This document defines a common methodology aligned with the goals of the HVDC-WISE project to be applied to the use cases, thereby providing resilience and reliability-oriented HVDC-based reinforcement. It serves as the first version of Deliverable 6.1 within Work Package 6 (WP6). The associated task in this work package, Task 6.1, primarily focuses on:

•The practical methodology's overall framework is described, outlining the required inputs from other work packages (WPs) and expected outputs.
•An overview of the use cases, as per WP2, is provided, accompanied by a methodology that includes the grid topology and specifications, along with HVDC architectures for further study in the use cases.
•The R&R-oriented planning toolsets developed in WP5 are explained in the context of applying the methodology to the use cases. This involves assessing the grid using different indices, including techno-economic/adequacy indices, as well as reliability and resilience indices.
•The design of the methodology involves defining key indicators, practical assumptions, operational scenarios, and types of disturbances tailored to each use case's characteristics.

The final version of the deliverable, incorporating updates and improvements to the practical methodology for the use cases, will be submitted in June 2024.