Presentation is loading. Please wait.

Presentation is loading. Please wait.

Transaction Processing Systems: The Need for Systems Design Methodology Teaching Paul Rosenthal California State University, Los Angeles.

Similar presentations


Presentation on theme: "Transaction Processing Systems: The Need for Systems Design Methodology Teaching Paul Rosenthal California State University, Los Angeles."— Presentation transcript:

1 Transaction Processing Systems: The Need for Systems Design Methodology Teaching Paul Rosenthal California State University, Los Angeles

2 Outline Importance of TPS Applications Scope of TPS Applications Recommended Physical Design Charting Approach Typical Physical Design Methodologies Oversimplification of Design Examples

3 Transaction Processing Systems Transaction Processing Systems applications (TPS) are the core of information systems (IS) impact on the public. In the typical business organization, because of the number of clerical workers normally involved, they constitute the majority of IS project funding requirements.

4 A Typical Text’s View Turban, McLean & Wetherbe (2004). IT for Management.

5 The True Scope of Transaction Processing Systems

6 The Need for Integrated Design Methodology Teaching

7 The Need for Physical Design Methodology Teaching For TPS, a physical design is created from a DFD based logical design, by separating processes and data stores by: time (daily vs. monthly, day vs. night...), place (client or server), centralized vs. distributed..., online vs. batch, manual vs. automated, etc.

8 A Term Project Architecture

9

10 Typical Physical Design Methodologies Whitten (2004) - Their physical data flow diagram based method for an online system demonstrates: person/machine boundaries network architecture technology assignment process distribution data distribution

11 Typical Physical Design Methodologies Pressman (2004) – diagrams a process view of the transition to design

12 Oversimplification of Design Examples

13 Partial Function Design

14 More Complete Online Scope

15 Oversimplification of Scope Shelly, Cashman & Rosenblatt (2006)

16 More Complete System Scope

17 Standard USE Case Charting Method

18 Replace Incorrect Symbols


Download ppt "Transaction Processing Systems: The Need for Systems Design Methodology Teaching Paul Rosenthal California State University, Los Angeles."

Similar presentations


Ads by Google