Terminology

Scenario	A broader description of a context within which a system, product, technology, service is used: environment, background, circumstances of use, users, and vision of a future desired state. Scenarios can encompass multiple use cases or interactions and provide context for understanding the users’ needs, behaviours, motivations. Examples: agriculture e-health / telemedicine, energy / smart grid.
Use Case (UC)	Specific description of an interaction between a system and its users, or multiple systems / users within a scenario. Outlines the usage of a system, product, service, technology to achieve a specific outcome, with details on deployment and user actions. Focus on functionalities and interactions, detailing the sequence of events from the user’s perspective, and requirements measurable by key performance indicators.
Technical enabler	The technology components / systems or networks needed to deliver the key values for a Use Case.
Key Performance Indicator (KPI)	Quantitative indicators for measuring the technology components and technical enablers of a Use Case throughout its lifecycle.
Requirements	Functionalities or performance parameters defined as KPIs for the realisation of a component / system or network for one of different Use Cases.
Sustainability areas	Environmental sustainability: refers to responsibility to conserve natural resources and protect global ecosystems to support health and wellbeing. Societal sustainability: refers to inclusive, empowered, and resilient societies where citizens have equal opportunities, access to affordable energy, water, food, housing, education, healthcare, and job opportunities, where they have a voice, and governments respond. Economic sustainability: refers to practices that support long-term economic growth without negatively impacting societal, environmental, and cultural aspects.
Sustainability aspects	Sustainable 6G: refers to the ambition to minimise the direct negative sustainability value outcomes, i.e. the footprint. 6G for Sustainability: refers to the indirectly induced contribution (benefits and challenges) of 6G to the various aspects of sustainability in vertical sectors, with the ambition to maximise positive sustainability value outcomes.
Eco-design	Refers to the integration of environmental aspects into the product development process, by balancing environmental and economic requirements. Eco-design aims to develop goods and activities that don’t impact negatively the environment, considering environmental aspects at all stages of the product life cycle, striving for products with the lowest possible environmental impact.
Value as goal	High-level human values as goals, like United Nation Sustainability Development Goals (UN SDGs) or subsets.
Value as outcome	The positive and negative impacts of the technology to the values as goals. Possibly positive and negative from the use of the technology and negative from its deployment. That is, values directly and indirectly impacted by the deployment and use of the technology.
Key Value (KV)	Significant/important positive or negative outcomes and impacts of a Use Case.
Key Value Indicator (KVI)	Forward-looking qualitatively or quantitatively measurable indicators for the KVs to align outcome and impact against objectives. Specifically, Use Case KVIs are used to assess the impact of a Use Case outcome, while technology enabler KVIs are used to assess the impact of the technology applied to a Use Case to deliver the outcomes, on the KVs of the Use Case.
KVI target value	Estimates / targets regarding the changes envisioned as an outcome of the UC execution (positive or negative, as a limit). KVIs should have a baseline value reflecting the status quo.
Validation	The process to check whether a certain design is appropriate for the purpose and meets the requirements and constrains. The outcome of validation is the assurance that a product, service, or system meets the needs of the customer and other identified stakeholders. Validation is linked to requirements specification. It answers the question “Are we building the right system?”
Evaluation	Evaluation is the process of computing quantitative information or assembling qualitative assertions of characteristics of a certain design and is linked to KPIs or KVIs.
Impact	Impact refers to the effect activities have on sustainability values. Here, a direct impact means that the provisioning of a service is studied, while an indirect impact means that the usage of a service is studied. Both direct and indirect impact can be either positive or negative.
Handprint	Handprint refers to the indirect or induced environmental / societal / economic impacts (positive or negative) that organisations can achieve by offering products / services. This project’s intent is to increase positive and minimise negative impacts. In 6G technology context, induced positive impacts may lead to efficiency gains, waste minimisation, contributions to accessibility, digital empowerment, inclusiveness; negative impacts could include increased resource demand.
Footprint	Footprint is a direct negative impact on environmental, societal, and economic sustainability values. In specific 6G context, footprint refers to negative environmental and resource impact of technology during all life cycle stages (raw material acquisition, production, use and end of life treatment., e.g., through to energy consumption, material use, or Greenhouse Gas (GHG) emissions).