Which aspect of information systems does data integrity focus on?

Data integrity focuses on the accuracy and consistency of stored data. This aspect is crucial because it ensures that the information within a database or information system remains reliable over time. Maintaining data integrity means that the data is not altered in unauthorized ways and remains trustworthy for decision-making processes.

When data integrity is upheld, it reduces the likelihood of data corruption and discrepancies that can lead to poor decisions based on inaccurate information. This aspect covers various techniques and measures used to maintain the correctness of data, such as validation checks and audit trails, that ensure the data remains valid as it is updated or retrieved.

The other options discuss related but distinct concepts. Verification during input is one method to help maintain data integrity, but it is not the sole focus. Speed of data processing is more related to performance rather than accuracy. Formatting and structuring of data storage pertains to how data is organized rather than its integrity. Thus, the emphasis on accuracy and consistency aptly characterizes the concept of data integrity.