Abstract: This poster was born from a collaboration between a librarian (Francesca Martines) and the head of INAF IA2, Italian center for Astronomical Archives, (Cristina Knapic) for the drafting of: - a DMP template to be used in different use cases, such as different data providers, telescopes and / or simulations - a study over a complete data model as much as possible ready for FAIR principles - a policy suggestion/rules to enhance the citation in paper of observational dataeng In this poster we will focus on a study over a complete data model as much as possible ready for FAIR principles, looking for an efficient way to identify / cite data and datasets and link them to related publications.