scope:

Intent-based management enables simpler, more user-friendly expressions of input information, and higher flexibility in automation. Intent is a key enabler to increase automation and make management simpler; therefore the present document investigates the potential use of intents as key enabler for enhancing autonomous network and service management within ZSM framework. It provides a formal definition of intents and a list of principles of intent-driven management, leveraging existing standardization work. Some use cases are also included in the present document to provide examples of management domains where intents are applicable and capabilities that may be needed. Intent-driven management within the ZSM framework is investigated and the concept of an intent management entity is introduced, which is responsible for the life cycle management of intents and the exchange of intents between different management domains. The present document also maps the intent management entity with the concept of closed loops that is specified in ETSI GS ZSM 009-1 [i.11]. Intent modelling is also investigated, and two different approaches are proposed. The present document defines intent life cycle phases and a state diagram, together with a set of (mandatory and optional) interface capabilities that are needed for the life cycle management of intents. Finally, additional aspects such as conflicts between intents, intent translation, and intent testing are investigated. The present document outlines potential future work based on the topics explored and the critical areas that were identified in the present document.