• Journal of Korean Society of Industrial and Systems Engineering
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• v.18 no.34
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• pp.115-121
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• 1995

The objective of this study is to develope an effectiveness measurement technique for U-shaped JIT production line by computer simulation. A small and medium sized automobile brake master cylinder manufacturing plant is studied for productivity improvement The production line is analysed and improved by applying Low Cost Automation, special jigs and fixtures, and facilities layout changes. An experimental simulation model is built using SIMAN(SIMulation ANalysis) simulation software for the production system analysis.

• IE interfaces
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• v.8 no.3
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• pp.11-23
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• 1995

During the past few years, the productivity has been considered as one of the most important aims in developing softwares. Many practitioners and theorists are trying reuse ready made codes to increase the productivity of software development and the quality of their products. This paper introduces our experiences in developing a highly reusable class library and its reusing environment for building a database interface application. And the concepts, Structured Multi-Library and Dual Views of Class Inheritance, are also suggested, which consist our main conceptual framework in our work. Details in implementation are discussed in brief at the end.

• ETRI Journal
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• v.25 no.2
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• pp.121-132
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• 2003

To enhance the productivity of software development and accelerate time to market, software developers have recently paid more attention to a component-based development (CBD) approach due to the benefits of component reuse. Among CBD processes, the identification of reusable components is a key but difficult process. Currently, component identification depends mainly on the intuition and experience of domain experts. In addition, there are few systematic methods or tools for component identification that enable domain experts to identify reusable components. This paper presents a systematic method and its tool called a component identifier that identifies software components by using object-oriented domain information, namely, use case models, domain object models, and sequence diagrams. To illustrate our method, we use the component identifier to identify candidates of reusable components from the object-oriented domain models of a banking system. The component identifier enables domain experts to easily identify reusable components by assisting and automating identification processes in an earlier development phase.

• Journal of the Korea Society of Computer and Information
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• v.9 no.3
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• pp.103-107
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• 2004

Software Reuse have the advantages of increasing productivity and software reliability reducing the period for software development and cost, sharing the information which is related to software. Vertical Reuse is the method which reuse is restricted to a specific area and can increase the reliability of software reuse due to high understanding of related area. Bottom-up approach of Vertical Reuse classifies the related information and s the results. It allows the reuse of not only pure source code but also informal documents.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2000.10a
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• pp.243-246
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• 2000

Software Engineering covers techniques, tools, and methodologies needed to develop, acquire, and manage software in high quality, using appropriate resources. Therefore it can be said that the administration target of software engineering activities is the pursuit of high productivity for production of software in good quality. To do this, they should establish the engineering principle based on engineering theory and concept, and form the effective environment of engineering technology through improving development methods/methodology and tools of software engineering. In addition several guidances related to information system planning, acquisition, development, management, maintenance, and evaluation, etc. must be invented on the basis of software engineering to encourage efficiency of public information business yearly increasing fastand to make sure compatibility and interoperability.

• Asia pacific journal of information systems
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• v.6 no.1
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• pp.241-267
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• 1996

The problems like exceeding estimated cost, late due-date, expensive maintenance, insuffiency of experts and low productivity are becoming emphasized related with the software development. In order to overcome these problems and to develop the highly qualified software within the limited resources, a project management tool is used. The purpose of this study is to develop a conceptual model of the project management system which can plan, analyze and control the software development projects effectively. The model is constructed with plan and track management system, cost management system and operation management system for the efficient project management. It is named by LSD-PMS : Large-scale Software Development Project Management System. We reviewed 5 cases of project management. LSD-PMS is evaluated and reviewed by the project managers in the field. It is proved that LSD-PMS is a tool which can help project managers develop software successfully given budget and time schedule. In the future, this system should be further developed as an integrated model with system implementation tools such as CASE products.

• Journal of Korea Society of Industrial Information Systems
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• v.6 no.4
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• pp.39-47
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• 2001

Software architecture serves as a framework for understanding system component and their interrelationships. Software architectures can be reusable assets to achieve low costs, high productivity, and consistent quality. We have developed a software architecture design environment, called Happy Work. In this paper, we would like to present the structure and functions of Happy Work. Happy Work has two main functions. First, it provides a graphic editor for modeling of software architecture diagram. Second, it provides an ADL, called HWL(HappyWork language). HWL is a language that describes software architecture.

• The Transactions of the Korea Information Processing Society
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• v.6 no.3
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• pp.580-588
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• 1999

The reuse of software components from existing software system enhances productivity and reliability, decreases the cost of production in software development. The extraction of software components with high reusability from existing software system is very important in software reuse. The reuse of a class is classified into white-box reuse to reuse with modification and black-box reuse to reuse without modification. A class has the property of procedural language and object-oriented language. Therefore, it must measure reusability in consideration of two properties. In black-box reuse, independence of class is important quality. It can quantify through information hiding, coupling between objects, cohesion, etc. In white-box reuse, modification is the best important quality. It can quality through class complexity, coupling, cohesion, documentation, etc. We propose a new model for measurement of class reusability and the measure criteria in object-oriented program. A class that is measured by proposed model can judge whether the reuse with modification has the advantage or the reuse without modification has the advantage.

• International conference on construction engineering and project management
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• 2007.03a
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• pp.269-278
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• 2007

Nighttime construction is being adopted by many state DOT's as a way to mitigate the impact of construction operations on the traveling public. Although a number of states have developed standard specifications for nighttime lighting, these standards are usually in the form of generic requirement statements that only specify minimum illuminance levels. The lighting standards do not include specific ways to achieve this illuminance level such as lighting arrangements and configurations for various work zone plans and construction operations. This leaves confusion between the traffic engineers and the contractors and does not guarantee consistency in those plans, thus affecting productivity and safety (lighting conditions account for 18% to 28% of work zone accidents). The main objective of this study is to utilize three dimensional animation and lighting analysis software to study and model lighting conditions of a construction site. This is expected to increase the safety and productivity of construction operations by achieving consistency in work zone lighting schemes. A computerized model was developed, called Nitelite. Various lighting schemes can be studied using the software to provide for typical applications including lighting fixture's locations, luminance, mounting height, tilt angle, and fixture type. The results from the developed software tool were validated through comparisons with previous research conducted using field measurements.

• Journal of the Korea Society of Computer and Information
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• v.6 no.4
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• pp.12-20
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• 2001

The problem of software bottle-neck may be arised from unbalance of demands and supply of software. This is caused from the fact that the capability of programmer could not be improved in software development. Therefor, the new method of software development should aim at improving the productivity of software. This paper presents the expressions to be the standardized software Program modules by means of the software chip. The expressions are consist of name, input, output, and iteration of each software chip. And they simple express a combination and separation in sequence, parallel, iteration, composition, mixing, and variety form. Therefore they can easily software reuse as a result of analyzing the flow of data clearly.