CTK supports the common use of medical imaging software developments on different levels (not all of these levels are available yet). This ranges from loosely coupled applications (level 1: basically data exchange) to more and more tight integration (level 2: parameter exchange; level 3: exchange of events; level 4: exchange of services; level 5: complete integration).

{|border=”0” cellspacing=”0” cellpadding=”4” ! ! CTK benefit for Host ! CTK benefit for App/Module |- style=”background-color:#EEEEEE;” | Level 1: DICOM Part 19 (Scenarios, Details) |

• 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 (Scenarios, Details) |
• parsing of parameter descriptions
• GUI generation (optional) |
• publishing of parameter descriptions |- style=”background-color:#EEEEEE;” | Level 3: CTK event bus (Scenarios, Details)

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• publish and subscribe for arbitrary communication between modules and applications
• possibly out of process |- | Level 4: CTK services (Scenarios, Details) |colspan=”2”|
• Component-based software development
• Service discovery
• Base services: event bus, configuration admin, logging, meta type management |- style=”background-color:#EEEEEE;” | Level 5: Classic C++ (Scenarios) |colspan=”2”|
• DICOM Q/R (ctkDICOMAppWidget, ctkDICOMServerNodeWidget)
• Local DICOM file management (indexer, database ) (ctkDICOMModel)
• DICOM testing infrastructure
• Qt widgets for DICOM, Medical Imaging applications (Image Gallery, Plans)
• Scripting support (ctkPythonShell)
• Application launcher