Extension of a costing programme for construction measures and maintenance

The calculation programme consists of two parts: On the one hand, a Windows programme (desktop application, implemented in WPF, C#.NET), with which construction projects can be planned and calculated, and on the other hand, an SAP component. This provides SAP service items from suppliers (ABAP programme) and transforms created calculations into purchase orders (SAP MM or SAP PM interface) or tenders (FUTURA interface). The extension mainly refers to new functionalities of the Windows programme and includes extensive refactoring measures of the existing code base. This is stored in the TFS together with the user stories and the test cases.