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What are OO metrics?

What are OO metrics?

Object-oriented software engineering metrics are units of measurement that are used to characterize: object-oriented software engineering products, e.g., designs source code, and the test cases. object-oriented software engineering processes, e.g., designing and coding.

What are the metrics for object-oriented projects?

The metrics include: (1) Weighted Methods per Class (WMC), count the methods, (2) Depth of Inheritance Tree (DIT), count the levels, (3) Number of Children (NOC), count the derived classes, (4) Coupling Between objects (CBO), count non-inheritance connections, (5) Response For a Class (RFC), count all methods used by a …

Which of the following is are metrics for OO design?

These are Efficiency, Complexity, Understandability, Reusability, and Testability/Maintainability. The SATC has proposed nine metrics for object-oriented systems. They cover the key concepts for object-oriented designs: methods, classes (cohesion), coupling, and inheritance.

What are the three software complexity metrics?

This paper describes an experimental investigation, which compares the performance of three different software complexity metrics; McCabe’s cyclomatic complexity, Halstead’s complexity measures and Douce’s spatial complexity, by using data from an Open Source project Eclipse JDT.

What is measurable characteristics of an OO design?

In a detailed treatment of software metrics for OO systems, Whitmire describes nine distinct and measurable characteristics of an OO design: Size. Size is defined in terms of four views: population, volume, length, and functionality.

What is object-oriented testing?

Object-Oriented testing is a software testing process that is conducted to test the software using object-oriented paradigms like, encapsulation, inheritance, polymorphism, etc. The software typically undergoes many levels of testing, from unit testing to system or acceptance testing.

What are CK metrics?

The CK metrics can be used to measure some characteristics of OO systems such as classes, message passing, inheritance, and encapsulation. On the other hand, the software maintenance phase requires that changes are made to the existing system.

How many categories does object-oriented metrics have?

six metrics
The suite comprises six metrics: Weighted Methods per Class (WMC), Coupling Between Objects (CBO), Depth of Inheritance Tree (DIT), Number of Children (NOC), Response For a Class (RFC), and Lack of Cohesion in Methods (LCOM).

What are testing metrics?

Software Testing Metrics is defined as a quantitative measure that helps to estimate the progress and quality of a software testing process. A metric is defined as the degree to which a system or its component possesses a specific attribute.

What is logic complexity?

As stated in Chapter 6, logical complexity is defined as the ratio of the length of the logical evolution to the temporal evolution length and is intended to identify the level of logical ‘activity’ in an evolution.

What are the characteristics of object oriented software engineering?

Object-oriented methodology is a way of viewing software components and their relationships. Object-oriented methodology relies on three characteristics that define object-oriented languages: encapsulation, polymorphism, and inheritance.

What is OO integration testing?

Integration testing is the testing performed to catch any errors when two or more individually developed components are aggregated to execute their functionalities.

What is the difference between OO testing and conventional software testing?

Conventional testing is the traditional approach to testing mostly done when water fall life cycle is used for development, while object oriented testing is used when object oriented analysis and design is used for developing enterprise software.

What are the six design measurements of CK metrics in OO?

The suite comprises six metrics: Weighted Methods per Class (WMC), Coupling Between Objects (CBO), Depth of Inheritance Tree (DIT), Number of Children (NOC), Response For a Class (RFC), and Lack of Cohesion in Methods (LCOM).

How is LCOM calculated?

For each field in the class, you count the methods that reference it, and then you add all of those up across all fields. You then divide that by the count of methods times the count of fields, and you subtract the result from one. So, for instance, consider the classes above. NumberManipulator = 1 – (3/4) = 0.25 LCOM.

What is the importance of OO metrics?

These metrics can be used to reinforce good OO programming technique which lead to more reliable code. Object-oriented software engineering metrics are units of measurement that are used to characterize: object-oriented software engineering products, e.g., designs source code, and the test cases.

What are object oriented metrics in software engineering?

Object Oriented Metrices in Software Engineering. These are used to determine success or failure of a person also to quantify the improvements in the software throughout its process. These metrics can be used to reinforce good OO programming technique which lead to more reliable code. Object-oriented software engineering metrics are units

What are the product metrics?

Product Metrics: These are the measures of various characteristics of the software product. The two important software characteristics are: Size and complexity of software. Quality and reliability of software.

What are terms used to describe software metrics?

Terms used to describe software metrics often have multiple definitions and ways to count or measure characteristics. For example, lines of code (LOC) is a common measure of software development.