Peace be upon you With you is Ammar Juma, a software engineer with more than three years of experience in software engineering. I offer you help in designing your project and I can offer you the following: ERD Mapping Domain model Data flow diagram You only need to hand over the system requirements to me, with prices starting from 200 SAR for ERD & mapping, and it varies according to the project size and also if you request the rest of the diagrams.