Assignment 1

Transaction Processing Systems-

In the 1950’s computers were used to perform common business applications. Now Transaction Processing Systems are used by most everybody. I found that the following features are included in real time transaction processing systems: There needs to be Good data placement: The database should be designed to access patterns of data from many simultaneous users. There also needs to be Short transactions: Short transactions enables quick processing. This avoids concurrency and paces the systems. Another feature is Real-time backup: Backup should be scheduled between low times of activity to prevent lag of the server. High normalization is important: This lowers redundant information to increase the speed and improve concurrency, this also improves backups. Archiving of historical data: Uncommonly used data are moved into other databases or backed up tables. This keeps tables small and also improves backup times. Lastly Good hardware configuration: Hardware must be able to handle many users and provide quick response times.

In Transaction Processing Systems, there are 5 different types of files. The TPS uses the files to store and organize its transaction data: Master file, Transaction file, Report file, Work file and Program file.
Transaction Processing Systems are organized collections of people, procedures, software, databases and devices used to record completed business transactions. Transaction Processing Systems also collect, store, modify, and retrieve the transactions of an organization.