Scientific work reflects the value of its author in relation to his or her scientific skills and knowledge, although plagiarism raids the field as a result of poor choice of supervisor, and increased incompetence, nevertheless, any scientific discipline exhorts us to refer to the work of others and not to copy-paste, with no raison d'être in the subject explored.When we produce a scientific work, we need to know what it is intended to achieve, both in general and in business informatics in particular. Does this book concern only computer scientists?On the one hand, yes; on the other, no. How?No, for the simple reason that any researcher who reads it will have gained at least one useful element contributing in one way or another to his or her knowledge.