• Proceedings of the KSR Conference
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• 2007.05a
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• pp.722-729
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• 2007

The methodology for maintenance system development should overall be considered with all of task characteristic, schedule, and the technical condition of investment sources. This research applies Waterfall model to methodology for the development and construction of maintenance system through customizing the CD (Custom Development) procedure of "HSDM (Hyundai System Development Methodology)" based on information engineering. The waterfall model called as classic life cycle paradigm is defined for the sequent development procedure, which make progress a next step after that a previous step is admitted with thorough review. This model which is popular and the oldest paradigm is used for system development by four steps; demands analysis, design, construction, and maintenance. This methodology advances higher abstract step from higher lower step using top-down approach from concept definition to construction, which notices the end of a step whenever a step is over. Therefore, each step is exactly divided, and consequently the output is clearly yielded.

• The KIPS Transactions:PartD
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• v.11D no.5
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• pp.1123-1132
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• 2004

Successful project planning relies on a good estimation of the manpower required to complete a project. The good estimation can be derived from Rutnam's Rayleigh Model or Phillai et al.'s Gamma Model. These models only can be applied for the projects which the need of manpower is increased exponentially and the highest of manpower is required at the end of development phase. However, in a practical project, most manpower is required during development phase and a small amount of manpower is assigned during maintenance phase. In addition, the Waterfall Model and Unified Process only can be adopted for development phase. So the current development environments cannot be adopted into the existing manpower distribution models which the highest manpower is required at the end of development phase. This paper suggests an appropriate model for development phase to solve this problem. First, the appropriate manpower distribution for development phase of the Waterfall model was derived from Putnam's manpower distribution and then manpower distribution of development phase was derived for Unified Process. After comparing the required manpower of two Processes, total manpower distribution is similar each other even though the required manpower and task is different for each point of development phase. From this result, a unified model is derived and it can be applied for both development processes.

• Journal of Internet Computing and Services
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• v.5 no.4
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• pp.95-113
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• 2004

RUP(Rational Unified Process) is a development process which is based on object-oriented, use case centric, architecture centric, and iterative approach. Public projects performed previously adopt waterfall lifecycle model for development of large scale software. However, recently various projects adopt an iterative approach to minimize risks of a project and to enhance quality of software. But few research result on practices of RUP as the subprocess of system development process is available. This paper presents a system development process which uses RUP as the subprocess for a subset of the system. Thus we introduce a tailored RUP for K-CIS(Korean Core Instrumentation System). Moreover, we assess the application result of K-CIS with typical waterfall lifecycle model and RUP. We believe that the results of our work are useful for tailoring a system development process with RUP, reducing risks of development, and enhancing the quality of a final product.