Cause of high cyclomatic complexity software

Cyclomatic complexity is a source code complexity measurement that is being correlated to a number of coding errors. Cyclomatic complexity is a popular procedural software metric equal to the number of decisions that can be taken in a procedure. Mccabes cyclomatic complexity metric 1976 is widely cited as a useful predictor of various software attributes such as reliability and development effort. Critical software functions with high cyclomatic complexity are one type of spaghetti code that should be avoided. A program with high cyclometic complexity is almost likely to be. Im analyzing a solution, and im trying to make a determination of the quality of the code. Mccabes cyclomatic complexity and why we dont use it. Cyclomatic complexity is a measure of the number of paths through a particular piece of code a higher number means the software is more complex. It is a quantitative measure of the number of linearly independent paths through a programs source code. In nearly every audience we present our analysis and quality management tools to, there is at least one person asking whether we also measure cyclomatic complexity. It is calculated by developing a control flow graph of the code that measures the number of linearlyindependent paths through a program module.

Efficient development of high performance data analytics in python. It also makes us aware that any high levels of complexity will cause us. Cyclomatic complexity ko kaise calculate krty h iss video m btaya gya hai. I have no explanation for the value 5, which seems to be too high. After all, almost every existing software quality tool calculates this. Cyclomatic complexity is a software metric used to indicate the complexity of a program.

Generally, i think of it as being a measure of how many conditional branches there are. Cyclomatic complexity is a software metric that measures the logical complexity of the program code. Cyclomatic complexity calculation examples gate vidyalay. For example the cyclomatic complexity of the following java method is 3. After all, almost every existing software quality tool calculates this metric and so it is very well known. The result is metrics that frequently are poorly formulated, inappropriate to the specific. A lot of programmers bandy about the term cyclomatic complexity. Cyclomatic complexity is a measure of how complex a piece of software is, based on the number of paths through the program. Cyclomatic complexity is a popular procedural software metric equal to the. Software testing exam from international software testing qualifications board istqb. This metric although widely cited has many limitations. Certainly cyclomatic complexity isnt the only measurement, but it can help.

What does a mccabe cyclomatic complexity too high error. It is a quantitative measure of independent paths in the source code of the program. Cyclomatic complexity is a software metric, used to indicate the. Critical software functions with high cyclomatic complexity are one. Furthermore, it would appear that for a large class of software it is no more than a.

For years now, ive gone with the assumption that 10 was the limit. Pdf a critique of cyclomatic complexity as a software metric. An application with few lines of code and a high number of conditionals nested within loops could have an extremely high cyclomatic complexity. Independent path is defined as a path that has at least one edge which has not been traversed before in any other paths.

The cyclomatic complexity of the program is 3 as the strongly. Theres a more complete write up at cyclomatic complexity. What does the cyclomatic complexity of my code mean. Avoid high cyclomatic complexity better embedded system sw.