In rapidly changing circumstances, the construction industry shows tendency to be more complicated and expanded and these changes are becoming the main factors aggravating uncertainty in straightening construction costs in the industry. The most important process in preliminary phase is calculation of appropriate construction sum and accurate estimation is required to accomplish it. Currently, local constructors draw up estimates by using the ‘per square meter’ calculation method or by applying of previous cases as they are. These methods become suppressive cause for making clear decisions by occurring errors in quantity survey in a way of data emission, replication and so on. Therefore, in this study, approximate estimation model of finishing construction shall be proposed to assist people to make prompt decisions in initial design stage. To develop this research, the existing quoting practices shall be presented and categorized by usage of space. To achieve this, information on performance, furnishings and unit price according to space definition has been collected in advance, which again enable ontology knowledge classification scheming database of space unit to be utilized and presented as knowledge information.

Cost estimating is essential in decision-making for conducting project management on early design stage. The cost estimating method for each stage varies according to level of design detail. Therefore, in the cost estimating method for each stage, it must distinguish quantity items that can be directly measured from quantity items that should be predicted. The parametric estimating method is able to support cost planning for various design attributes as it is possible to set impact factors related to design features as parameters. This study suggests a prediction method for quantity information that is required to estimate the final cost during the early design stage. The case study suggests an predicting method for the steel (rebar) ratio of office buildings. The suggested parametric cost estimating model enables users to predict the steel (rebar) quantity for various design alternatives according to design features. During quantity predictions, IG(Information gain) measurements for the design attributes were analyzed, by setting the ratio of steel-rebar quantity(Ratio: ton/Concrete_㎥) as the dependent variable.

Recent projects for transferring Public Office buildings and estimation of appropriate construction expense are highly important for both government and construction firms. Moreover, estimation and management of construction expense can be regarded as extremely important duties for effective execution of a national budget as nation’s finance is invested in the Public office building projects progressed by the government. To progress one project for Public office building, not only the organization demanding the project but also an investment screening organization, a budget-managing organization, a feasibility assessment institution and many other related organizations participate in the project and a lot of decisions arisen from the project operation are made on the basis of construction expenses calculated for relevant stages. And estimation of rational construction expense is also critical for designers in order to create design within the fixed budget simultaneously with securing the quality and efficiency of structures to the maximum. Therefore this research suggested an improvement process to analyze problems in current construction expense management process and to administer the construction expenses effectively.

With the trends of massiveness and complexity of construction, the main agents of construction have considered the various types of risk management strategies to minimize the loss caused by the risk factors from the nature of construction project, regional characteristics, and scale of construction. The risk management has been conducted, because the risk factors have exacerbated the condition of construction in terms of the level of productivity, quality of construction, atmosphere, and budget. Based on thε interests regarding risk factor management, the current study suggests the work breakdown structure-based process. Additionally, based on the work breakdown structure, the risk factors on constructions are identified and stratified depending on the level of salience of each risk factor. The purpose of result is to lead Korean Land Corporation understand and control the risk factors properly for the advanced construction process of Korean Land Corporation. Ultimately the current study contribute to advance of efficient risk management strategies by using ANP method, which identify and control the primary risk factos depending on the impact of the interaction and subordinate relationship between risk factors.

With the place which concentrates vertical traffic facility and equipment which are a core facility etc. there is in a building and with structure major role. The core is cold under effectiveness of the area and elevator system with security of the business space which is the relationship which is close in high office construction MIDAS GEN and used the identical construction infrastructure where the core location is different in order to influence is direct in dwelling environment animal power, shear force and moment it used structural analysis. It used a load standard and it compared after grasping a safety and a use characteristic, the core reaches in the building problem point the top class bringing up for discussion Drift Value and escape. The result which it analyzes with base there is recently to high office plan and it decides a core location to be, it presented in about plan of optimum. The central core in large scale and rough copy layer is suitable in the office, the case frame peripherally with the historical wall there is an effect which is stabilized with structure, the eccentric core in the small-scale office suitability but is disadvantageous evacuation facility and equipment establishment etc. The core in standard will grasp a stability in about durability and load of absence, it means it will be desirable to reflect to a high office building plan with the base which will reach.

Recently expanding market for largely scale construction projects, cost management of construction project have been increasingly recognized as an important factor responsible for the project success. But public organizations have been continuously operating the same methods as before in cost estimating, so it raise an issue of reliability for estimated cost. Therefore, this study present a highly reliable model that makes preliminary estimates based quantity data in early design stage. it enables engineers to efficiently manage total cost of project as well as partial cost estimating. This study develop a model of database that is created with historical data conducted by government offices. The model proposed can estirnate a cost for RC Structure in schematic design stage, and it is applied to CBR+GA logics to explore best similar cases. In case of estimating methods used to previous research, it is based on actual cost data. Due to the cost estimating compensated by inflation rate vary in market economic conditions, it will follow as an inevitable consequence of reliability problem. It needs to find better way to ensure accuracy through quantity database. Also, This study has been conducted in attempts to verify the reliability of preliminary estirnation. It is checked for the feasibility of presented model with P-National Tax Service Project aside from the database.

For new construction, recently, it has expended from physical performance standard to completed apartment' blemish warranty and countermeasure strategy contents. And considering element technology is increasing remodeling’ easiness for deciding operation right or wrong the aged apartment’ re-construction or remodeling. In addition, international standardization of building performance makes rapid progress the point of ISO. In Japan, study of housing commission will be done on a national level for the long commission metropolitan gathering house construction and reproduction technical development, and, already, involving study of approval system of building element made progress. It set the goal performance log index of remodeling’ easiness, it set up component element between a part and public standard type in remodeling. In plan and design phase, it is a precondition that make the performance on the basis of user demand in the whole of Use, maintenance, repair, waste and reuse. Therefore, in the building technology case that development of element technology and practical use are fast in progress, a user is required to evaluate/choice according to performance. And a developer is required to the technical development that aim performance is cleared. The study selected a detailed item about performance item of re-modeling element technique through the requirement which the nations (such as America, England, Japan, etc) and the agencies of foreign countries present and item selection standard, from the point of view where the interest not only the individual but also govemmental politic viewpoint is coming to be higher re-modelling than new construction.

A prediction of construction cost in preparation for construction document is calculated in compliance with the unit cost in Public construction of korea. This eventually means that the reasonable construction cost of a building can't be determined before construction document phase cost of construction is settled and that the cost of construction is calculated inefficiently because of connection failing between cost management of detailed estimation and information. To improve those problems, therefore, Cost estimating model of structural building elements with approximate quantity survey method is suggested in this research. The model predict the amount of materials and the cost of construction on the basis of historical similar cases. In the direction of data analysis of this research, ratio statistics value is put to practical use to fit into the peculiarities of approximate estimate of each work trade on the basis of actual data amount of materials of historical cases. In addition, the construction phase is connected through the result of a approximate estimate sorted by elements, details work trade.

Remodeling is an architectural activity that transforms the existing state of specific building which has been aged and clichedinto new state overcoming those aged and cliched state. Remodeling can be a means to increase building’ s physical lifecycle and also a countermeasure to cope with the changes in use that are from social demand, use and technical development. The performance evaluation on the remodeling tenement shall be done by understanding the performance and state of the building before and after remodeling and then it shall represent the improvement in performanc objectively by comparing the differences before and after remodeling. In this aspect, we performed basic research to conduct performance evaluation on the remodeling tenement by comparing and analyzing the performance evaluation and performance certificate systems of Korea and Japan in order to suggest objective evaluation system on the change of tenement building before and after remodeling.

The existing apartment supplied in large quantities in the 1970-80s has a problem of superannuation today. It is at a wornout management means. I can consider Build& and remodeling. However, in the case of remodeling, they are being social and an economical and environmental advantage. It can be said that it is better than Build&. Research of a book is research on a Remodeling ease evaluation system. Remodeling was realized by the technique and construction method which re-design based on the existing apartment，take in the component engineering, and improve the function and performance of a building. if it sees in a certain viewpoint, the development and spread of remodeling technology need to be managed like logical approach of the existing building where the remodeling fishing port planning division also gets, and is applied. The ease of remodeling is estimated by two sides. Remodeling Feasibility is evaluated by two aspects. The first is Macro Level Approach of Remodeling Feasibility Evaluation on a Apartment Complex, and The second is Micro Level Approach of Remodeling Feasibility on each housing part is evaluated about removal and dismandement.

The renovation project of an apartment building can be classified into four processes: ordering the project stage, planning stage, examination and judgment stage, design stage and construction stage. However, in the domestic renovation business, the project performance process has yet to be madε systematic by stage. Of the stages involved in renovation, the design stage is the one that involves very complex roles and business processes of those involved in the project, including the project manager, architect，resident and engineer. In particular, in the design stage, the insufficiency in the ability to utilize the input information by project participants and improper decision making cause various problems in the subsequent construction and ultimately make it difficult to accomplish a renovation project that fully satisfies the residents. Therefore, the design of renovation is a very important stage to ensure a comprehensive understanding of the project performance process as well as the recognition of the design management technology. For this purpose, we aim to analyze the information utilization process with focus on the input information at each stage of the design process. The information utilization process of this study is analyzed through the processes of input information, technical tools and output to establish a decision-making method for each design stage. The aim was to implement the project performance process for the general design management.

The renovation project of an apartment building can be classified into four processes: ordering the project stage, planning stage, examination and judgment stage, design stage and construction stage. However, in the domestic renovation business, the project performance process has yet to be made systematic by stage. Of the stages involved in renovation, the design stage is the one that involves very complex roles and business processes of those involved in the project, including the project manager, architect，resident and engineer. In particular, in the design stage, the insufficiency in the ability to utilize the input information by project participants and improper decision making cause various problems in thε subsequent construction and ultimately make it difficult to accomplish a renovation project that fully satisfies the residents. Therefore, the design of renovation is a very important stage to ensure a comprehensive understanding of the project performance process as well as the recognition of the design management technology. For this purpose, we aim to provide design work process in integrated respects and the role and responsibilities of every participant in the project, subject to the renovation design stage.

It is high that occupancy rate of apartment house in Korea, spite of short history of the using multiple dwelling house. So that, trouble and dispute occurs often on right or responsibility, liability and obligation about ownership, Utilization, maintenance. Especially in renovation project, the project progress held up in perception gap or conflict of interest with residents. These dispute in daily life and delay of project occurs ambiguous borderline or distinction of Common Used(Sharing) Parts) and Exclusive Possessed (Private) Parts. The law now in force is considered in this paper about theses item. Summarizing the conclusion is as below. 1) In the law now in force the literal meaning of a word, Exclusive Possessed (Private) Parts is expressed with concept of Ownership, But Common Used (Sharing) Parts is described with Utilization concept. But in calculation of floor area, complementary set of Private Parts is Sharing Parts. This is contradiction in logic and linguistic. 2) Although above, calculation base of Private Parts is inner line of exterior wall. This is unjustly defined. 3) Especially about balcony (in correct architectural vocabulary is veranda) subordinate law contradictits superordinate law. And in structural mechanics also, minute prescription is necessary about Private Parts and Sharing Parts.

The objective of this research is to present client's requirements definition model that translates requirement information provided by client into design information to fully grasp client's requirements in pre-design phase and to prepare system that reflects it in the design. Suggesting classification system for requirement information grasped in the pre-design phase and dividing process defined by requirement into requirements elicitation, requirements analysis and requirements translation. Moreover, prototype system was embodied as a method to efficiently apply the suggested model.

The curtain wall design process of Korea can be mainly divided into Basic DWG phase performed in architectural design phase and Shop DWG phase performed in the curtain wall design phase. The designing in such process (the process of going over to Shop from Basic) is being performed mainly by the outcome. So it is difficult to communicate between subjects because the decision making or flow of information gets accomplished as one-way. Especially, because the curtain wall designing accomplished in the architectural design process gets performed without reflecting the engineering technology, it causes many problems in the design phasesuch as change of design or delay of decision making. In order to make an improvement on such problem, it is estimated that the existing one-way designing can be improved into the one based on cooperation by enabling the exchange of decision making details between concerned parties in the curtain wall design phase in this study and ultimately proposes a curtain wall design management system which enables generation and alteration of information on curtain wall products, information gathering and sharing of information, etc by materializing a design system of simultaneous engineering concept.

Numerous studies have suggested that the traditional project management tools do not adequately support the coordination efforts required to successfully deliver projects. because they were not developed to control uncertainty which is one of the characteristic of construction project. In traditional construction process control, supervisor usually measures the quantity of production for the project schedule. Flow production has suggested that better productivity, like that labor and cost performance can be achieved by reducing work flows variability. This research has suggested that 1) the circular concept of productivity with work flows variation. 2) the indicators that quantitatively measure work flows variation using productivity data which is obtained from the document of construction field. 3) measurement of productivity-based work flows variation for analyzing correlation with variation of productivity and verifies.

To solve existing old building was reconstruction whose regulation has been stronger than before. On the other side, Remodeling project become active. In spite of Remodeling project activation policy of a government, relaxation of some regulation and Remodeling technology development, etc, but Domestic Remodeling market place did nor yet vitalize. This is application of existing resources on condition which has working place, restriction of method and unreliable existing building’s career management, so difficulty of getting information has many risk factors. The more serious problem is lack of understanding about Remodeling, limit of communication and lack of systematic process about complexity of project, etc. of Remodeling project operator and each participant, happening construction term delay, waste of budget, a fall of quality. This study suggests each process work scope of project execution and various kinds analysis tools for decision making for efficient management and building of project system and builds project execution process system. identification.

Since the beginning of our military history, we are continuously interested in supplying apartment for military officers. So we possessed 72,361 households and used in 2002. however, 18% of those are over 20years and need to be remodeled. Department of Military has taken this fact seriously to solve the problems, they built more new buildings, rent public buildings and remodeled the old one. But, The procedure of present military apartment remodeling has many problems at the stage of evaluating the priorities in various remodeling projects which have been caused from lots of corps. I’ve reviewed the study of military apartment business and applied the AHP(Analytic Hierarchy Process) method which is effective to evaluate the priorities in various groups’ decision.