Current System Analysis and Modelling Help

Need help in writing on Current System Analysis and Modelling. We have to include - o Complete 2 key Data flow descriptions (Logical data dictionaries, at least 2) o Data element descriptions (Physical data dictionaries, at least 1 of the key data entities) • Process Descriptions o A brief description for each of the key processes (top level processes in level 0 DFD) written in plain English o Write at least ONE lower level process description in structured English