Unified Modelling Language (UML) Effect on the Total Cost of Ownership (TCO) for a Software Development

Iraqi Journal of Science ◽

10.24996/ijs.2021.si.1.29 ◽

2021 ◽

pp. 207-209

Author(s):

Ahmed Altaher

Keyword(s):

Software Maintenance ◽

Object Oriented ◽

Modelling Language ◽

Total Cost Of Ownership ◽

Total Cost ◽

Analysis And Design ◽

Unified Modelling Language ◽

Cost Of Ownership ◽

Software Product ◽

The Cost

UML (Unfiled Modeling Language), known as the standard method for object-oriented (analysis and design) modeling, includes other languages which enables it to implement a prototype of the structure and behaviors of the product. This paper attempts to explore the observations about UML role on the cost of software maintenance, and hence on the Total Cost of Ownership (TCO) of a software product. It is therefore important to investigate the benefits obtained through modeling..

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SISTEM INFORMASI PENJADWALAN CERAMAH MENGGUNAKAN ALGORITMA GREEDY

Jurnal Ilmiah Rekayasa dan Manajemen Sistem Informasi ◽

10.24014/rmsi.v5i1.7380 ◽

2019 ◽

Vol 5 (1) ◽

pp. 109

Author(s):

Suci Ayu Mawarni ◽

Zarnelly Zarnelly ◽

Arif Marsal

Keyword(s):

Object Oriented ◽

Modelling Language ◽

Analysis And Design ◽

Unified Modelling Language ◽

Object Oriented Analysis

Salah satu organisasi kemasyarakatan yang berbasis kegiatan keagamaan di Indonesia adalah Majelis Dakwah Islamiyah (MDI) yang terletak di jakarta utara dan kota pekanbaru adalah lembaga dakwah yang mengemban amanat yang menjalankan dakwah Dinayah (agama), Insaniyah (kemanusiaan) dakwah Wathoniah (Patriotik). waktu yang dibutuhkan untuk membuat jadwal ceramah pada bulan ramadhan adalah lima bulan. Saat ini di MDI Pekanbaru terdapat 800 masjid/musalah dan 1088 mubaligh/mubalighah dan waktu yang dibutuhkan untuk membuat jadwal khutbah jum’at mubaligh adalah satu bulan untuk menyusun 4 bulan jadwal. Terdapat 407 masjid/musalah dan 499 mubaligh. serta harus memperhatikan empat buah kriteria, yaitu: (1) usia mubaligh; (2) kemampuan mubaligh; (3) alamat mubaligh, (4) tingkat kedisiplinan mubaligh. Penelitian ini membuat sistem informasi penjadwalan ceramah yang bisa menyusun jadwal secara otomatis menggunakan algoritma greedy untuk mengatasi permasalahan yang ada dan dapat membantu sekretaris dalam menyusun jadwal ceramah mubaligh, dengan waktu yang lebih cepat serta meminimalisir tingkat kesalahan dalam membuat jadwal (Jadwal Bentrok) antara tempat yang satu dengan tempat yang lain. Pendekatan analisis dan desain yang digunakan dalam penelitian ini adalah object oriented analysis and design (OOAD) dengan bantuan model unified modelling language (UML). Berdasarkan hasil pengujian blackbox, semua fitur-fitur di sistem ini berjalan 100%. User acceptence test menunjukkan bahwa tingkat penerimaan pengguna terhadap sistem adalah 98%.

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Thermoeconomic Optimization of a Combined Heating and Humidification Coil for HVAC Systems

Journal of Non-Equilibrium Thermodynamics ◽

10.1515/jnet-2015-0057 ◽

2016 ◽

Vol 41 (3) ◽

Cited By ~ 2

Author(s):

Liliana Teodoros ◽

Bjarne Andresen

Keyword(s):

Minimum Cost ◽

Total Cost Of Ownership ◽

Total Cost ◽

Air Handling Unit ◽

Operation Costs ◽

Cost Of Ownership ◽

Optimization Function ◽

Length Width ◽

The Cost ◽

The Relationship

AbstractThe total cost of ownership is calculated for a combined heating and humidification coil of an air-handling unit taking into account investment and operation costs simultaneously. This total cost represents the optimization function for which the minimum is sought. The parameters for the cost dependencies are the physical dimensions of the coil: length, width and height. The term “coil” is used generically since in this setup it generates heating as well as humidification in a single unit. The first part of the paper deals with the constructive optimization and finds the relationship between the dimensions for a minimum cost. The second part of the paper takes the results of the constructive optimization further and, based on the data derived in our previous papers, analyzes the minimum total cost for the humidification coil while balancing the amount of water used to humidify the air and modify its temperature.

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PENGEMBANGAN SISTEM PENILAIAN KINERJA DOSEN STUDI KASUS: UNIVERSITAS BANTEN JAYA

ICIT Journal ◽

10.33050/icit.v3i2.60 ◽

2017 ◽

Vol 3 (2) ◽

pp. 241-259

Author(s):

Rizki Fatullah

Keyword(s):

Object Oriented ◽

Modelling Language ◽

Purposive Sampling ◽

Analysis And Design ◽

Unified Modelling Language ◽

Object Oriented Analysis

Penilaian kinerja dosen merupakan rutinitas suatu perguruan tinggi dalam meningkatkan kualitas internal secara berkelanjutan. Universitas Banten Jaya secara rutin melakukan evaluasi kinerja dosen. melakukan penilaian kinerja dosen setiap akhir semester gasal dan genap. Penilaian kinerja Dosen selama ini dilakukan secara manual dengan melakukan penyebaran kuesioner, melalui persepsi mahasiswa, rekan sejawat serta atasan langsung. Penelitian ini bertujuan untuk pengembangan sistem informasi penilaian kinerja Dosen untuk membantu pengambilan keputusan. Dalam hal ini Universitas Banten Jaya mengembangkan sebuah aplikasi terintegrasi yang mengelola data dosen. Metode pengembangan sistem informasi menggunakan model Waterfall. Metode pengumpulan data dilakukan dengan observasi, studi pustaka,dan wawancara terhadap sampel yang dipilih dengan menggunakan metode purposive sampling. Metode yang digunakan dalam menganalisis dan merancang sistem adalah metode Analisis dan Perancangan Berorientasi Obyek (Object Oriented Analysis and Design) menggunakan Unified Modelling Language (UML). Pengujian system kinerja dosen menggunakan metode Blackbox untuk mengetahui kualitas terhadap system. Pengembangan Sistem Kinerja Dosen yang dihasilkan diharapkan berfungsi menyediakan informasi tentang kegiatan dosen yang dihasilkan dan pemanfaatannya yang terintegrasi serta akurat. Kata Kunci : Sistem Informasi, Penilaian kinerja dosen, Simple Additive Weigh

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Thermocouple Protection Tube Options for Aluminium Casthouses

Materials Science Forum ◽

10.4028/www.scientific.net/msf.693.112 ◽

2011 ◽

Vol 693 ◽

pp. 112-121

Author(s):

Peter Herd ◽

Jim Chen

Keyword(s):

Process Control ◽

Remote Monitoring ◽

Temperature Monitoring ◽

Operating Environment ◽

Total Cost Of Ownership ◽

Total Cost ◽

Cost Of Ownership ◽

Protection Tube ◽

The Cost ◽

Continuous Temperature

Thermocouple Protection Tubes (TCPTs) are utilised to allow continuous temperature monitoring in harsh and demanding environments for remote monitoring and process control. Choice of optimum TCPT for an application is dependent on a thorough understanding of the operating environment, characteristics of the TCPTs available and an assessment of the Total Cost of Ownership (TCO) of the different options, including the cost of the particular thermocouple being protected.

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Perancangan Sistem E-Voting Untuk Pemilihan Ketua OSIS SMP Negeri 10 Pekanbaru

ZONAsi: Jurnal Sistem Informasi ◽

10.31849/zn.v1i2.2809 ◽

2020 ◽

Vol 1 (2) ◽

pp. 75-85

Author(s):

Febrizal Alfarasy Syam ◽

Yuvi Darmayunata ◽

Afriansyah Afriansyah

Keyword(s):

Object Oriented ◽

Modelling Language ◽

Analysis And Design ◽

Unified Modelling Language ◽

Object Oriented Analysis

SMP Negeri 10 Pekanbaru setiap tahunnya melakukan pemilihan Ketua OSIS. Proses pemilihan Ketua OSIS SMP Negeri 10 Pekanbaru dilakukan dengan cara voting oleh seluruh siswa secara langsung. Namun voting yang dilakukan masih secara konvensional yaitu pemilihan masih menggunakan kertas sebagai sarana untuk pemilih menentukan pilihannya dan dalam perhitungan suara hasil pemilihan juga dilakukan secara manual, sehingga akan memerlukan biaya yang besar dan waktu yang cukup lama untuk mengetahui hasilnya. Pemanfaatan sistem e-voting, merupakan solusi yang diberikan penulis untuk meyelesaikan masalah tersebut. Pada tahap analisa dan perancangan penulis menggunakan metode pendekatan Object Oriented Analysis and Design (OOAD). Sedangkan pemodelan sistem menggunakan pendekatan UML (Unified Modelling Language). Hasil dari penelitian ini diharapankan dapat menyelesaikan masalah-masalah tentang proses pemilihan Ketua OSIS SMP Negeri 10 Pekanbaru sehingga dapat dilaksanakan secara efektif, efisien, cepat dan transparan

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Assessment of the Total Cost of Ownership of Electric Vehicles in Poland

Energies ◽

10.3390/en14164806 ◽

2021 ◽

Vol 14 (16) ◽

pp. 4806

Author(s):

Sendek-Matysiak Ewelina ◽

Krzysztof Grysa

Keyword(s):

Development Strategy ◽

Electric Vehicles ◽

Combustion Engine ◽

Point Of View ◽

Total Cost Of Ownership ◽

Total Cost ◽

Electric Cars ◽

Automotive Market ◽

Cost Of Ownership ◽

The Cost

Eliminating environmental and air pollution is one of the European Union’s priority actions in the field of transport. Poland, as a member of the European Community, is also actively involved in these activities. The flagship project, the implementation of which is expected to bring tangible effects in this respect, is the “Sustainable Transport Development Strategy until 2030”. It states that in 2030 there should be 600,000 BEVs (battery electric vehicles) on Polish roads. At present, the share of such vehicles in the automotive market in Poland is small, which is a result of a number of barriers. One of them, very important considering the preferences of Poles, is the cost of buying such a car, which is currently at least 40% higher than its counterpart with a combustion engine. Meanwhile, popularizers of electric cars believe that the cost of buying such a vehicle is offset by the subsequent costs associated with its operation. Hence, this paper determines and then compares the total purchase and operating costs of cars of the same make, same model, differing in the source of propulsion, to category M1. Cars in this category represent the largest share of the automotive market in Poland—over 75%. The main objective of the analysis conducted was to determine if a current electric passenger vehicle can be competitive with an internal combustion car in everyday use. Therefore, a relationship was developed to calculate the total cost of ownership, which takes into account all the key criteria from the point of view of private vehicle use. The utilitarian value of this research may be supported by the fact that the example of Poland and its problems concerning the issue in question may serve as a source of preliminary analysis for other countries.

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Total Cost of Ownership Model and Significant Cost Parameters for the Design of Electric Bus Systems

Energies ◽

10.3390/en13123262 ◽

2020 ◽

Vol 13 (12) ◽

pp. 3262

Author(s):

Anders Grauers ◽

Sven Borén ◽

Oscar Enerbäck

Keyword(s):

Cost Effective ◽

Total Cost Of Ownership ◽

Significant Cost ◽

Total Cost ◽

Cost Of Ownership ◽

Electric Bus ◽

Cost Modelling ◽

Different Types ◽

Cost Parameters ◽

The Cost

Without experiences of electric buses, public transport authorities and bus operators have faced questions about how to implement them in a cost-effective way. Simple cost modelling cannot show how costs for different types of electric buses differ between different routes and timetables. Tools (e.g., HASTUS, PtMS, and optibus) which can analyse such details are complicated, time consuming to use, and provide insufficient insights into the mechanisms that influence the cost. This paper therefore proposes a method for how to calculate total cost of ownership, for different types of electric buses, in a way which can predict how the cost varies based on route and timetable. The method excludes factors which cause minor cost variations in an almost random manor, in order to better show the fundamental mechanisms influencing different costs. The method will help in finding ways to reduce the cost and help to define a few cases which deserve a deep analysis with more complete tools. Testing of the method in a Swedish context showed that the results are in line with other theoretical and practical studies, and how the total cost of ownership can vary depending on the variables.

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Electric Powertrain Topology Analysis and Design for Heavy-Duty Trucks

Energies ◽

10.3390/en13102434 ◽

2020 ◽

Vol 13 (10) ◽

pp. 2434

Author(s):

Frans J. R. Verbruggen ◽

Emilia Silvas ◽

Theo Hofman

Keyword(s):

Road Transport ◽

Bilevel Optimization ◽

Electric Machines ◽

Heavy Duty ◽

Total Cost Of Ownership ◽

Total Cost ◽

Analysis And Design ◽

Cost Of Ownership ◽

System Design Optimization ◽

Central Drive

Powertrain system design optimization is an unexplored territory for battery electric trucks, which only recently have been seen as a feasible solution for sustainable road transport. To investigate the potential of these vehicles, in this paper, a variety of new battery electric powertrain topologies for heavy-duty trucks is studied. Thereby, topological design considerations are analyzed related to having: (a) a central or distributed drive system (individually-driven wheels); (b) a single or a multi-speed gearbox; and finally, (c) a single or multiple electric machines. For reasons of comparison, each concurrent powertrain topology is optimized using a bilevel optimization framework, incorporating both powertrain components and control design. The results show that the combined choice of powertrain topology and number of gears in the gearbox can result in a 5.6% total-cost-of-ownership variation of the vehicle and can, significantly, influence the optimal sizing of the electric machine(s). The lowest total-cost-of-ownership is achieved by a distributed topology with two electric machines and two two-speed gearboxes. Furthermore, results show that the largest average reduction in total-cost-of-ownership is achieved by choosing a distributed drive over a central drive topology (−1.0%); followed by using a two-speed gearbox over a single speed (−0.6%); and lastly, by using two electric machines over using one for the central drive topologies (−0.3%).

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