Software Metrics in Software Engineering

Here in this Tutorial we will discuss about the Software Metricsin Software Engineering Tutorial. The tutorial is helpful for beginners and experienced professionals.


A software metric is a quantitative or evenly divisible indication of programme properties. Software metrics are useful for a variety of purposes, including assessing software quality, organizing work items, calculating efficiency, and more.

There are many KPIs are associated throughout the software development process. Software metrics are comparable to management’s four components: strategy, organizing, control, and development.

Classification of Software Metrics

Software metrics can be classified into two types as follows:

The following are the two categories of software metrics:

  1. Product Metrics: These are measurements of the software product’s numerous properties. The following are the two most significant software attributes:
    1. Software size and volume.
    2. Software quality and dependability.

    These metrics can be calculated at various levels of the SDLC.

  2. Process Metrics: These are measurements of the software development process’ numerous properties. Consider the effectiveness of defect detection. They are used to evaluate the qualities of software development processes, approaches, and tools.

Types of Metrics

Internal metrics:

Internal metrics are also the metrics which are used to measure properties which are considered more important to a software developer. Lines of Code (LOC) is one example.

External metrics:

External metrics are those which are used to measure features that are considered more important to the user, such as adaptability, durability, functioning, accessibility, and so on.

Hybrid metrics:

Hybrid metrics are metrics that blend commercial, procedure, and resources metrics into one. For instance, consider the cost per FP (function point metric).

Project metrics:

Project metrics are the numbers used to track a project’s progress. For example, the time it took and how much it cost to complete previous projects can be measured and calculated to estimate the time and cost associated with new software development. As time progresses, these estimates will be verified through benchmarks against existing data. The goal of this is always to save money, time and effort while keeping quality standards high.

Advantage of Software Metrics

A comparison of various software system design methodologies.

For the purpose of analyzing, comparing, and evaluating the features of particular programming languages.

  • When analyzing and measuring the talents and effectiveness of software development personnel.
  • When it comes to writing software quality standards.
  • In the assessment of software system standards and specifications compatibility.
  • In estimating the effort that will be invested into the design and implementation of software systems.
  • In order to obtain a sense of the code’s readability.
  • Making decisions about whether or not a difficult component should be further divided.
  • In assisting resource managers with proper asset utilization.
  • Software engineering and construction costs are compared and design choices are made.
  • Through various stages of the software development life cycle, measuring progress to program managers on performance and quality when allocating testing capabilities for code testing.

Disadvantage of Software Metrics

  • Using software metrics is really not simple, and it can be challenging and expensive in some scenarios.
  • Software metrics are verified and justified using historical information whose correctness is difficult to evaluate.
  • These are important for treating software products though not for evaluating technical performance management.
  • Software metrics are frequently defined and calculated based on assumptions that are not predefined and may vary depending on the tools available as well as the workplace environment.
  • The majority of forecasting analytics concentrate on estimations of specific variables that are frequently unknown.


Q1. What are the software metrics in software engineering?

A software metric is a measure of the relevance and performance of software. These metrics are used to plan work items and measure productivity, among other things.

Q2. How many types of software metrics are there?

There are three categories of metrics: product metrics, process metrics, and project metrics.

Q3. What are the need for software metrics?

Software testing metrics help measure progress, the health of software testing efforts, and quality. Without metrics, it would be near impossible to measure those things.

Q4. What are metrics in data?

A metric is a number that is used to measure data in relation to the inputted data. Your data may be just a number, but your metric might be minutes or hours.

Q5. What is the difference between software measurement and metrics?

Measurements and Metrics:

A measurement is a unit of an attribute, like the number of errors in a system. A metric is a type of measurement that determines how much any given attribute belongs to a system, product or process.

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