Well executed metadata management enables:
Answer(s): A
Well-executed metadata management ensures that data resources are consistently understood across an organization. It provides a clear, unified view of what the data represents, how it is structured, and where it resides. This consistency helps improve data quality, accessibility, and decision-making by ensuring that all stakeholders have the same understanding of the data.
One advantage of a continuous improvement over a maturity approach in data quality is:
Answer(s): B
A continuous improvement approach focuses on incremental, ongoing improvements driven by specific business needs or micro-business cases. This allows organizations to adapt quickly and make changes as issues arise, rather than adhering to a rigid, overarching maturity model. In contrast, a maturity approach is more structured and standardized, focusing on achieving predefined stages or levels of capability.
A pensioner who usually receives a quarterly bill of around $300 was sent a $100,000,000 electricity bill. They were a victim of poor data quality checks in which dimension?
Answer(s): C
The issue here lies in the reasonableness dimension of data quality. A $100,000,000 bill is clearly unreasonable compared to the usual quarterly bill of $300, which indicates that there was a lack of proper checks to ensure the data was within expected, reasonable limits. This type of data quality issue typically occurs when checks for realistic or expected values are not in place.
What is a super key?
Answer(s): D
A super key is any combination of attributes (or columns) that can uniquely identify an entity instance in a database. It may include additional attributes beyond those necessary for uniqueness, which means it is a broader concept compared to a candidate key, which is minimal in terms of the number of attributes required for uniqueness.
In Data Modelling, the generalization of the concept of person and organisation into a party enables:
In data modeling, generalizing the concept of person and organization into a "party" allows for a flexible representation where both individuals and organizations can act in various roles in agreements, share address usages, and interact in common processes. This abstraction simplifies modeling by unifying different types of entities under a single concept, which can then be used in various contexts across the system.
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