AIS FINAL STUDY GUIDE

AIS FINAL STUDY GUIDE - AIS FINAL STUDY GUIDE Class2 Slide...

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AIS FINAL STUDY GUIDE Class 2 Slide 18 Organizations are transmutative social entities forming goal-directed structured activity systems Slide 23 Value Chain Analysis Slide 24 Organizations create value through managing their business and information processes At the heart of managing is the decision-making involved in planning, executing, controlling and evaluating the organization’s business and information process. Slide 27 Value Chain and Supply Chain Slide 30 A process is a time-dependent sequence of steps governed by a rule called a process law. All processes have five common ingredients: - the entities participating in the process - the elements describing the steps in a process (called events in business processes) - the relationships between these elements
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- the links to other processes - the resource characteristics of the elements Class 3 Slide 28 Flowcharting Symbols Class 4 Slide 8 Data versus Information o Data represents raw facts o Information is data made meaningful o Meaningful data is: Relevant – able to affect the user’s decision Reliable Timely Accurate, free from errors Complete Slide 21 The General Systems Model o A system is a set of elements which operate together to achieve some objective (organization) o Systems have Inputs Processes Outputs Boundaries Environments Class 5 Slide 21 SQL
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Class 6 Slide 15 Systems Life Cycle o Creation SDLC o Startup Implementation, error correction o Maturity Stable system, routine maintenance o Decline Dissatisfaction and changed requirements Slide 16 Systems Development Life Cycle o Systems Analysis o Systems Design o Systems Development o Systems Implementation o Systems Operation and Maintenance Class 7 Slides 5 Entity-Relationship Models Slide 6 Extended E-R Models o Optionalities Optional or mandatory o Cardinalities 1:1, 1:M, M:1, or M:M o Attributes Keys and non-key attributes
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Slide 7 EER Models Slide 8 Data Flow Diagrams Slide 9 DFD Conventions o Processes should have unique names and be sequentially numbered (1.0, 2.0, 3.0; 2.1, 2.2 etc.) o A process must have at least one input flow and at least one output flow o A data flow has at least one end connected to a process o Data cannot flow directly back to an earlier process o A data store must have at least one input and at least one output data flow o Any single DFD should not have more than about seven processes o Omit error and exception handling from Level 0 diagrams Slide 15
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Event-Oriented Models o The Semantic Modeling Principle Data in an information system should model the structure of the relevant categories of reality in its application domain Slide 23-25 Event-Oriented Models o REA Ontology Economic Resources (R) – e.g. Inventory
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This note was uploaded on 03/19/2010 for the course ACCT 458 taught by Professor Gillett during the Fall '09 term at Rutgers.

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AIS FINAL STUDY GUIDE - AIS FINAL STUDY GUIDE Class2 Slide...

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