Organizations whose bottom line depends on quality software development need a robust methodology in place to assure bug-free product delivery for their clients. They must integrate a means to monitor the productivity and quality of software testing with a standard set of appropriate software testing metrics.
Depending on what a software testing team wants to track with respect to the software product, various aspects of the product are measured. Software testing metrics also change based on what the team wants to track, control, and improve.
Read on to know all about how software testing metrics serve as reliable standards of measurement for the quality of software products.
What Are Software Testing Metrics?
Software testing metrics are a set of standards of measurement used for measuring and monitoring various aspects of your software testing activities.
The extent, amount, dimension, capacity, team size, attributes, and logged efforts and time are some software test metrics that give an idea about the outcome of the software development test phases. Without these metrics, the work done by the test analyst team, and how they executed various assertions, test cases, and logged defects cannot be tracked and monitored.
Importance Of Software Testing Metrics
With the right set of reliable software testing metrics, ensuring the quality of software products and services can help boost customer satisfaction. There are several specifications, client requirements, and business constraints that software development teams have to contend with when providing software services and delivering software products.
Metrics become all the more useful when there are expectations related to the scale of the client's development projects, curtails in terms of the financials, and limited production cycles. Evaluation of the health, quality, and progress of the software testing endeavor can only be done through industry-recognized software testing metrics.
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A lack of software testing metrics would lead to the inability of the team to quantify, evaluate, or graphically present the quality of the software product. Various areas of improvement driven by the right metrics include:
- Defects can be prevented leading to cost savings
- Overall project planning is improved
- Encourages innovation on better metrics and related methods
- Ensures better health and quality of the software testing efforts
- Improves depth of risk analysis and efficiency of defect removal
Essential Software Testing Metrics
Testing metrics are distinguished based on how the testing team aggregates data, whether formulas are used to derive defect percentages and other related dynamics of test case coverage. So, software testing metrics can be broadly classified into two categories:
Base Metrics: A lot of data is accumulated during the test case development and execution. By creating a project status report, these KPIs are provided to test leads and project managers. With the use of determining measurements, it is quantified. These measurements include:
- Total number of created test cases
- Number of test cases executed
Calculated Metrics: Data from base metrics are used to create calculated metrics. The test lead collects this data and transforms it into more insightful data so that projects may be tracked at the module level, tester level, etc. It is an important component of the SDLC and gives developers the ability to make crucial software upgrades.
Among the two types of software metrics, the following are the top 10 that find implementation for creating test cases around software defects that developers come across most often:
1)Numbered Metrics: Absolute number representations of test efforts are where every software testing measurement strategy starts off. This is where basic numbers such as the number of test cases created, failed, tested, passed, and blocked are noted. When it comes to defects, the number of defects found, accepted, rejected, and deferred are recorded. Other metrics include the number of planned and actual test hours as well as the number of bugs found at various stages.
2)Derivative Metrics: Absolute numbers are usually a good place to start, but they tend to be insufficient on their own. If you report on a specific flaw grid, for instance, this might not be sufficient to determine whether we are on pace for completion or what outcomes we should be examining each day. The absolute figures in this situation raise more questions than they do solutions. We may delve deeper into determining where to address problems in our testing procedures with the use of derivative metrics.
3)Efficiency Metrics: There are a series of derived metrics that help in the tracking and efficiency of software testing metrics. These include passed, failed, and blocked test cases percentages, fixed, accepted, rejected, and deferred defects percentages, and also the critical defects percentages. All these separate values help to determine an ultimate figure which is the average time for the development team to find and repair defects, which is a representation of the test efficiency.
4)Test Effort: These indicators are excellent for setting benchmarks for upcoming test planning. You must keep in mind, though, that these measurements are averages. Half of the readings are above average, and the other half are below.
5)Test Effectiveness: It is a gauge of a test set's quality and capacity to detect bugs. The percentage difference between the number of flaws discovered by the test team and the total number of faults discovered for the software is typically displayed via test effectiveness measures. Test effectiveness provides a representation of how good the tests run were and if they are of high value.
Customer Success Story: Find out how setting up test automation infrastructure helped a US-based web services firm reduce testing time by 85%
6)Test Coverage: Gauging the health of software testing, especially when it comes to continuous testing is the main motive behind setting up metrics and that is exactly what the test metric of test coverage does. It explains how much of the software product or system was tested or the extent of testing. We can understand how many artifacts or components of the application these tests are passing or failing. This guarantees that the products created are of high quality.
7)Economics Metrics: The cost of testing is influenced by personnel, facilities, and equipment. The amount of money available for testing initiatives is limited. As a result, it's critical to understand the difference between your intended expenditure and actual spending. Measures such as actual cost of testing, total allocated costs for testing, budget variance, costs per bug fix, etc. are some important measures for this purpose.
8)Team Metrics: These metrics can be used to determine whether work is distributed equally among test team members and to identify any team members who require further procedure or project knowledge clarifications. These measurements should only ever be used as a teaching tool, never to corner individuals or pass blame.
9)Execution Status: To make it simple to understand the state of the test run, the test execution snapshot chart displays all of the executions in the order of passed, failed, blocked, incomplete, and unexecuted. Because raw figures have a higher likelihood of being forgotten, these charts are excellent visual aids for the daily status meeting.
10)Change Metrics: Software changes frequently, seldom, and infrequently. The stability of the current system must be checked as changes are implemented to determine their effects. Changes typically result in additional flaws, decreased application stability, slipped deadlines, compromised quality, etc.
Software Testing Metrics At The Center Of Development Cycle
Enterprises want quality—at speed and scale—as they turn to software as a source of competitive advantage. They need to reconsider how they create and test apps, doing away with testing as a separate task. The above-mentioned software testing metrics are designed using test automation intelligence and insights-driven strategies to power speed, quality, and productivity.
Daffodil's Software Testing Services contain a wide range of expertise in QA, automation, continuous testing, and DevOps. To begin your journey in high-quality software production, you can set up a free consultation with us today.