EclipseMetricsScales

Scales allow us to normalise the various metrics' values to a 1-5 scale. This improves the meaningfulness of results: instead of simply throwing out numbers, we propose a normalised view that always holds the same information (e.g. the project is small, typical, large, huge).

If unspecified, the values are for the application level.

Communication metrics

COM_DEV_VOL_1M COM_USR_VOL_1M

• x > 5000 More than 5000 mails on the mailing list: the project is bursting with activity.
• 1000 < x < 5000 The mailing list is considered high-activity.
• 500 < x < 1000 The mailing list is considered medium-activity.
• 50 < x < 500 The mailing list is considered low-activity.
• 0 < x < 50 Less than 50 mails on the mailing list: the project is considered inactive.

COM_DEV_AUTH_1M COM_USR_AUTH_1M

• x > 100
• 50 < x < 100
• 10 < x < 50
• 4 < x < 10
• 0 < x < 4

COM_DEV_SUBJ_1M COM_USR_SUBJ_1M

• x > 1000
• 500 < x < 1000
• 100 < x < 500
• 40 < x < 100
• 0 < x < 40

SCM metrics

SCM_COMMITS_1M

• x > 1000
• 500 < x < 1000
• 100 < x < 500
• 40 < x < 100
• 0 < x < 40

SCM_FIX_COMMITS_1M

• x > 1000
• 500 < x < 1000
• 100 < x < 500
• 40 < x < 100
• 0 < x < 40

SCM_COMMITTERS_1M

• x > 100
• 50 < x < 100
• 10 < x < 50
• 4 < x < 10
• 0 < x < 4

Code metrics

SLOC

• x > 1000000
• 500000 < x < 1000000
• 50000 < x < 100000
• 5000 < x < 50000
• 0 < x < 5000

VG

• x > 100000
• 50000 < x < 100000
• 5000 < x < 10000
• 500 < x < 5000
• 0 < x < 500