Sonar

OO Design Quality Metrics as specified by Robert C. Martin

Details

  • Type: New Feature New Feature
  • Status: Open Open
  • Priority: Major Major
  • Resolution: Unresolved
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: Squid
  • Labels:
    None
  • Number of attachments :
    1

Description

Robert Martin has written a paper specifying what could be good OO design quality metrics.

Implementation of JDepend is based on this paper but a visual representation could be higly more usefull to undertand and interpret metrics. Read the end of Robert's paper to understand how true is it or take a look to the attached image :

  • Each circle represents a java package
  • Circle can have three different colors : green (D is near 0), yellow (D is around 0,2), red (D is around 0,5)
  • Size of circle is proportional to its package size

The mean of "Distance" metrics could be a good way to compare projects. Projects with a Distance near than 0 are better than projects with a greater Distance (Could be used as a new metric to colorize the treemap).

Issue Links

depends upon

New Feature - A new feature of the product, which has yet to be developed. SONAR-47 Add measures at package level

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.
is related to

New Feature - A new feature of the product, which has yet to be developed. SONARPLUGINS-415 Compute ADI (Abstract, Distance, Instability) metrics from Robert C. Martin

  • Major - Major loss of function.
  • Open - The issue is open and ready for the assignee to start work on it.

New Feature - A new feature of the product, which has yet to be developed. SONAR-137 Calculate Chidamber and Kemerer Metrics

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.
relates to

New Feature - A new feature of the product, which has yet to be developed. SONAR-501 New "Components DSM" service

  • Critical - Crashes, loss of data, severe memory leak.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

Ascending order - Click to sort in descending order
Hide
Permalink
Freddy Mallet added a comment -

The following pages give very good definitions of OO metrics

Show
Freddy Mallet added a comment - The following pages give very good definitions of OO metrics
Hide
Permalink
Emilio Escobar Reyero added a comment -

Hi all, Isotrol MetricsAnalytics plugin (http://docs.codehaus.org/display/SONAR/Isotrol+MetricsAnalytics) integrates JDepend now. What does we have to do in order to solve this issue (SONAR-94)?

Emilio Escobar
Nicolas Bertet

Show
Emilio Escobar Reyero added a comment - Hi all, Isotrol MetricsAnalytics plugin ( http://docs.codehaus.org/display/SONAR/Isotrol+MetricsAnalytics ) integrates JDepend now. What does we have to do in order to solve this issue ( SONAR-94 )? Emilio Escobar Nicolas Bertet
Hide
Permalink
Simon Brandhof added a comment -

Removed from Sonar 2.0, afferent couplings do not include calls from external dependencies, so the metric instability is not exact. JDepend has the same limitation.

Show
Simon Brandhof added a comment - Removed from Sonar 2.0, afferent couplings do not include calls from external dependencies, so the metric instability is not exact. JDepend has the same limitation.
Hide
Permalink
Freddy Mallet added a comment -

See the following thread of discussions of understand why this ticket hasn't been fixed : http://markmail.org/message/jmxluicsvu4xhhka

Show
Freddy Mallet added a comment - See the following thread of discussions of understand why this ticket hasn't been fixed : http://markmail.org/message/jmxluicsvu4xhhka

People

  • Assignee:
    Unassigned
    Reporter:
    Freddy Mallet
Vote (23)
Watch (14)

Dates

  • Created:
    Updated: