The client wished to keep maintaining, as well as developing and rebuilding a rather cumbersome and out-of-date ERP system, whose source code has been developed through many vendors and for many years (6 years). ERP systems include:

According to the ODC model, the project was divided into 3 main phases. The first phase was to study the current system and the document in as many business rules as possible in the project.

To the second phase, maintaining the existing system and further improving the necessary features were the core operations. Then, starting to make a completely new system (with new technology), more convenient and easier to use with more performance based on the requirements studied from the old system; as well as performing compare testing to ensure the results of steps.

The third phase was to conduct Android AI applications to support checkin / checkout for Merit employees. The App can work with both old and new systems, allowing the use of a PIN or face to check in / checkout.

After the phase 3 finished, STS Software GmbH proposed using The Scrum / Agile method to focus on the maintenance and improvement because of the complexity and flexible requirements from the client. Keep in mind that only when the new milestones are reached, will the trade objectives be met. The previous projects needed components that were distributed to support maintenance projects. Therefore, prioritizing features in support projects is necessary to achieve the fastest path to provide the requested features to customers.