مطلوب المساعدة فى هذا البروجكت -- اعداد ال Dfd

السلام عليكم إخواني أنا طالبة بالجامعة
مطلوب منا هذا البروجكت وماعرفت شي منه
أتمنى من إلي يعرف الحل يساعدنا بأسرع وقت وما يبخل علينا
أنتظر حلولكم ,,,,,, وجزاكم الله ألف خير يا أهل الخير
البروجكت هوو:

The department of public works for a large city has decided to develop a web based
Pothole tracking and repair system (PHTRS). The following is a description:


Citizens can log onto a Web site and report the location and severity of potholes. As potholes are reported they are logged within a "public works department repair system" and are assigned an identifying number, stored by street address, size (on a scale of 1 to 10), location (middle, cub, etc.), district (determined from street address), and repair priority (determined from the size of the pothole). Work order data are associated with each pothole and include potholes location and size, repair crew identifying number, number of people on a crew, equipment assigned, hours applied to repair, hole status (work in progress, repaired, temporary repair, not repaired), amount of filler material used, and cost of repair (computed from hours applied, number of people, material, and equipment used).
Finally, a damage file is created to hold information about reported damage due to the pothole and includes the citizen's name, address, phone number, type of damage, dollar amount of damage. PHTRS is a Web-based system; all queries are to be made interactively.


You are required to:
1. Identify data objects and their attributes.
2. Develop a data-flow diagram for the PHTRS
3. Develop an architectural design for PHTRS based on the data flow diagram developed in 2 above.