• 제어로봇시스템학회:학술대회논문집
• /
• 1993.10b
• /
• pp.288-292
• /
• 1993

This paper summerizes a prototype central control system of distribution automation system, which is a result of project carried out by KERI and 6 companies. Of the many possible systems, feeder automation oriented system is described. Control hardware system is composed of one super-mini and 2 workstations. Two kinds of commercial softwares, DBMS and graphic tools, are adopted. Three component system of the hardware has its own role, host system for DB managent, F.A. program running, communication scheduling, and etc., two workstations for communication node and graphic interface node. System management program, feeder automation program including load forcasting, communication scheduling and supervisory contorl functions are developed on the basis of above hardware and properly designed protocol, communication system and terminals.

• Asia pacific journal of information systems
• /
• v.9 no.3
• /
• pp.111-126
• /
• 1999

Current audit reports on IS development projects provide useful information to stakeholders but have such limitations as the lack of quantification of audit results and the insufficient recommendations on success factors. The purpose of this study is to solve these limitations, leading audit reports to become of future-oriented contents and form. This research was conducted through the logical inference from the review on the related literature, the analysis of audit reports from 1996 to 1998, and the collection of data from interviews and questionnaires with IS auditors. As a result of the study, eighteen success factors were identified for the development of IS projects, including the adequate composition of the system development team, the degree of project manager's cooperation with the client organization, and the timing of decision making.

• The Journal of Society for e-Business Studies
• /
• v.6 no.2
• /
• pp.143-157
• /
• 2001

There has been a need for predicting development efforts and costs of the system during the early stage of the software process and hundreds of metrics have been proposed for computer software, but not all provide practical support to the software engineer. Some demand measurement that is too complex, others are so esoteric that few real-world professionals have any hope of understanding them, and others violate the basic intuitive notions of what high-quality software really is. It is worthwhile that metrics should be tailored to best accommodate specific products and processes after grasping their good and no good point. This paper describes two size estimation techniques, the Karner technique and the Marchesi technique, and compares and analyzes them with proposed evaluation criteria. Both techniques are to estimate software size analyzed by use case that is mainly described during the object-oriented analysis phase. We also present an empirical comparison of them, both are applied in the Internet Medicine Prescription System. We also propose some guidance for experiments based on our analysis. We believe that it should be facilitating project management more effective by adjusting software metrics properly.

• Journal of Korean Association for Spatial Structures
• /
• v.1 no.1 s.1
• /
• pp.135-142
• /
• 2001

This paper proposes structural analysis on the World Wide Web to form a part of the architectural design project. It purposes modeling space frames and a structural analysis program on the internet only by inputting basic data for forming a shape in the whole phase of space frame analysis. The analysis data is conducted by Oracle DBMS(DataBase Management System), GUI(Graphic User Internet) by Java Applet and connection with server and database by Java Servlet respectively. The result from modeling and analysis is provided as graphic and text file forms by web browsers. Programs can be executed irrespective of user's OS by using internet and highly-secured system is constructed taking advantage of Java. Of great efficiency is maintaining and recycling data as the whole is dealt by database from the beginning to the end of program.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.26 no.6A
• /
• pp.980-988
• /
• 2001

현재 초고속 인터넷 서비스를 위한 ADSL과 같은 가입자 망 설비가 폭발적으로 증가하고 있으며 이를 뒷받침하는 백본 망으로는 ATM망이 있다. 백본-가입자 망에 대한 일관적 망 관리 시스템의 도입은 가입자에게 제공되는 모든 서비스에 대한 신뢰성, 안정성을 높일 수 있다. 본 논문에서는 먼저 분산 처리 망 관리 시스템을 개발하기 위한 객체 지향 개발 방법론을 설명하고, 그에 따라 NMS가 관리해야 할 망 자원들을 모델링 한 후, 실제 시스템의 구현까지의 실례를 설명한다. 구현 결과로 백본 ATM망의 각 망 자원뿐 아니라 가입자 ADSL망 설비까지 확장 관리할 수 있는 CORBA 기반 ATM 백본-ADSL 가입자 망 관리 시스템을 구축하였다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.593-597
• /
• 2003

As construction projects are complicated and large in scale, a collaboration between project participants is getting more emphasized over the last few years. The collaboration tools for participants are various. but traditionally drawings and specifications have played an important role. Especially, though storage form in drawings vary in entire construction lifecycle, drawings are still important as the core factor in latest information technology streams in regard to usefulness and reusability of information. As an attempt to standardize drawings in the public construction based on CALS/EC, this study analyzes user's requirements for drawings qualitatively, and looks into drawings standards in Korea, America and Japan, and each kind of ISO standard for drawings. And this study predicts future-oriented user's requirement for drawings based on Construction CALS/EC, and presents future-oriented direction of development applicable in domestic drawing standard in construction.

• Korean Journal of Construction Engineering and Management
• /
• v.11 no.6
• /
• pp.3-13
• /
• 2010

The purpose of this research is to develop a conceptual model that establishes a new approach for functional area cost estimating in the schematic design phase. A cost estimating model should consider not only the estimate accuracy, but also the flexibility to the design alternatives and user-oriented serviceability. Therefore, this research uses the method that classifies various facilities of a building according to its functions by analyzing historical data. After setting the functional area as cost parameter, a formula which can estimate functional area cost is derived from statistical analysis. Finally, to validate the proposed conceptual model, it is applied to historical data of a military barrack project. It enables customized space planning reflecting client's needs and compares the cost of various design alternatives as well as improves estimate accuracy.

• Journal of Environmental Impact Assessment
• /
• v.8 no.4
• /
• pp.47-57
• /
• 1999

This study is aimed at the development of comprehensive environmental management system, which can be operated on the basis of world wide web, as a topic of G7 project. Even though there should be lots of works remaining to achieve this goal, preliminary products can be summarized as follows : 1) integrated environmental information management system, 2) web based control engine, 3) surface water environment management system, 4) subsurface water environment management system, 5) sewer and waterworks management system. The core methodology of the engine is the generalized multidimensional finite element matrices to depict the terms in the analysis of various partial differential equations. Spatial information management system (ArcView) and Visual Basic were extensively employed to construct GUI oriented web based engine. The developed systems were composed of very intense computer codes due to the necessity of combinatory management of environmental problems. The web based engine could be served as a decision tool for the integrated management of environmental projects in Korea.

• Journal of KIBIM
• /
• v.2 no.2
• /
• pp.1-9
• /
• 2012

In Korea, recently, efforts have been made to introduce BIM(Building Information Modeling) to housing complex projects. However, there have been several problems including excessive competition for building design and outcome-oriented evaluation due to a lack of clear evaluation criteria and poorly organized management process. Under this circumstance, the study surveyed opinions of project managers and conducted a pilot test to improve evaluation criteria of BIM-based design for housing complexes. The objective is to assess the level of BIM technology and its applicability, and to propose a list of reasonable evaluation criteria for better project management. First, the study examined the current condition of evaluation on the BIM-based housing complexes, and identified 15 preliminary items that might be suitable for application of BIM. Second, the study conducted a pilot test for the 15 items to determine their suitability for the level of BIM technology, clarity of the calculation process, and the extent of fulfilling information quality, and short-listed eight items for application of BIM. In particular, in the design concept stage, mostly 3D visual images and area-related items are suitable for BIM-based evaluation. Accordingly, formerly used items such as project cost, energy and environmental analysis, building structure, and facilities were deemed more relevant to the subsequent stages of basic design and its implementation.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• autumn
• /
• pp.469-472
• /
• 2003

A life cycle cost analysis model for public water supply systems should be different from the ones for other civil and architectural facilities as the operation and the maintenance cost of the water supply systems mainly come from the various mechanical systems and the pipeline systems of the collecting/treating/distributing facilities. This paper presents a cost classification scheme and a life cycle cost analysis model for public water supply systems. A value analysis (VA) procedure that is well suited for practical purposes is also presented. The presented life cycle model and the value analysis procedure were applied to a real world project, and this case study is discussed in the paper. The model and the procedure presented in this study can greatly contribute to the value-oriented design alternative selection, the estimation of the maintenance cost, and the allocation of budget for water supply system construction projects.