Can a software application be tested if it doesn’t have any requirements? Theoretically, this isn’t possible. As solutions to distinct problems, all apps inherently have requirements. Nonetheless, instances will arise when there’s an inadequate, outdated, or completely absent requirements documentation.
When testers encounter these situations, the main problem they face is performing tests with insufficient requirements. This guide will discuss techniques to handle such predicaments.
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The best foundation for conducting tests is usually a well-documented functional/system requirement file, complete with detailed use cases and mock-up screens. Nonetheless, swift development cycles and a trend towards minimal documentation have made this a rather scarce occurrence in the sector.
However, when confronted with inadequate documentation, software testers can implement the following three strategies:
An overview of the top 3 strategies for testing apps without requirements:
Strategy #1:
Make use of any available documentation, no matter how scant. This could involve a basic backlog, email, previous test cases stored in ALM instruments, an outdated version of the documentation, or a help file. Strive to unearth as much data as possible.
If no documents exist, draw on your familiarity with software. For instance, when testing a bank transfer operation, you already understand the expected outcome given your exposure to online banking. While not all cases will be as self-explanatory, some may be.
Strategy #2:
Refer to an older or existing application when testing an upcoming version. This approach contradicts the principle of not using the app itself as a basis. However, in sub-optimal circumstances, it’s necessary to bend the rules. When applying this strategy, beware of existing software bugs and scrutinize its functionality to ensure precise testing.
Strategy #3:
Engage project team members to obtain the necessary information:
- Propose attending their meetings.
- Ask to take part in unit and integration testing stages.
- Request the developer team’s unit and integration test outcomes if you can’t participate.
- Schedule knowledge transfer sessions for a suitable time.
Let’s illustrate these strategies with an example:
Imagine an ecommerce site that lacks documentation on adding items to the shopping cart or how the cart should function. In such instances, apply the strategies described above to collect data and develop test cases. Make assumptions based on your knowledge of typical shopping cart operations and construct related scenarios.
By implementing these strategies, testers can perform their duties with confidence, even when documentation is insufficient or completely absent.
About the author: This article is penned by Swati S., a member of the STH team.
We always welcome your comments, inquiries, and suggestions. Please share your experiences with similar situations!