Journal
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
Volume 178, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.techfore.2022.121549
Keywords
Product family evolution; Dynamic model; Neural network; Forecasting model; Grey relational analysis; Fuzzy analytical hierarchy process
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In this research, a dynamic model for product family evolution combined with forecasting is proposed, taking into account market demand, customer needs, and technological requirements. The evaluations of product family evolution are based on Grey Relational Analysis and Fuzzy Analytical Hierarchy Process. A data-driven neural network-based forecasting model is also introduced. Numerical simulation and a case study of Apple's iPhone product family demonstrate the effectiveness of the developed approach in identifying influential key design features and best performed products for future product evolution.
Products continuously evolve over time. Realizing the pattern of product family evolution along with proper estimation of features for future products has been regarded as a critical issue for business success. Focusing on this issue, a dynamic model for product family evolution combined with forecasting is proposed in this research work. The proposed model considers the influence of market demand, customer needs and technological requirements that are time-dependent. The methodology is a four-phase model. In this model the evaluations of product family evolution are based on the Grey Relational Analysis and Fuzzy Analytical Hierarchy Process. Sensitivity is performed to investigate the reliability of the model. In addition, a data-driven neural network-based forecasting model is proposed that can forecast the specification of the most influential features of future product with a reasonable accuracy. This forecasting model utilizes the information of the previous generation's product. For each phase, the effectiveness of the developed approach is demonstrated with numerical simulation results and validated with a case study of Apple's iPhone product family. The case study shows that the approach is very effective to identify the most influential key design features and best performed products that will influence the evolution design of future product.
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