IPH from Eurocash Group

Functionalities covered a broad range of business requirements related to offers and promotions served by multiple chains. 

The project involved creating UX mockups as a basis for views.

We prepared a set of dedicated icons and built a design system which allowed adjusting the application to varied brands. In each case we were able to change colors, logo, pictures, icons and content according to the store’s brandbook. This way, the project delivery is maximally stepped up.

Although we were provided with a project of a platform, we suggested another solution which guaranteed a larger reliability and cost reduction.

The platform is based on Microsoft Azure cloud elements.

Common elements:

Dedicated elements:

The infrastructure uses Microsoft DevOps to implement the client’s application. After passing the approval process in the customer’s test environment, the application is implemented on the stage and / or prod environment using the CI / CD pipeline mechanism.

The entire infrastructure is built on the basis of Infrastructure as a Code (Terraform). Thanks to this approach, the infrastructure is stored in the repository in the form of code and is subject to versioning. It is very easy to undo the changes you have made. Additionally, we have full infrastructure documentation.

The biggest challenge was to improve the test process while implementing a large-scale system and high dynamics of design work.

In order to minimize the occurrence of failures, automatic business data compliance tests were implemented and launched to report cases of inconsistency or lack of data from the customer database.

The implementation of new functionalities often caused changes in various modules of the system, therefore, from the stage of user story analysis, we focused on a close cooperation between the testing and development team.

Joint analysis of the acceptance criteria before implementing the functionality resulted in the preparation of sets of test scenarios. The effect was a high test coverage of new functionalities which translated into a significant reduction in the number of failures occurring during tests after successive increments. By extending the above approach, we reduced the risk of defects resulting from regression. We automated the tests of existing functionalities using PlayWright and nUnit, and supplemented them by scripts in POSTMAN used in the tests of sending push notifications.

We focused on testing the integration of the built system with external systems used for exchanging information about loyalty points collected by the user, communicating with a retail client, or managing data of sales units. 

The tests required knowledge of the tools, understanding the logic of external applications and the ability to identify the source of possible failures.

We prepared a trace matrix: “Functionality – Test case – Work artifact ID” in Azure DevOps to monitor progress in test automation. 

In addition to creating test case artifacts in Azure DevOps and the subsequent use of the Test Plans plugin, this solution provided the ability to manage test cases and combine them into test plans. Thanks to this, all the work performed was to be easily verifiable, and the test results reports were available from the Azure DevOps level to all stakeholders.

With the additional creation of test case artifacts in Azure DevOps and the subsequent use of the Test Plans plugin, this solution enabled managing test cases and combining them into test plans. 

This way, all the work performed was easily verifiable, and the test results reports were available from the Azure DevOps level to all stakeholders.

Another task was to shorten the duration of tests before the production release of the mobile application by selecting test scenarios for basic functionalities. 

They formed the core of the Release Candidate tests. The resulting set of test scenarios was estimated to increase predictability in planning releases and provide time security to those responsible for business decisions.

The above-described solutions brought the following results:

The biggest challenge was to integrate multiple existing applications from the customer’s infrastructure with new APIs.

We have used multiple state of the art caching and messaging technologies to solve this problem.

Another challenge consisted of setting up the infrastructure for zero downtime during the deployment.

We have solved it by using Blue Green deployment methodology with the latest Microsoft technologies.

Our solution had an innovative search mechanism for product catalog that worked in real time, allowing customers to search a large product database (400k+) with a single digit millisecond response time at no additional infrastructure cost.