The document proposes a cellular purchasing system that allows users to shop and pay bills using their mobile phones by sending SMS messages. It discusses the existing mobile phone services in Bangladesh that could enable such a system. The system would work similarly to a credit card but may see greater acceptance due to the large number of mobile users. It then outlines the initial concept, flow, and benefits for both customers and mobile operators of implementing a cellular purchasing system in Bangladesh.

2. Presented by: SHAIKH FARID – BIN – TAYUB Class Roll – 43 Exam Roll – 164 Reg. No – 883996 session – 1999-2000 ERSHAD RASUL SERAJEE Class Roll – 31 Exam Roll – 154 Reg. No – 883951 session – 1999-2000 SK. MD. MOINUL KARIM Class Roll – 29 Exam Roll – 153 Reg. No – 883995 session – 1999-2000

5. Initial Concept of the Cellular Purchasing system Shopping System By Cash By Credit By Debit By Cellular Phone SMS Operator Business Customer Pre – paid Post – paid Not over the deposit Not more then AC balance Operator base Business Center Dbase Transact money between two parties

9. The Flow chart of the purchasing system Start Purchase SMS the amount Post-paid? Purchase amount <= balance Check the limit of purchase You don’t have enough money in your account Yes No No Yes

10. Limit amount >= Purchase amount Your amount has exceeded your limit amount Your amount has been transferred Return limit amount – Purchase amount Make another purchase Return balance - Purchase amount Your amount has been transferred Make another purchase Go to start End Yes No Yes No Yes No Yes

11. Customer paying the amount by sending SMS Operator Dbase Server Customer sending the amount by SMS

12. Sending the message Step 1 COMMAND < PIN> < Bill no > < AMOUNT > OPTION BACK Step 2 XXXX OPTION BACK Step 3 Amount successfully deposited Against <Bill no> OPTION BACK Step 4 Message SELECT EXIT

21. Thank You