- Who determines the meaning and definition of data
- How should input rules be standardized?
- How do we ensure data quality?
are, in essence, operational issues, business issues and management issues.
The latest Digital Skills Standard ver. 2.0, published by the Ministry of Economy, Trade and Industry in April 2026, defines the following three roles within the data management category:
- Data steward: Based on business domain knowledge, this role is responsible for operations aimed at ensuring data quality, reliability and security, as well as for promoting the adoption and establishment of data management within business divisions and frontline organizations, and for fostering data utilization. In short, they are the data quality manager and data utilization promoter.
- Data engineer: This role involves understanding the current state of data and supporting the organization’s continuous data utilization through data preparation and preprocessing in processes such as collection, integration, processing and provision, as well as the design and implementation of data pipelines. In essence, they are the implementers and operators who drive data.
- Data architect: This role involves taking a bird’s-eye view of the data structure, flow and utilization methods across the entire organization and business. By designing and continuously reviewing data architecture that encompasses the entire data lifecycle in alignment with business strategy, they ensure the successful integration of company-wide data utilization and governance—essentially serving as the overall designer of data.
The CIO is not merely responsible for establishing data storage and analysis infrastructure; they are also tasked with appropriately assigning personnel to these three roles within the company and establishing cross-departmental, company-wide tools and rules to connect data with management, business operations and daily tasks.