Metric Results

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following document contains the results of a JDepend metric analysis. The various metrics are defined at the bottom of this document.

Summary

[ summary ] [ packages ] [ cycles ] [ explanations ]

PackageTCCCACCaCeAIDV
org.minetti.astrodevice.server.plugin3212333.0%60.000004%7.0%1
org.minetti.astrodevice.server.plugin.device10102100.0%100.0%100.0%1
org.minetti.astrodevice.server.plugin.driver90922100.0%50.0%50.0%1
org.minetti.astrodevice.server.plugin.telescope3210433.0%100.0%33.0%1

Packages

[ summary ] [ packages ] [ cycles ] [ explanations ]

org.minetti.astrodevice.server.plugin

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
2333.0%60.000004%7.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
org.minetti.astrodevice.server.plugin.Plugin
org.minetti.astrodevice.server.plugin.AstroDevicePluginException
org.minetti.astrodevice.server.plugin.DeviceRecognitionStatus
org.minetti.astrodevice.server.plugin.driver
org.minetti.astrodevice.server.plugin.telescope
java.lang
org.minetti.astrodevice.common.device
org.minetti.astrodevice.server.plugin.driver

org.minetti.astrodevice.server.plugin.device

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
02100.0%100.0%100.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
org.minetti.astrodevice.server.plugin.device.BaseDeviceSignature
NoneNonejava.lang
org.minetti.astrodevice.common.device

org.minetti.astrodevice.server.plugin.driver

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
22100.0%50.0%50.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
org.minetti.astrodevice.server.plugin.driver.AltazimuthTelescopeDriver
org.minetti.astrodevice.server.plugin.driver.CameraDriver
org.minetti.astrodevice.server.plugin.driver.DeviceDriver
org.minetti.astrodevice.server.plugin.driver.DomeDriver
org.minetti.astrodevice.server.plugin.driver.EquatorialTelescopeDriver
org.minetti.astrodevice.server.plugin.driver.FilterWheelDriver
org.minetti.astrodevice.server.plugin.driver.FocuserDriver
org.minetti.astrodevice.server.plugin.driver.RotatorDriver
org.minetti.astrodevice.server.plugin.driver.SafetyMonitorDriver
Noneorg.minetti.astrodevice.server.plugin
org.minetti.astrodevice.server.plugin.telescope
java.lang
org.minetti.astrodevice.server.plugin

org.minetti.astrodevice.server.plugin.telescope

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
0433.0%100.0%33.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
org.minetti.astrodevice.server.plugin.telescope.UsbEquatorialTelescope
org.minetti.astrodevice.server.plugin.telescope.EquatorialMotorType
org.minetti.astrodevice.server.plugin.telescope.EquatorialTelescopeInfo
Nonejava.io
java.lang
org.minetti.astrodevice.server.plugin
org.minetti.astrodevice.server.plugin.driver

Cycles

[ summary ] [ packages ] [ cycles ] [ explanations ]

PackagePackage Dependencies
org.minetti.astrodevice.server.pluginorg.minetti.astrodevice.server.plugin.driver
org.minetti.astrodevice.server.plugin
org.minetti.astrodevice.server.plugin.driverorg.minetti.astrodevice.server.plugin
org.minetti.astrodevice.server.plugin.driver
org.minetti.astrodevice.server.plugin.telescopeorg.minetti.astrodevice.server.plugin.driver
org.minetti.astrodevice.server.plugin
org.minetti.astrodevice.server.plugin.driver

Explanation

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following explanations are for quick reference and are lifted directly from the original JDepend documentation.

TermDescription
Number of ClassesThe number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent CouplingsThe number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent CouplingsThe number of other packages that the classes in the package depend upon is an indicator of the package's independence.
AbstractnessThe ratio of the number of abstract classes (and interfaces) in the analyzed package to the total number of classes in the analyzed package. The range for this metric is 0 to 1, with A=0 indicating a completely concrete package and A=1 indicating a completely abstract package.
InstabilityThe ratio of efferent coupling (Ce) to total coupling (Ce / (Ce + Ca)). This metric is an indicator of the package's resilience to change. The range for this metric is 0 to 1, with I=0 indicating a completely stable package and I=1 indicating a completely instable package.
DistanceThe perpendicular distance of a package from the idealized line A + I = 1. This metric is an indicator of the package's balance between abstractness and stability. A package squarely on the main sequence is optimally balanced with respect to its abstractness and stability. Ideal packages are either completely abstract and stable (x=0, y=1) or completely concrete and instable (x=1, y=0). The range for this metric is 0 to 1, with D=0 indicating a package that is coincident with the main sequence and D=1 indicating a package that is as far from the main sequence as possible.
CyclesPackages participating in a package dependency cycle are in a deadly embrace with respect to reusability and their release cycle. Package dependency cycles can be easily identified by reviewing the textual reports of dependency cycles. Once these dependency cycles have been identified with JDepend, they can be broken by employing various object-oriented techniques.