Customer Relationship Management (CRM) refers to all the marketing and support strategies, techniques, and operations aimed at optimizing the quality of customer relationships. Its objective is to improve customer satisfaction while maximizing revenue or profit per customer. CRM relies on the analysis of customer data and uses all available communication channels to interact effectively with them.

Nanomaterials are substances that possess unique properties due to their microscopic size, typically on the order of nanometers. Their distinctive characteristics offer advantages in various fields, including medicine, electronics, and materials science. Thanks to their minuscule size, nanomaterials can exhibit physical and chemical properties distinct from those of macroscopic materials. Their increasing use is generating significant interest due to their potential to revolutionize numerous industrial sectors.

Public administrations and services have adopted user relationship management, equivalent to customer relationship management (CRM) in the private sector. Despite some similarities, user relationship management has its own specific characteristics due to the distinctions between users and customers, public services and businesses, civil servants and employees, as well as the different nature of the services offered (free or paid). The use of the term "user relationship management" generally indicates a desire on the part of the public services and local authorities concerned to draw inspiration from customer relationship practices, particularly regarding user experience and satisfaction.

Customer relationship management (CRM) encompasses all marketing and support activities aimed at improving the quality of customer interactions, fostering loyalty, and increasing revenue or profitability per customer. It integrates customer data analysis, marketing, and support, leveraging all available communication channels. More specifically, CRM can refer to the IT tools dedicated to customer management or direct customer interactions. Often referred to by the acronym CRM, customer relationship management is a cornerstone for any company focused on growth. A list of resources on customer relationship management is available for further exploration of this topic.