measurement & analysis - performing project measurement using sonar
DESCRIPTION
I made these Presentation briefly exposing sonar (http://sonar.codehaus.com), its capabilites and TQ measurement in a school proyect.TRANSCRIPT
Measurement & Analysis - Performing Project
Measurement using Sonar
Diaz -Bilotto, NicolásMorales , Mauricio
Schedule
• Brief Introduction to Mesaurement and Analysis• Information needs• Measurement infromation model • Measurement construct• Performing Measuerement• Sonar :
o Concept & Architecture o Using Sonar in our processo Results
• Bibliography
Brief Introduction to Mesaurement and Analysis
• Measurement & Analysis (M&A) process area develops and sustain measurement capabilities that suports management information needs [1]
• Top-performing organizations has a cultural bias towards informed decision making [2]
• Decision making is more effective when accurate and actual information is available
• Actually, information-need driven measurement process are better suited for software-intensive projects
Information needs
• Information needs are the key foundation in M&A process area • They are related directly to established objectives inside the
organization• Information needs are defined using PSM Measurement Information
Model; It provides a formal mechanism for linking information needs to software processes and products that can be measured [1].
• Information needs helps Measurement Analysts in a correct identification of Measurement Concepts, and these Measurements Concepts assists the creation of Measurement Constructs.
• Our information need is : "Evaluate programming labour quality."
Measurement Information Model.
Measurement Construct
• Indicator : Total Quality (TQ).• Measurement concept : Product Quality. • Relevant Entities :
o Source code from every U3d branch and trunk.• Measure Method :
o Obtain the last revision from SVN.o Measure TQ using Sonar.
• Type of Method :Objective.• Scale : Value in [ 0.0 ... 1.0 ]• Type of Scale : Ratio.• Unit of measurement : Dimensionless Quantity.• Decision Criteria : TQ >= 75%• Analysis Model :
o Compute the weighted sum of ...
Measurement Construct (Cont.)
• Base measurementso Chidamber and Kemerer
Java Metrics (design) DIT : Depth of Inheritance
Treeo JDepend Metrics
(architecture) CA : Afferent Couplings
• Derived measurementso DRYness : inverse of
Duplicated lines density.o COVERAGE : code
coverage, from sonar.• Indicator : Total Quality.
Sonar
• Sonar is a system that performs automated measurement for maven-based projects.
• "Sonar enables to you to collect, analyze and report metrics on source code." [3]
• It's hosted for Codehaus (codehaus.org).
• It's open source.• Provides a simple interface
to measurement results.
Sonar : Concept & Architecture
• Sonar architectrue is based in these componentso A set of maven plugins.o A Webserver.
• The plugins are provided using a custom maven repository hosted in the webserver.
• The webserver provides graphical interface for human access and simple RESTful web API.
Using Sonar in our process
• Sonar helps performing tedious and repetitive tasks in "Perform Measurement" process.
• "Collect data" and "Analyze data" tasks are practically performed using these tool
• Supervision and control is needed, sonar is a tool.
Results : TQ indicator - Saturday 3
Branch Result
trunk 68.2 %
calamares Compilation error
hipocampo 66.1%
tiburones 66.2%
delfines 68.2%
Bibliography
1. Practical Software Measurement: Objective Information for Decision Makers (9780201715163): John McGarry, David Card, Cheryl Jones, Beth Layman,Elizabeth Clark,Joseph Dean, Fred Hall.
2. CMMI product team, CMMI for Development (CMMI-DEV), Version 1.2 (http://www.sei.cmu.edu/library/abstracts/reports/06tr008.cfm)
3. Sonar homepage (http://sonar.codehaus.org)