Hybrid flow shop scheduling problems with multiprocessor tasks to minimize the makespan have been addressed and solved efficiently. Several approaches were used, including greedy methods and metaheuristics. In this paper, we proposed a mixed integer programming (MIP) model that can define explicitly and precisely the nature of a given problem. We also addressed a modified lower bound to obtain tighter bounds. Additionally, we propose different decoding methods and emphasize their importance in hybrid flow shop scheduling problems with multiprocessor tasks. By using existing test problems with n=5 in examining the proposed methods, many optimal solutions can be obtained as benchmarks for reference by the MIP model. Accordingly, the results are indicative of the influence of the decoding methods on the solutions to the hybrid flow shop problems with multiprocessor tasks.

The aim of this paper is to show how to apply TRIZ to resolve difficulties and conflicts in Automatic Optical Inspection (AOI) for detecting surface defects on small metal parts and saving effort-spent (energy saving). TRIZ has been well-known as a creative and innovative thinking theory in solving engineering and technology contradictions in the last two decades. However, few studies and practical usage were proposed in AOI area. Conflicts occurring in AOI are discussed to demonstrate the ideas guided by 39 TRIZ management parameters, 40 innovative principles, and contradiction matrix. The results show that TRIZ is able to provide direct, quick and effective alternatives to resolve the conflicts in AOI. In this manner, huge effort and cost can be saved in further execution stage. In this paper, the detection for surface defects on small and precise metal part are utilized as a case study to describe the proposed TRIZ-based conflicts-solution in AOI implementation.

The aim of this paper is to show how to apply TRIZ to resolve conflicts in management area, especially in product life management (PLM) in desinging and manfacturing smart-phone. TRIZ has been well-known as a creative and innovative thinking theory in solving engineering and technology contradictions in the last two decades. However, few studies and practical usage were proposed in management area. Conflicts occurring in product life management including schedule, budget, and risk ones at smart phone R&D process are discussed to demonstrate the ideas guided by 39 TRIZ management parameters, 40 TRIZ innovative principles, and contradiction matrix. The results show that TRIZ is able to provide direct, quick and effective alternatives to resolve the conflicts in PLM. In this manner, huge effort and cost can be saved in further project execution stage. In this paper, an innovative 3C consuming product such as smart-phone is utilized as a case study to describe the proposed TRIZ-based conflicts-solving approaches at PLM stage.

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