## 1 Introduction  
As the hyper-dynamic development and popularization of telecommunication technology and mobile devices (such as notebooks, tablets, smart-phones etc. ), most consumers not only singly surf and download information but they also further interactively share and upload news and information in real-time to diversified internet websites with the contemporary Internet of Things (IoT) technology, especially in purchasing transactions of Electronic Commerce (\"e-commerce\") while pursuing the best quality of products and services at the lowest prices [1]. According to the latest annual 2018 Statista report of Global Electronic Commerce Trend and Statistic by Amasty Ltd. (\"Amasty 2018 Report\"), the worldwide retail e-commerce sales has reached 2.842 billion US dollars in 2018 from 2304 billion US dollars in 2017 as shown in Figure 1. In 2019, the worldwide retail e-commerce sales is expected to increase to 3453 billion US dollars with a projected growth rate of the entire e-commerce market of 21.49% in 2019. This growth is the result of the various technological functions and applications of emerging development in artificial intelligence, such as big-data mining, big-data analysis, augmented reality, virtual reality and so forth. Based on the Amasty 2018 Report, the e-commerce market share in Asia surpassed 50% of the global e-commerce market beginning in 2017. It was crucial to recognize that Asia is responsible for half of the mobile commerce market. China, United Arab Emirates and Turkey have the highest number of mobile shoppers in entire world, with 68%, 57% and 53% of their respective total population. Momentously, India, Taiwan and Malaysia have replaced Japan, the United Kingdom and South Korea with the three highest growth rates countries in the e-commerce market. In order to understand the e-commerce customer's purchasing-decision behaviors, the Amasty report specifically delivered two surveyed conclusions--(1) eight out of ten e-commerce customers in the IoT era use their smartphones as in-store shopping assistants while shopping in brick and mortar stores and (2) 78% of e-commerce customers were influenced on integrating e-commerce and in-store experiences during in-store purchases. In succession, due to the diversified applications of e-commerce technology in various industries, Omnichannels e-commerce has been formed to cover abstract and concrete commerce trades and platforms including physical stores, computers, kiosk machines, IoT internet websites, social media, online catalogs, smart phones, gaming consoles and so forth. In order to detect this such profitable niche and develop a trend in current omnichannels e-commercial market [2], \"how to delve into the most potential IoT technology determinants in the omnichannels e-commerce purchasing decision-making processes\" has been the critical research mainstream [3] for creating the most effective profits and commercial niche [4] in this contemporary hyper-dynamic and hyper-competitive omnichannels e-commerce era. After making a series of comprehensive surveys [5; 6; 7; 8; 9] in the omnichannels e-commerce market, there is no one to be able to simultaneously analyze the interplays and dependences between IoT technology and the purchasing-decision behaviors in contemporary omnichannels e-commerce relative research fields. The reason is the majority of purchasing-decision researches in omnichannels e-commerce research field have only focused on increasing the effectiveness of purchasing trade processes or the wonderful expressions of products or services without the comprehensive considerations of the technological in-depth influences in consumer's purchasing-decision and the extensive correlations among individual customers, consumer  
Figure 1: 2018 Statista report of global omnichannel e-commerce trend and statistic by Amasty Ltd.  
groups and society as a whole.