Based on the ArchiMate 3 documents or objectives, an application component represents a modular, deployable, and replaceable part of a software system that encapsulates its behavior and data. An application service represents an explicitly defined exposed application behavior. A data object represents data structured for automated processing. A realization relationship indicates that an entity plays a critical role in the creation, achievement, sustenance, or operation of a more abstract entity. An access relationship models the ability of behavior and active structure elements to observe or act upon passive structure elements. The diagram uses a realization relationship from the MEDINFO application component to the Medical Information service to indicate that the application component realizes the service. The diagram also uses an access relationship from the MEDINFO application component to the MEDBASE data object to indicate that the application component accesses the data object.
References: ArchiMate 3.2 Specification, Chapter 10 Application Layer, Section 10.1 Active Structure Elements 1; ArchiMate 3.2 Specification, Chapter 10 Application Layer, Section 10.3 Behavior Elements 1; ArchiMate 3.2 Specification, Chapter 5 Relationships, Section 5.1 Structural Relationships 1; ArchiMate
3.2 Specification, Chapter 5 Relationships, Section 5.3 Access Relationships 1; ArchiMate Example:
Application Components - Visual Paradigm 2.