Question 1

Data model uses graphics to illustrate relationships among data elements.

A data model visually represents the relationships among various data elements, often using diagrams such as entity-relationship diagrams, which help in understanding how data is interconnected.

A) Integration

Integration refers to the process of combining different systems and software applications to work together. While it may involve data, it does not specifically use graphics to illustrate relationships among data elements, making it an incorrect choice.

B) Relational database model

The relational database model organizes data into tables that can be linked through relationships. Although it involves relationships, it is primarily a logical structure rather than a graphical representation, which makes this option incorrect.

C) Structured query language

Structured Query Language (SQL) is a programming language used for managing and manipulating relational databases. While it is essential for working with data, it does not use graphics to illustrate relationships, thus rendering this option incorrect.

D) Data model

A data model is designed to visually represent the relationships among data elements, often employing graphical tools like diagrams to clarify these connections. This makes it the correct choice as it explicitly fulfills the requirement of using graphics for illustration.

Conclusion

The data model is the only option that specifically employs graphics to depict the relationships among data elements, thereby making it the correct answer. Other options, such as integration, relational database model, and SQL, fail to meet this criterion as they focus on different aspects of data management without the graphical representation component.