This chapter provides the reader with the relevant technical-scientific background as well as existing related products and research, also known as the state of the art, in the field(s) of the project.

Provide here an overview of the contents (structure) of this chapter.

Provide here all relevant concepts related to the topic(s) of the project

These are examples of citations to books [Rita Thapa, et al., 2019] and [Kazuko Obayashi, Shigeru Masuyama, 2020], a chapter on a smart companion [Alexandre Soares dos Reis, et al., 2020], articles on IoT [Abdelbaset S. Hamza, et al., 2023], blimps [Manuel Mahn, Markus Kemper, 2006], cloud computing [B. Sotomayor, et al., 2009], gas emissions [Ranjith, V. Velmurugan, S. Thanikaikarasan, 2020], pedestrian crossing behaviour [Anae Sobhani, Bilal Farooq, 2018], smart bicycles [YeongKyun Lee, Jongpil Jeong, 2018] and diaper moisture [Tareq Khan, 2018], and to Web resources [Android Open Source Project, 2014], [Cloud Expo, 2008] and [Gartner, 2021].

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Compare selected products and projects considering the requirements of your own solution

Provide here the conclusions of this chapter and make the bridge to the next chapter.

Based on this study of the state of the art, the team decided to adopt the following <specify here the architecture, technique(s), material(s), component(s)> because <specify here the technical/scientific reasons>.