CTK Integration Levels Overview

	CTK benefit for Host	CTK benefit for App/Module
Level 1: DICOM Supplement 118	Host communication Data preparation for DataExchange interface Default implementation of host business logic	Application communication Default implementation of application business logic
Level 2: Command line interface	parsing of parameter descriptions GUI generation (optional)	publishing of parameter descriptions
Level 3: CTK event bus	publish and subscribe for arbitrary communication between modules and applications possibly out of process
Level 4: CTK services	Component-based software development Service discovery Base services: event bus, configuration admin, logging, meta type management
Level 5: “Classic” C++	DICOM Q/R Local DICOM file management (indexer, database …) DICOM testing infrastructure Qt widgets for DICOM, Medical Imaging applications … Scripting support Application launcher