideline as an official IMO document. Accordingly, it is necessary to develop a practical guidance to apply the guideline. This paper describes the elicitation results about the detailed actions of requirement analysis stage based on quality standards. Also, the improvement measure is proposed in this paper.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1534-1537
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• 2011

소프트웨어 개발의 재사용성과 신뢰성을 높이기 위해서 DLL 기반의 소프트웨어로 구성된 M&S 프레임워크를 개발하였다. M&S 프레임워크를 적용한 소프트웨어는 짧은 기간에 개발하여 비용을 절감할 수 있는 장점은 있으나, 프레임워크에서 사용된 다수 DLL의 버전관리의 어려움이 있다. 본 논문에서는 DLL 기반 소프트웨어 통합을 위한 버전관리 방법을 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.11a
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• pp.1369-1371
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• 2011

효과적이고 체계적인 소프트웨어의 재사용을 위해서는 해당 도메인에 대한 공통된 자산을 먼저 개발해야 한다. 재사용을 위한 컴포넌트 집합은 복잡한 소프트웨어를 컴포넌트 단위의 구조로 분해하고 이를 다시 조립할 수 있도록 하여 생산성을 향상시키지만 광범위한 분석으로 인해 컴포넌트를 개발하는데 필요한 비용과 기간을 증가시키기도 한다. 이러한 문제점을 극복하기 위해 소프트웨어 제품 라인 공학을 적용하여 해당 도메인의 수요나 업무 수행을 만족하는 일련의 공통된 기능들을 이용하여 재사용할 단위인 핵심 자산을 구축하고 요구사항에 따라 목표 시스템을 단기간에 저비용으로 개발할 수 있다. 본 논문에서는 소프트웨어 제품 라인 공학을 통해 정의된 M&S프레임워크의 핵심 자산을 제시하고 이를 재사용해 기록장치 소프트웨어를 개발한 사례에 대하여 설명한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2006.10a
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• pp.123-128
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• 2006

This paper presents the design of a surveillance night vision system for marine ships. Both a hardware system and software modules for tracking control are developed. In order to control each control axis with compensation for ship motion, the two-degree of freedom(TDF) PID controller is designed and its parameters are tuned using a real-coded genetic algorithm(RCGA). Simulation demonstrates the effectiveness of the proposed system.

• Journal of Navigation and Port Research
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• v.33 no.6
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• pp.395-400
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• 2009

In order to prepare for the DGNSS recapitalization and implementation of the functions for software based reference station and integrity monitor (RSIM) system, this paper proposes a design of integrity monitor functions of maritime differential GPS RSIM. The most critical functions of the integrity monitor (IM) are to generate and send flags to the reference station (RS) along with system feedback. Firstly, it presents the architecture of software based RSIM, and analyzes the performance standard of integrity monitor for maritime DGPS reference station This paper then designs the functions of integrity monitor for DGPS reference station based on the performance standard. Finally, this paper presents the results of performance analysis for the functionality of integrity monitor using the GNSS simulator. it discusses the study method and its application for the system implementation.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.123-124
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• 2012

Over the past decades, information and communication service providing safe and efficient navigation have been tried in maritime area. However, there were provided different ways such as different protocol or different policy. It made hard to serve efficiently. The introduction of MSI as a part of e-navigation development can be a kind of concepts to solve this problem. This paper tries to suggest a conceptual design of onboard application middleware to be able to communicate the shore-side maritime safety information system, take into account the reuse of open-source software.