Info Systems: System Design & Other Elements Flashcards
TPS- Transaction Processing Systems
the systems that process and record the routine daily transactions necessary to conduct the business
MIS-
provides users predefined reports that support effective business decision
DSS
Decision support- extension of an MIS that provides interactive told to support decision makers. Expert system
Executive Information system
Senior executives with immediate and easy access to internal and external info to assist in strategic decision making
Systems Development Life Cycle
framework for planning and controlling the detailed activities associated with systems development.
Physical Design
-Call of the question.
Systems Development Life Cycle Steps- A ditto
1) Systems Analysis
2) Conceptual Design
3) Physical Desgin
4) Implementation & Conversion
5) Training
6) Testing
7) Operations and Maintenance
Participants in Business Process Design
1) Management
2) Accountants
3) Info Systems Steering Committee
COBIT Framework
The framework provides a set of measures, indicators, processes and best practices to maximize the benefit of info technology
COBIT Framework-Business Objectives Might Include
Objectives might include:
1) Effective Decision support
2) Efficient transaction processing
3) Compliance
COBIT Framwork-Governance Objectives
1) Strategic Alignment
2) Value Delivery
3) Resource Management
4) Risk Management
COBIT Framework- Performance Measurement
Include tracking and monitoring strategy
COBT Framework - ICE race
1) Integrity
2) Confidentiality
3) Efficiency
4) Reliability
5) Availability
6) Compliance
7) Effectiveness
Domains & processes of COBIT
1) Plan and Organize- Direct the IT process
2) Axquire & Implement- Deliver the IT solution
3) Deliver & Support-Deliver the IT service
4) Monitor & Evaluate -Ensure directions are followed
Role of technology systems in control monitoring
General Controls– ensure that an organizations control environment is stable and well-managed
1) Systems development standards
2) Security management controls
3) Change management procedures
4) Software acquisitions, development, operations & maintenance controls.
Role of technology systems in control monitoring
Application Controls - prevent, detect, and correct transaction error and fraud and are application specific, providing reasonable assurance as to system
a) Accuracy
b) Completeness
c) Validity
d) Authorization
Role of technology systems in control monitoring - Input Controls
1) Data validation at the field level
2) Prenumbering Forms
3) Well-Defined source data preperation procedures
Role of technology systems in control monitoring- Processing Controls
1) Data Matching
2) File Labels
External Labels read by Humans
Internal Labels written in machine readable form
Output Controls
1) User Review of Output
2) Reconciliation procedures
Control Effectiveness
1) Strategic Master Plan
2) Data Processing Schedule
3) Steering Committee
4) System Performance Measurements
System Analyst
a) Internally Developed System
1) works with users to determine system reqs
2) designs the overall application systems
3) Determine the type of network needed.
b) Purchased System
1) integrates the application with existing internal and purchased applications
2) provides training to end users
Computer Programmer
Application Programmer/ Software Developer
1) write or maintain application programs
2) For internal control purposes, application programmers should NOT be given to data write/upgrade purposes or unrestricted or uncontrolled access
System Programmer
responsible for installing, supporting, monitor and maintain the operating system including capacity planning functions.
For I/C purposes, system prog. should NOT be given access to the data
Computer Operator
reponsible for scheduling and running processing jobs.
can be automated and in large computing environments must be automated.
