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Abstrak :
Industri manufaktur merupakan suatu industri yang mengolah bahan mentah menjadi produk setengah jadi atau produk jadi. Tahap desain merupakan tahapan yang paling berpengaruh dalam industri manufaktur sebab tahapan ini mempengaruhi 70 - 80 % biaya produksi. Salah satu cara untuk membuat produk dalam proses manufaktur adalah dengan proses permesinan. Hampir semua proses produksi (60% sampai 80%) melalui proses permesinan, baik produknya secara langsung maupun pembuatan tools yang digunakan. Proses bubut menjadi proses yang paling sering digunakan pada proses permesinan. Jong Yun Jung mengklasifikasikan enam fitur dasar yang dapat dibentuk dengan proses bubut, yaitu groove, step, chamfer, round, neck, dan cylinder. Keenam fitur dasar ini dinamai rotational feature. Pada penelitian ini akan dihitung nilai kompleksitas dari setup proses bubut dengan mesin CNC. Perhitungan dilakukan terhadap enam fitur dasar yang diklasifikasikan Jong Yun Jung. Metode perhitungan kompleksitas yang digunakan adalah metode yang diperkenalkan oleh El Maraghy dan Urbanic dimana penilaian dilakukan berdasarkan jumlah informasi, variasi informasi, dan isi informasi dari setup proses bubut CNC. Hasil perhitungan dan analisis menunjukan bahwa nilai kompleksitas setup proses bubut relatif berdekatan untuk keenam rotational feature (∑pcx 9.928 - 10.481) dan aspek penting yang mempengaruhi perbedaan nilai kompleksitas tersebut adalah assy time pahat. ......The manufacturing industry is an industry that processes raw materials into semi-finished products or finished products. The design stage is the most influential stages in the manufacturing industry because of this stage affects 70-80 % of production costs. One way to make the product in the manufacturing process is with the machining process. Almost all the production process (60% to 80%) through the machining process, either directly or indirectly. Turning process is a process that is often used in the machining process. Jong Yun Jung classifies six basic features that can be formed by turning process (groove, step, chamfer, round, neck, and cylinder) called as rotational feature. This research calculated the value of the complexity of the setup process CNC lathe machine. Calculations carried out on six basic features that are classified Jong Yun Jung. The method used was introduced by El Maraghy and Urbanic where the assessment is based on the quantity of information, diversity of information, and information content of CNC lathe setup process. In addition, the study also weights of each subprocess in the CNC lathe setup process, so that it can be seen which subprocess that is the most influential in the whole setup process complexity. The calculation and analysis show that the complexity of setup process is relatively close to each six rotational feature ( Σpcx 9928-10481 ) and important aspects that influence differences in complexity value is tool's assy time.

Abstrak :
The goal of this book is to uncover techniques that will aid in overcoming complexity and enable us to produce reliable, dependable computer systems that will operate as intended, and yet are produced on-time, in budget, and are evolvable, both over time and at run time. We hope that the contributions in this book will aid in understanding the nature of software complexity and provide guidance for the control or avoidance of complexity in the engineering of complex software systems.

Abstrak :
This book shows how some of these ideas from the science of complexity can be applied to the study and management of social phenomena, including traffic flow, economic markets, opinion formation and the growth and structure of cities. Building on these successes, the book argues that the complex-systems view of the social sciences has now matured sufficiently for it to be possible, desirable and perhaps essential to attempt a grander objective: to integrate these efforts into a unified scheme for studying, understanding and ultimately predicting what happens in the world we have made. Such a scheme would require the mobilization and collaboration of many different research communities, and would allow society and its interactions with the physical environment to be explored through realistic models and large-scale data collection and analysis. It should enable us to find new and effective solutions to major global problems such as conflict, disease, financial instability, environmental despoliation and poverty, while avoiding unintended policy consequences. It could give us the foresight to anticipate and ameliorate crises, and to begin tackling some of the most intractable problems of the twenty-first century.

Abstrak :
Focuses on finding the minimum number of arithmetic operations needed to perform the computation and on finding a better algorithm when improvement is possible. The author concentrates on that class of problems concerned with computing a system of bilinear forms. Results that lead to applications in the area of signal processing are emphasized, since (1) even a modest reduction in the execution time of signal processing problems could have practical significance; (2) results in this area are relatively new and are scattered in journal articles; and (3) this emphasis indicates the flavor of complexity of computation.

Abstrak :
Strategic decision makin (SDM) is still a mystery and need to be elaborated more deeply for both scholars and practitioners. Therefore,the main aim of this paper is to propose how we can measure the quality of strategi c-decision.....

Abstrak :
Tantangan industri berupa biaya produksi lebih rendah, pendeknya waktu produksi dengan kualitas produk tinggi, salah satunya dapat dicapai dengan adanya peluang untuk menyatukan DFMA dalam model kompleksitas produk dan proses El-Maraghy, yang memiliki pendekatan yang sama yaitu feature. Penggabungan dilakukan dengan memasukkan parameter DFMA langsung ke dalam model kompleksitas produk dan proses. Tujuan penelitian ini adalah pemaparan metodologi penggabungan dan pengujian metodologi pada contoh kasus produk sand casting. Hasil penelitian menunjukkan metode gabungan mampu mengindekskan komponen otomotif hasil sand casting secara mudah dan parameter DFMA tergambar lebih detail, sehingga memudahkan analisa apabila terjadi perubahan desain produk.

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Worldwide industrial challenges are low cost, short time, and high quality, can be achieved by fulfilling an opportunity to merge DFMA in to product and process complexity. Both DFMA and El-Maraghy complexity modeling, are using feature approach. The merger is conducted by inputting DFMA parameter directly in to complexity model. The purpose of this research, are: exposing step by step of merging method, and testing the unification method to index sand casting product. The outputs are: the method can simply index automotive component made by sand casting process, and the DFMA parameter is clearly shown so it can ease product design changes analysis.

Abstrak :
ABSTRAK Indeks kompleksitas produk merupakan indikator dari suatu produk manufaktur yang menggambarkan produk didesain serta diproduksi dengan tingkat kerumitan atau kompleksitas tertentu. Pada penelitian ini dilakukan penilaian kompleksitas produk dan kompleksitas proses pemesinan terhadap dies panel roof, Produk yang akan dipakai untuk penelitian adalah 3 bagian utama dari dies drawing, yaitu punch, blank holder dan upper die, karena 3 bagian ini yang paling berpengaruh dari dies drawing. Selanjutnya produk ini akan dianalisa seberapa besar perubahan nilai kompleksitas produk dan nilai kompleksitas proses pemesinannya apabila ada perubahan desain pada produk panel roofnya. Penilaian dilakukan terhadap variabel kompleksitas produk berdasarkan aspek feature dan spesifikasi produk yaitu shape, geometri, tolerance, kekasaran permukaan dan kekerasan. Metode yang digunakan adalah metode yang diperkenalkan oleh ElMaraghy dan Urbanic dimana penilaian dilakukan berdasarkan atas jumlah informasi, variasi informasi dan isi informasi suatu produk. Hasil penilaian kompleksitas produk dan kompleksitas proses pemesinan menunjukkan perubahan pada bagian punch dan upper-die sebesar 2% . Perubahan ini kurang signifikan (yaitu dibawah 5%). Sehingga perubahan ini diabaikan jadi perubahan desain dari panel roof ini tidak mempengaruhi nilai kompleksitas diesnya.

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Abstract Product complexity index is an indicator product of manufacturing that describe the products designed and manufactured with a level of complexity or specified complexity. In this study an assessment of product complexity and the complexity of the machining process of the panel roof dies product, product to be used for research are the three main parts of the drawing dies, further products will be analized how much the change in value of product complexity and complexity of the machining process if there are changes in product design panel. Assessment conducted on the variable complexity of the product dies based on aspects of the product features and specifications of shape, geometry, tolerance, surface roughness and hardness. The method used was introduced by ElMaraghy and Urbanic where the assessment is based on the amount of information, variety of information and the information content of a product. The results of assessment of the product complexity and the machining process complexity showed the same changes for punch also for upper-die as big as 2%. These changes are less significant (ie below 5%). So that this change is negligible so the changes of panel roof design does not affect the complexty of the dies.

Abstrak :
Jig merupakan salah satu alat bantu kegiatan manufaktur yang berfungsi untuk memposisikan, dan mengunci benda kerja pada lokasi kerjanya sebelum proses perakitan atau permesinan dilakukan. Jig untuk proses tack welding frame bolster kereta KKBW PT INKA (Persero) memiliki waktu pemasangannya yang cukup lama, dan frekuensi output yang terdeformasi cukup banyak, menjadi dasar bagi penulis untuk memodifikasi desain jig tersebut agar lebih optimal. Design For Manufacture & Assembly atau DFMA adalah sebuah metode rekayasa yang berfokus pada pengurangan time-to-market dan total biaya produksi dengan memprioritaskan kemudahan pembuatan part dari produk dan perakitan part produk yang disederhanakan. DFMA dibedakan menjadi DFA atau Design For Assembly dan DFM atau Design For Manufacture. Konsep DFA ini akan diaplikasikan dalam dua proses perakitan, yaitu proses pemasangan frame bolster ke jig dan proses perakitan jig itu sendiri. Konsep DFM akan digunakan untuk menganalisis biaya manufaktur sebelum dan setelah dilakukannya modifikasi. Teori terkait kompleksitas juga akan diterapkan untuk memastikan bahwa nilai kerumitan atau kompleksitas dari proses-proses perakitan setelah modifikasi desain jig menurun. Menggunakan konsep-konsep dari metode DFMA, didapatkan penurunan waktu pemasangan frame bolster ke jig sebesar 31,39% dengan penurunan kompleksitas perakitannya sebesar 10,34%, penurunan waktu perakitan jig ke ground base sebesar 28,21% dengan penurunan kompleksitas perakitannya sebesar 7,14%,dan penurunan biaya manufaktur sebesar 9,53%. ......Jig is one of the manufacturing tools that functions to position and lock the workpiece in its work location before the assembly or machining process is carried out. The jig used for tack welding process of PT INKA (Persero) KKBW train bolster frames have a long installation time, and quite a lot of deformed output frequencies, which is the basis for the author to modify the jig design to make it more optimal. Design For Manufacture & Assembly or DFMA is an engineering method that focuses on reducing time-to-market and total production costs by prioritizing the ease of manufacturing parts of products and simplified assembly of product parts. DFMA can be divided into DFA or Design For Assembly and DFM or Design For Manufacture. DFA concepts were applied into two processes of the jig, those are: the installation of bolster' frames into the jig, and the assembly of the jig' parts itself into the ground base. DFM concepts were used to analyze the cost to manufacture the jig. Using concepts from the DFMA method, results in 31.39% decrease in the installation time of the bolster frames to the jig with a 10.34% reduction in assembly complexity, 28.21% decrease in the assembly time of the jig' part into the the ground base with a 7.14% reduction in assembly complexity, and a 9.53% reduction in manufacturing costs.

Abstrak :
This monograph presents selected new developments in such areas of dependability research as system modelling, tools and methodologies for system analysis, data security, secure system design and specific dependability aspects in specialized technical applications. Many practical cases illustrate the universal rule that complexity and multiplicity of system processes, their concurrency and their reliance on embedded intelligence (human and artificial) significantly impedes construction of strict mathematical models and calls for application of intelligent and soft computing methods.