In software design we usually first determine all requirements related to the application to be programmed from the user/client perspective. In this step, we develop the requirement specification. Afterwards, we individually define which programming techniques, program structures and algorithms should be used for programming to meet these requirements. Then the functional specification document is created.
Our experts have a good command of the approaches - from data modeling, entity-relationship model, and software architecture to object-oriented analysis and design patterns to a range of different programming languages.