A practical path
from here.
Describe the outcome in business language
Start with the questions people need to answer, the decisions they need to make and the constraints your organisation faces. Add source schemas, definitions or architecture documents when available. You can begin the Data Modeller workflow without choosing a modelling pattern yourself.
Create a design with its reasoning
Tiles can help propose a data model, explain the selected approach and prepare supporting model files and an evidence register. Architecture workflows create proposed components, responsibilities, interfaces and transition plans. Qualified reviewers confirm that the design fits the actual environment.
Prepare a controlled migration
Use the relevant migration Tile to document source and target requirements, dependencies and validation. Oracle Exadata to Databricks produces an engineering pack for separately approved tooling. SAS to Snowflake also has a separate runner workflow. Data transfer duration is distinct from creating the plan.