Supportsoft Glossary

Understanding Data Abstraction in Software Design

The term 'data abstraction' refers to a design principle that abstracts complex information by abstracting away irrelevant pieces of the entire data model so that only the necessary pieces of the model are displayed to the end-user or developer. This allows the end-user or developer to see a simplified representation of the data model, rather than seeing the entire model with all its complexities. By seeing just the necessary representations of the data, developers can build systems that are cleaner, clearer and easier for them to understand, and thus create less cognitive load on developers, fewer opportunities for errors, and ultimately create software systems that are much more easily maintained and extended.

Data abstraction also enhances the security of an application by limiting access to sensitive information. Each layer of the application is responsible for preserving the integrity of the information contained within the internal data structures of the application and therefore eliminates the risk of accidental misuse or unintentional access to sensitive information. Furthermore, data abstraction allows developers to make changes to the internal data structures of the application without disrupting the external interfaces of the application with respect to the data contained in those internal data structures.