Software metrics
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Software metrics are quantitative measurements used to highlight areas of code that need improvement and provide an overall assessment of code quality. They can measure aspects like lines of code, complexity, and test coverage. However, metrics can be difficult to calculate precisely and may not provide a full picture, especially for code early in development. Examples of common metrics include lines of code, classes and interfaces, code to comment ratio, and bugs to lines of code.
Software metrics
- 1. Software Metrics Alexandra – Ionela DONOSA An IV, CTI
- 2. What are software metrics? Quantitative measurements distilled from data Distilled by measuring software development processes and actual source code Highlight areas that need work in specific nodes of code as well as generalizations about your code overall "You can't control what you can't measure" -Tom DeMarco
- 3. Limitations of metrics Software metrics are intended to help programmers control and monitor software production, but... It's difficult to determine "how much" software there is in a given program Can give a skewed impression of software, especially when calculated early in the software development process Can be difficult or complex to calculate, especially as the volume of code grows
- 4. Examples of metrics Lines of code Number of classes & interfaces Code to comment ratio Cyclomatic complexity Code coverage Bugs to lines of code ratio Cohesion Coupling Failed tests per build Version control commits per day Lines of code per commit
- 5. Terminology Node A block of source code, usually either a single line, a function/method, class, or package. A node can have multiple children, but only one direct parent Program A graph of all of the nodes that comprise the source code Flow graph A directed graph of all of the single line nodes connected with vertices where the possible flow of execution might proceed
- 6. Some Specifics Lines of Code Code to comment ratio Cyclomatic Complexity Code Coverage Cohesion Coupling Methods for decreasing coupling and increasing cohesion Free tools for auditing software
- 7. Bibliography : 1. https://wiki.engr.illinois.edu/display/cs242sp13/Software+Metrics 2. http://www.projectinitiation.com/