The purpose of this study was to propose an operational concept for a ship in a fleet equipped with an interceptor missile system, a naval surface to air defense system, and to develop a simulation program that reflects it. The results of the defense activities of other ships in the fleet can be reflected by receiving information about the status of the enemy missiles. The allocation of defensive assets is based on the survival probability of the ship, not on the destruction of enemy attacks, which can be obtained as the product of the expected survival probability for each enemy missile. In addition, the concept of predicted survivability was introduced to assess the loss of future defense opportunities that would result from assigning a new command. A simulation program was also developed as a tool for realizing the proposed concept of operations, which generated cases.

The recent development of modern weapon system by SOS (System of System) has required users to have more exact decision making. It is possible to achieve the control of complex weapon system more efficiently and effectively by increasing usability. Accordingly, many studies on graphical display have been conducted for several years in the field of HCI (Human Computer Interaction) and GUI (Graphic User Interface), starting from its design stage. Therefore, this paper focuses on evaluating the system GUI usability and analyzing several important points based on performance model, which is a tool for the evaluation and the improvement of service quality. Performance Model, the main focus of this study, reflects user expectations (which is defined as user importance in this paper). The study consists of four steps. First, 34 checklists are drawn from the existing studies related to GUI usability evaluation by using a heuristic method, and then the checklists are matched with 11 weapon system design factors. Next, the study evaluates the importance of GUI element and the usability of weapon system “A” with the checklists twice respectively. Third, the performance of user importance (Pi) and the performance of usability (Pu) are calculated by modifying a numerical formula for normalization in this step. Finally, the study compares the approach it takes and the existing usability evaluation method, demonstrating that there is a significant difference between the two methods as a result. In addition, 4 improvement factors are suggested for weapon system “A” as “Shortcut” and “Description of Abbreviation,” and so on. Although it is necessary to conduct more studies for higher reliability and validity of the results, this study is meaningful considering it takes a new point of view.

Due to the evolution of war fields to the net-centric one, weapon systems have become very complex in terms of both mission capability and implementation scales. In particular, the net-centric war field is characterized by a set of interconnected and independently operable weapon systems. As such, the individual weapon systems are required to meet the interoperability and thus, assuring it has been becoming more crucial even in the early stage of development. Furthermore, the ever-growing complexity of the weapon systems has attracted a great deal of attention on the safety issues in the operation and development of weapon systems. The objective of the study is on how to assure the interoperability for safety-critical weapon systems while maintaining system complexity. To do so, the approach taken in the paper is to consider the interoperability from the early stage of the development. Specifically, the required functions to satisfy the interoperability are developed first. The functions are then analyzed in order to link the safety requirements to the reliability evaluation, which results in the study of quantifying the effects of the safety requirements on the system as a whole. As a result, we have developed a methodology and procedure on how to assure interoperability while applying the safety requirements in the weapon systems development.

기초자료의 획득 체계 및 가공 체계의 부재와 복잡한 사용자 입력 체계로 인해서 유출유 확산 예측 모델의 활용에 제약이 따른다. 이러한 상황에서 유류오염사고에 신속하게 대응하기 위한 과학적 방제 전략 수립은 어렵다. 본 연구에서는 현재 실정을 고려하여 유출유 확산 예측 모델 구동을 위한 최선의 상시 활용 체계를 수립하였다. 모든 기초자료를 직접 구축하고 관리하는 것이 불가능하기 때문에 외부 기관의 실시간 동적 자료를 연계하고 최소한의 데이터베이스만을 직접 구축하여 실시간 유출유 확산 예측의 상시 활용이 가능함을 확인하였다. 또한 사용자와 모델간 인터페이스부분에서 발생하는 오류를 최소화하는 사용자 입력 인터페이스와 모델 연산 결과를 시공간 측면에서 다차원적으로 분석할 수 있는 결과 표출 인터페이스를 제안하였다. 본 연구 결과로 구축된 유출유 확산 예측 모델의 상시 운용 체계는 외부 자료에 의존하기 때문에 모델 결과의 불확실성이 존재하지만, 유류오염사고 발생시 신속하게 모델을 구동하여 유출유 확산 예측을 수행할 수 있다는 측면에서 실제 방제 현장에서 의미있게 활용될 수 있다.

유류오염 사고에 효율적으로 대응하기 위해서는 유출유의 확산을 예측하여 방제 전략을 수립해야한다. 신속성과 신뢰성을 요구하는 상황에서 즉시 운용 가능한 시스템이 부재한 경우에 모델을 이용한 유출유의 확산 예측은 매우 어렵다. 모델 연산에 필수적인 실시간 입력자료 의 확보 및 모델에 가용한 형태로의 변환에 많은 수고가 필요하여 모델 구동을 위한 준비 작업에 많은 시간과 노력을 할애해야한다. 또한 모델 에 익숙한 전문가가 아닌 경우에는 준비된 자료를 입력하는 과정에서 오류정보가 입력되어 잘못된 모델 연산 결과가 방제 현장에 적용되어 방 제전략 수립에 혼선을 초래하기도 한다. 본 연구에서는 실시간 자료 확보와 모델 연계에서의 제약을 극복하고 사용자의 정확한 자료 입력이 가 능하도록 유출유 확산 예측 모델의 상시 활용을 위한 상시 운용 체계를 개발하였다. 일부 실시간 자료의 경우 외부 자료에 의존적이지만, 자료 연계를 통해서 모델 활용에 적절한 실시간 자료 확보가 가능하다. 또한 사용자에 의한 오류를 최소화할 수 있는 인터페이스 개발을 통해서 유출 유 확산 예측 모델의 입력자료와 결과자료의 신뢰성을 확보할 수 있다.

The Hwasong City Wall was built for three years(1794-1796), but the real construction term was taken only 28 months. The wall and the buildings on the wall were built simultaneously, and the esttimated construction cost was highly restricted. These conditions were main factors for considering the high efficiency of construction productivity. This study examines these factors that are reflected in the operating system of the architectural standard scale of length, the architectural composition system in the Hwasong City Wall to reduce the construction cost. Through the study, following factors are found. 1.The rule of multiple proportion is found in the relationship between the partition distance, that is, span and the height of the girder which is related to the productivity of ready-made building members. 2.The ruling grade system of scale in the component members is found in the chang-bang(창방, penetration members)

The purpose of this paper is to suggest the methodology for the establishment of operational concept for speed-up of defense robot and improvement direction of the defense acquisition system for the defense robot. In order to achieve this goal, the current defense acquisition system was analyzed into long-term planning, mid-term programming, and project execution stages. And I suggest the methodology for the establishment of operational concept for speed-up of defense robot and direction of development of the defense robot acquisition system considering the characteristics of the robot in terms of core technologies of robot, robot ecosystem and effectiveness-based-robot-design, respectively. Based on the methodology for establishment of the operational concept of defense robot and development direction of the defense acquisition system presented in this study, it will be possible to design efficiently the defense robot in the future.