scholarly journals Integrated System Development Methodology Design And LCC (Life Cycle Cost) Data Process

2015 ◽  
Vol 8 (24) ◽  
Author(s):  
Kiyoung Son ◽  
Hanguk Ryu
2020 ◽  
Vol 70 (4) ◽  
pp. 482-492
Author(s):  
Hongmei Gu ◽  
Shaobo Liang ◽  
Richard Bergman

Abstract Mass timber building materials such as cross-laminated timber (CLT) have captured attention in mid- to high-rise building designs because of their potential environmental benefits. The recently updated multistory building code also enables greater utilization of these wood building materials. The cost-effectiveness of mass timber buildings is also undergoing substantial analysis. Given the relatively new presence of CLT in United States, high front-end construction costs are expected. This study presents the life-cycle cost (LCC) for a 12-story, 8,360-m2 mass timber building to be built in Portland, Oregon. The goal was to assess its total life-cycle cost (TLCC) relative to a functionally equivalent reinforced-concrete building design using our in-house-developed LCC tool. Based on commercial construction cost data from the RSMeans database, a mass timber building design is estimated to have 26 percent higher front-end costs than its concrete alternative. Front-end construction costs dominated the TLCC for both buildings. However, a decrease of 2.4 percent TLCC relative to concrete building was observed because of the estimated longer lifespan and higher end-of-life salvage value for the mass timber building. The end-of-life savings from demolition cost or salvage values in mass timber building could offset some initial construction costs. There are minimal historical construction cost data and lack of operational cost data for mass timber buildings; therefore, more studies and data are needed to make the generalization of these results. However, a solid methodology for mass timber building LCC was developed and applied to demonstrate several cost scenarios for mass timber building benefits or disadvantages.


2012 ◽  
Vol 433-440 ◽  
pp. 3425-3432
Author(s):  
Xiao Chuan Chen ◽  
Jin Fang Liu ◽  
Qing Li

This paper mainly focused on the life cycle cost collection of manufacturing product based on web and data organization methodology according to business requirements. The general features of manufacturing product life cycle cost were analyzed at first while cost collection objects and cost-related product features were chosen. After that, the software system was developed using .NET and C# web programming technique picking up cost data from credible websites on Internet. Then, life cycle cost data warehouse model was designed via features of cost collection object ending up with the establishment of data warehouse system acquiring cost data as data source. Basic data cleaning and data validation function was developed to meet data quality demand referring to data integrality, data authenticity and data time effectiveness. Finally, an exemplification system of family cars was set up successfully assembling 300 thousand plus records about 3500 car models in last 26 months. This system was proved to work without human manipulation over hours visiting 10 thousand web pages and collecting cost data. This proved the software was valid.


2019 ◽  
Vol 4 (2) ◽  
pp. 18-23
Author(s):  
Sucianna Ghadati Rabiha ◽  
Emny Harna Yossy ◽  
Sasmoko Sasmoko ◽  
Samuel Anindyo Widhoyoko ◽  
Yasinta Indrianti

Kebutuhan akan konsep dan mekanisme pengajaran dan pembelajaran berbasis teknologi informasi semakin tinggi. Hal ini dikarenakan perkuliahan di kelas memiliki batasan pada pertemuan sehingga waktu yang tersedia untuk melakukan interaksi belajar terbatas. Permasalahan tersebut dapat diatasi dengan menggunakan media teknologi komunikasi informasi yang disebut E-Learning. E-Learning menjadikan kuliah lebih interaktif karena siswa dapat berinteraksi dengan pembelajaran yang lebih luas melalui internet. Berdasarkan permasalahan dan manfaat dari E-Learning, maka Prof. Sasmoko berinisiatif membuat aplikasi E-Learning untuk mata kuliah yang diajarkan yaitu metode penelitian yang diberi nama sasmoko.com. Aplikasi dibuat menggunakan metode siklus hidup pengembangan sistem informasi (Life Cycle System Development Methodology) karena dapat melihat masalah secara sistematis dan struktural yang diawali dengan analisa perancangan, koding, dan pengujian sistem. Aplikasi menggunakan teknologi HTML 5 untuk interface dan Mysql untuk database. Adapun hasil yang didapatkan berupa aplikasi yang dapat membantu kegiatan belajar mengajar diluar jadwal seperti penyediaan materi, kuis atau tes, referensi berupa jurnal dan perpustakaan serta diskusi secara online


1988 ◽  
Vol 110 (2) ◽  
pp. 271-278
Author(s):  
J. C. Ness ◽  
C. B. Franks ◽  
R. L. Sadala

During the phases of a U.S. Navy acquisition program for any new system, such as a gas turbine system, various analyses are conducted to evaluate the economic and technical benefits that can be gained by the new system. It is important that the economic analyses provide a good estimation of the nonrecurring and recurring costs. For the development of a new gas turbine system, a test program to prove the system’s technical and operational capability will have to be conducted and a support system will have to be developed to operate and maintain it during its life cycle. The costs of the engine development, the test program, and the support system development are considered nonrecurring or investment costs. The operation and maintenance costs over the life of the system are the recurring costs. This paper presents the life cycle cost scenario that should be used to evaluate the economics of a U.S. Navy marine gas turbine and the considerations that should be included in a Return on Investment analysis of the engine. The major cost categories discussed include engineering, logistics support, program management, and deployment support. Also, the unique considerations that would apply to marine gas turbines for Naval use are discussed along with how these considerations affect the economics of a gas turbine acquisition program. In addition, the paper identifies the funding responsibility of each cost item and provides discussion on ways to reduce the investment cost.


Author(s):  
C. E. Curry

This paper deals with applying Life Cycle Cost (LCC) and Design To Cost (DTC) principles to aircraft engine programs. The dynamic driving elements of LCC are identified with an example of direct application to a deterministic computer model. This model was used as the principal tool to project operating and support costs for the XT701 turboshaft engine in conjunction with the U.S. Army Heavy Lift Helicopter Development that featured a specific DTC-related award fee in the contract. The overall methodology of LCC and DTC supported by the math model earned a Superior evaluation with an unprecedented 100 percent award fee for this kind of application. The customer audit, in support of the performance award, supports the conclusion that computer models can be used to enhance the LCC aspects of propulsion system development programs.


2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Hendra Kurniawan

Lifestyle is a secondary need in human life, which changes depending on the times or a person's desire to change his lifestyle. Along with the development of life style many people choose to want something that is practical and does not impose himself, for example, people who are lazy to wash clothes, shoes and others because far from home, make a lot of people who took the initiative to make services of laundry or the laundry for profit of the job. So a research was conducted on android-based shoe wash ordering services in the Waru area, Sidoarjo. The purpose of this study is to facilitate and assist small entrepreneurs in obtaining customers and to assist users of laundry shoeand shoe repair services in finding locations and using the services of these entrepreneurs. The research was conducted using the SDLC (methodSoftware Development Life Cycle). Where SDLC is a system development methodology to compile a new system to replace the old system, update or improve the existing system. To deal with this, anservice ordering application is created laundry android based shoeto help entrepreneurs and the community. This application is used by using theprogramming language Java along with MySQL database. The results of a survey given to 10 people, get 75% results which state that the application is quite helpful and satisfying. 


Many scholars claimed that due to maintenance, high reconstruction and construction costs in Malaysia, LCC shows an important role in estimating the cost of rigid pavement. Because of the government's expenditure and high budget allocation on pavement rehabilitation and maintenance work in Malaysia, choosing the most cost-effective pavement maintenance, maximizing the budget allocation and rehabilitation alternatives is essential for transportation agencies. A useful technique LCC of economic analysis that measures the different solutions of cost-effectiveness to rehabilitation and maintenance within the same category of roads. To generate a broad and accurate LCC output, however, it is necessary to ensure that the value information inputs are ready and of sufficient quality to use in the estimation of the LCC. This article shows the findings of Malaysia's systematic literature review inputs for LCC cost information study of dynamic pavement rehabilitation and maintenance. The literature study results showed that the greater part of key players in the construction industry are aware of the need for LCC analysis in the rigid rehabilitation and maintenance of the pavement. In Malaysia the LCC current state system of rigid pavement rehabilitation and maintenance, however, is still in its not only infancy stage but also is not ready for the difficulties to be implemented in achieving quality cost data to generate a reliable and comprehensive analysis of life cycle cost. The present findings of the paper which provide information on cost data current state inputs in the construction industry from the LCC analysis of rigid pavement rehabilitation and maintenance.


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