Top 10 requirements on for computer-based transaction processing

1. A business transaction requires the execution of multiple operations.

2. Transaction volume and database size adds complexity and undermines efficiency.

3. To scale up a system for high performance, transactions must execute concurrently.

4. Each transaction should either return an acknowledgment that it executed or return a negative acknowledgment that it did not execute.

5. The system should be incrementally scalable.

6. When an electronic commerce (e-commerce) web site stops working, the retail enterprise is closed for business.

7. Records of transactions, once completed, must be permanent and authoritative.

8. The system must be able to operate well in a geographically distributed environment.

9. The system should be able to personalize each user’s on-line experience based on past usage patterns.

10. The system must be able to scale up predictably and inexpensively to handle Internet loads of millions of potential users.