KPIs for Mobile App Testing
In order to validate an application’s performance, the software tester must develop benchmarks that will be used to evaluate the software, also known as key performance indicators (KPIs). While a number of situations are evaluated during software testing mobile applications, the following important metrics are often used to evaluate and assess the application’s performance:
Latency or response time is the time it takes between a consumer submitting a request and the system responding, measured in seconds. For example, if a user makes an in-app purchase and completes it, the response time is the time it takes from when the user first verifies their payment to when their request is submitted and validated, and a verification is sent to their account.
Response time increases when the number of simultaneous users exceeds a specific level, however depending on how bad this is, it may or may not be a concern you want to resolve.
One of the most important metrics to assess is reaction time, as a slower response time results in a terrible user experience, driving them to alternative products. Make sure your app’s response time does not exceed two to three seconds.
Load speed is the time it takes an application to completely start and load on the client user interface in seconds, and it should be recorded under the following criteria:
- Expected Usage – Performance testing must mimic the actual conditions under which the application runs in real time. The load speed should be checked as a baseline for the estimated number of users or application requests.
- Maximum Number of Simultaneous Users – The application’s load speed when the maximum number of concurrent users visit the application at the same time or when the maximum number of requests are reached. It is important to note that concurrent users are not accessing the same information at the same time, but rather separate aspects of the system.
- Critical Situations – Load speed must also be monitored when the application is projected to receive a large number of concurrent requests. Critical condition testing is comparable to stress testing the application, in which the application is forced to its limits.
Make sure your website load speeds are as quick as possible to provide the optimal user experience.
Rendering on Screen
Screen rendering time, also known as page ready time, is the amount of time it takes for the software to load data into the interface and make it useable. This is a frontend metric that begins when a user’s browser first begins downloading information from a server and ends when all components on the webpage can be seen and they become responsive.
For instance, if you load a website with numerous high-resolution photographs, early content such as the banner, title, and text might load quickly. However, once you start navigating, the website may become “stuck,” with the page motion not following your hand motions as pictures, advertising, and videos load.
The time it takes for all items on the screen to be completely interactive is referred to as screen rendering.
Generally , the recommended time range for screen rendering is less than 3 seconds, based on the app’s size.