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33 Cards in this Set
- Front
- Back
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Outsourcing |
Practice of turning over some or all responsibility for information systems applications and operations to another firm. |
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Packaged Software Producers |
Produce pre-packed or off the shelf systems |
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Turnkey |
cannot be modified to meet specific users needs |
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Non-turnkey |
can be modified to meet specific users needs |
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Enterprise Solutions Software |
Consist of a series of integrated modules Each module supports individual traditional business function |
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Cloud Computing |
Software is rented or licensed from third party providers |
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Reuse |
Use of previously written software resources in new applications |
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Process Modeling |
Graphically represents the processes that capture, manipulate, store, and distribute data between a system and its environment and among system components |
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Data-flow Diagrams (DFD) |
Graphically illustrate movement of data between external entities and the processes and data stores within a system |
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Data Flow |
Depicts data that are in motion and moving as a unit from one place to another in the system |
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Data Store |
Depicts data at rest |
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Process |
Depicts work or actions performed on data so that they are transformed, stored, or distributed |
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Source/Sink |
Depicts the origin and/or destination of the data |
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Context Diagram |
A data-flow diagram of the scope of an organizational system that shows the system boundaries, external entities that interact with the system and the major information flows between the entities and the system |
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Level-O Diagram |
A data-flow diagram that represents a system’s major processes, data flows, and data stores at a higher level |
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Functional Decomposition |
Act of going from one single system to many component processes |
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Level-n Diagrams |
A DFD that is the result of n nested decompositions of a series of subprocesses from a process on a level-0 diagram |
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Completeness |
DFD must include all components necessary for the system |
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Consistency |
The extent to which information contained on one level of a set of nested DFDs is also included on other levels |
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Primitive DFDs |
Lowest logical level of decomposition |
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Gap Analysis |
The process of discovering discrepancies between two or more sets of data-flow diagrams or discrepancies within a single DFD |
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Indifferent Condition |
Condition whose value does not affect which action is taken for two or more rules |
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Impertinence |
Question everything |
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Impartiality |
Find the best organizational solution |
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Relaxation of constraints |
Assume anything is possible and eliminate the infeasible |
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Attention to detail |
Every fact must fit with every other fact |
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Reframing |
View the organization in new ways |
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Open-Ended |
No pre-specified answers |
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Close-Ended |
Respondent is asked to choose from a set of specified responses |
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Joint Application Design (JAD) |
Brings together key users, managers, and systems analysts |
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Prototyping |
Rudimentary version of system is built User quickly converts requirements to working version of system |
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Business Process Reengineering (BPR) |
Search for and implementation of radical change in business processes to achieve breakthrough improvements in products and services |
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Disruptive Technologies |
Technologies that enable the breaking of long-held business rules that inhibit organizations from making radical business changes |
