defect prevention software

7/28/2019 Defect Prevention Software

1/8

DEFECT PREVENTION SOFTWARE

Tools for static analysis of source code: PMD Marker,

FindBugs, Metrics Marker

Tools for determining software quality metrics for source

code: VizzMaintenance

Tools for UML design critics: ArgoUML

Tools for generating test cases from UML model of your code:

Smartesting

See static analysis report sample and software quality metrics

for sample class on following pages


2/8

Here is sample CommaHyphenString.java source code

1 /**

2 *

3 * CommaHyphenString parses .properties file. It eliminates commas or low lines

4 * from .properties file so items in it( such as categories) could be properly

5 * showed on screen

6 */7 import java.util.*;

8

9 publicclass CommaHyphenString {

10

11 //String s;

12 int lastIndex;

13 CommaHyphenString(){}

14

15

16 /** Eliminates commas, returns array of strings with low line17 * @return String[]

18 */

19 String[] getWithLowLine(String s) {

20 int lastIndex = defineLast(s);

21 if(lastIndex==0){

22 String[] ss = newString[1];

23 ss[0] = s;

24 return ss;

25 } else {

26 int start = -1;

27 Vector v = newVector();28 int current = s.indexOf(',');

29 do {

30 v.addElement(s.substring(start+1,current));

31 start = current;

32 current = s.indexOf(',',current+1);

33 } while (start!=lastIndex);

34

35 String[] ss = newString[v.size()+1];

36 for(int i=0; i


3/8

39 ss[v.size()] = s.substring(lastIndex+1,s.length());

40 return ss;

41 }

42 }

43

44 /** Eliminates low line

45 * @return String[]

46 */47 String[] getStringsOnly(String s){

48 String[] temp = this.getWithLowLine(s);

49 for (int i=0; i


4/8

79 publicintdefineLast(String s){

80 int lastIndex = 0;

81 char c[] = s.toCharArray();

82 for (int i=0; i


5/8

Parameter 's' is not assigned and could be declared final 47 PMD Marker

Use explicit scoping instead of the default package private level 47 PMD Marker

Avoid using if statements without curly braces 53 PMD Marker

CommaHyphenString.getStringsOnly(String) concatenates strings using + in a loop 54 FindBugs

Prefer StringBuffer over += for concatenating strings 54 PMD Marker


Use explicit scoping instead of the default package private level 65 PMD Marker

Parameter 's' is not assigned and could be declared final 72 PMD MarkerUse explicit scoping instead of the default package private level 72 PMD Marker


Local variable 'c' could be declared final 81 PMD Marker

Avoid using if statements without curly braces 83 PMD Marker

Here are VizzMaintenance software quality metrics for CommaHyphenString.java class

Class Name Maintainability CBO CYC_Classes DAC DIT ILCOM LCOM LD LEN LOC LOD_Class MPC NAM NOC NOM

CommaHyphenString 0,136637872 0 1 0 0 0 25 0 17 80 0,167 0 6 0 5


6/8

Here are full names of VizzMaintenance software quality metrics (click on links for details)

Complexity

o Size

Lines of Code (LOC)

o Interface Complexity

Number of Attributes and Methods (SIZE2)

Number Of local Methods (NOM)

o Structural Complexity

McCabe Cyclomatic Complexity (CC)

Weighted Method Count (WMC)

Response For a Class (RFC)

Architecture and Structure

o Inheritance

Depth of Inheritance Tree (DIT)

Number Of Children (NOC)

o Coupling

o Afferent Coupling (Ca)
http://www.arisa.se/compendium/node89.htmlhttp://www.arisa.se/compendium/node89.htmlhttp://www.arisa.se/compendium/node90.htmlhttp://www.arisa.se/compendium/node90.htmlhttp://www.arisa.se/compendium/node91.htmlhttp://www.arisa.se/compendium/node91.htmlhttp://www.arisa.se/compendium/node92.htmlhttp://www.arisa.se/compendium/node92.htmlhttp://www.arisa.se/compendium/node93.htmlhttp://www.arisa.se/compendium/node93.htmlhttp://www.arisa.se/compendium/node94.htmlhttp://www.arisa.se/compendium/node94.htmlhttp://www.arisa.se/compendium/node95.htmlhttp://www.arisa.se/compendium/node95.htmlhttp://www.arisa.se/compendium/node96.htmlhttp://www.arisa.se/compendium/node96.htmlhttp://www.arisa.se/compendium/node97.htmlhttp://www.arisa.se/compendium/node97.htmlhttp://www.arisa.se/compendium/node98.htmlhttp://www.arisa.se/compendium/node98.htmlhttp://www.arisa.se/compendium/node99.htmlhttp://www.arisa.se/compendium/node99.htmlhttp://www.arisa.se/compendium/node100.htmlhttp://www.arisa.se/compendium/node100.htmlhttp://www.arisa.se/compendium/node101.htmlhttp://www.arisa.se/compendium/node101.htmlhttp://www.arisa.se/compendium/node102.htmlhttp://www.arisa.se/compendium/node102.htmlhttp://www.arisa.se/compendium/node103.htmlhttp://www.arisa.se/compendium/node103.htmlhttp://www.arisa.se/compendium/node104.htmlhttp://www.arisa.se/compendium/node104.htmlhttp://www.arisa.se/compendium/node104.htmlhttp://www.arisa.se/compendium/node103.htmlhttp://www.arisa.se/compendium/node102.htmlhttp://www.arisa.se/compendium/node101.htmlhttp://www.arisa.se/compendium/node100.htmlhttp://www.arisa.se/compendium/node99.htmlhttp://www.arisa.se/compendium/node98.htmlhttp://www.arisa.se/compendium/node97.htmlhttp://www.arisa.se/compendium/node96.htmlhttp://www.arisa.se/compendium/node95.htmlhttp://www.arisa.se/compendium/node94.htmlhttp://www.arisa.se/compendium/node93.htmlhttp://www.arisa.se/compendium/node92.htmlhttp://www.arisa.se/compendium/node91.htmlhttp://www.arisa.se/compendium/node90.htmlhttp://www.arisa.se/compendium/node89.html


7/8

Coupling Between Objects (CBO)

Change Dependency Between Classes (CDBC)

Change Dependency Of Classes (CDOC)

Efferent Coupling (Ce)

Coupling Factor (CF)

Data Abstraction Coupling (DAC)

Instability (I)

Locality of Data (LD)

Message Passing Coupling (MPC)

Package Data Abstraction Coupling (PDAC)

o Cohesion

Lack of Cohesion in Methods (LCOM)

Improvement of LCOM (ILCOM)

Tight Class Cohesion (TCC)

Design Guidelines and Code Conventions

o Documentation

Lack Of Documentation (LOD)

o Code Conventions
http://www.arisa.se/compendium/node105.htmlhttp://www.arisa.se/compendium/node105.htmlhttp://www.arisa.se/compendium/node106.htmlhttp://www.arisa.se/compendium/node106.htmlhttp://www.arisa.se/compendium/node107.htmlhttp://www.arisa.se/compendium/node107.htmlhttp://www.arisa.se/compendium/node108.htmlhttp://www.arisa.se/compendium/node108.htmlhttp://www.arisa.se/compendium/node109.htmlhttp://www.arisa.se/compendium/node109.htmlhttp://www.arisa.se/compendium/node110.htmlhttp://www.arisa.se/compendium/node110.htmlhttp://www.arisa.se/compendium/node111.htmlhttp://www.arisa.se/compendium/node111.htmlhttp://www.arisa.se/compendium/node112.htmlhttp://www.arisa.se/compendium/node112.htmlhttp://www.arisa.se/compendium/node113.htmlhttp://www.arisa.se/compendium/node113.htmlhttp://www.arisa.se/compendium/node114.htmlhttp://www.arisa.se/compendium/node114.htmlhttp://www.arisa.se/compendium/node115.htmlhttp://www.arisa.se/compendium/node115.htmlhttp://www.arisa.se/compendium/node116.htmlhttp://www.arisa.se/compendium/node116.htmlhttp://www.arisa.se/compendium/node117.htmlhttp://www.arisa.se/compendium/node117.htmlhttp://www.arisa.se/compendium/node118.htmlhttp://www.arisa.se/compendium/node118.htmlhttp://www.arisa.se/compendium/node119.htmlhttp://www.arisa.se/compendium/node119.htmlhttp://www.arisa.se/compendium/node120.htmlhttp://www.arisa.se/compendium/node120.htmlhttp://www.arisa.se/compendium/node121.htmlhttp://www.arisa.se/compendium/node121.htmlhttp://www.arisa.se/compendium/node122.htmlhttp://www.arisa.se/compendium/node122.htmlhttp://www.arisa.se/compendium/node122.htmlhttp://www.arisa.se/compendium/node121.htmlhttp://www.arisa.se/compendium/node120.htmlhttp://www.arisa.se/compendium/node119.htmlhttp://www.arisa.se/compendium/node118.htmlhttp://www.arisa.se/compendium/node117.htmlhttp://www.arisa.se/compendium/node116.htmlhttp://www.arisa.se/compendium/node115.htmlhttp://www.arisa.se/compendium/node114.htmlhttp://www.arisa.se/compendium/node113.htmlhttp://www.arisa.se/compendium/node112.htmlhttp://www.arisa.se/compendium/node111.htmlhttp://www.arisa.se/compendium/node110.htmlhttp://www.arisa.se/compendium/node109.htmlhttp://www.arisa.se/compendium/node108.htmlhttp://www.arisa.se/compendium/node107.htmlhttp://www.arisa.se/compendium/node106.htmlhttp://www.arisa.se/compendium/node105.html


8/8

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