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How can you prioritize which aspects of software design to test first?

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How can you prioritize which aspects of software design to test first? This is a common question that software developers face when they want to ensure the quality and functionality of their products. Testing software design is not only about finding bugs and errors, but also about verifying that the design meets the requirements, follows the best practices, and satisfies the users. However, testing everything at once can be time-consuming, costly, and inefficient. Therefore, you need to have a strategy to prioritize which aspects of software design to test first, based on some criteria and factors. In this article, we will explore some of the methods and tools that can help you do that.

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BISHOY YEHYA

Software Engineering Manager at OLX

1 Risk-based testing

One of the most widely used methods to prioritize software design testing is risk-based testing. This method involves identifying and assessing the potential risks that can affect the software design, such as technical complexity, user impact, business value, security, reliability, and performance. Then, you can assign a priority level to each risk, based on its likelihood and impact. The higher the priority, the more attention and resources you should allocate to testing that aspect of software design. Risk-based testing can help you focus on the most critical and vulnerable areas of your software design, and minimize the negative consequences of any failures or defects.

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BISHOY YEHYA

Software Engineering Manager at OLX
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Defining the single points of failure and their priority will help you with implementing a reliable and secure system. For example, if you work on a payment solution, testing the part of calling the external bank API is the highest one. It depends on your use cases and their criticality to the business.

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2 Test-driven development

Another method to prioritize software design testing is test-driven development (TDD). This method involves writing the test cases before writing the code, based on the specifications and expectations of the software design. Then, you can use the test cases to guide your coding process, and refactor your code until it passes all the tests. TDD can help you ensure that your software design meets the requirements, follows the standards, and avoids unnecessary features or complexity. TDD can also help you improve the readability, maintainability, and modularity of your code, and reduce the rework and debugging efforts.

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BISHOY YEHYA

Software Engineering Manager at OLX
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Test-driven development is a good approach to cultivating code testing, but it is tricky because TDD will require more effort and time from the team. Also, you will need to have small services because it will be hard to have the TDD approach.

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3 User feedback

A third method to prioritize software design testing is user feedback. This method involves gathering and analyzing the opinions and preferences of your target users, either through surveys, interviews, focus groups, or usability tests. Then, you can use the user feedback to identify and prioritize the aspects of software design that matter the most to your users, such as functionality, usability, aesthetics, and accessibility. User feedback can help you align your software design with the user needs, expectations, and satisfaction, and enhance the user experience and loyalty.

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BISHOY YEHYA

Software Engineering Manager at OLX
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What do you think about Amazon, why do you think it is dominating the e-commerce market? Because they are a customer-centric company. Getting your user feedback is a golden opportunity to add new tests. Add test cases of the reported functionalities to ensure that those functionalities won't be broken again after changing the code. 'Add the test case' step should be included as a main step in your support process. When you get the feedback, do the following: - Debug. - Fix the issue. - Add the test case. - Deploy. Most of the developers will miss the 3rd step, so try to stick to it.

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4 Testing tools

A fourth method to prioritize software design testing is testing tools. These are software applications or libraries that can help you automate, simplify, or enhance your testing process, such as testing frameworks, testing platforms, testing libraries, or testing services. Testing tools can help you perform various types of testing, such as unit testing, integration testing, system testing, or acceptance testing, on different aspects of software design, such as functionality, performance, security, or compatibility. Testing tools can help you save time, money, and effort, and increase the coverage, accuracy, and reliability of your testing results.

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BISHOY YEHYA

Software Engineering Manager at OLX
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There are many tools to help you with being a data-driven developer. Like SonarQube, it can give you more insights into your code quality metrics like test coverage and configuring the quality gates to ensure that the team members are following the coding standards.

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5 Testing metrics

A fifth method to prioritize software design testing is testing metrics. These are quantitative or qualitative measures that can help you evaluate the effectiveness and efficiency of your testing process, such as test coverage, test quality, test duration, test cost, or test defect rate. Testing metrics can help you monitor and improve your testing performance, and identify and prioritize the areas of improvement or optimization. Testing metrics can also help you communicate and report your testing progress, results, and outcomes, to your stakeholders, clients, or users.

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6 Testing principles

A sixth method to prioritize software design testing is testing principles. These are general guidelines or best practices that can help you plan, execute, and manage your testing process, such as testing early, testing often, testing incrementally, testing iteratively, testing realistically, or testing collaboratively. Testing principles can help you adopt a systematic and consistent approach to testing software design, and avoid common pitfalls or mistakes. Testing principles can also help you adapt and adjust your testing process, according to the changing needs and conditions of your software project.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How can you prioritize which aspects of software design to test first?

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3

4

5

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7

1 Risk-based testing

2 Test-driven development

3 User feedback

4 Testing tools

5 Testing metrics

6 Testing principles

7 Here’s what else to consider

Software Design

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How can you prioritize which aspects of software design to test first?

1

2

3

4

5

6

7

1 Risk-based testing

2 Test-driven development

3 User feedback

4 Testing tools

5 Testing metrics

6 Testing principles

7 Here’s what else to consider

Software Design

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