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29 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Context Diagram |
A graphical method of representing a system using a process, entities, inputs and outputs |
Represents... |
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Data Dictionary |
Provides a comprehensive description of each field of a database or information system. Contains characteristics such as field name, data type, size of field and field description. |
Provide example |
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Data Flow Diagram |
A graphical method of representing a system using a number of processes together with inputs. It shows the logical flow of data through the system. |
Representation of... |
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Decision Table |
A table that shows all possible outcomes from decision statements within the system. |
Outcomes |
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Decision Tree |
Diagrammatic representation of the possible outcomes from decision statements. |
Diagram |
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Direct Conversion |
Involves the immediate change from the old system to the new |
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Feasibility Report |
A report where the nature of the problem is clearly described and recommendations are made to the proposed solution |
Purpose, axes |
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Gantt Chart |
A timeline that represents when tasks or stages in the development of a project are to be completed. The x-axis represents time and the y-axis indicates the task. The duration of time is represented by horizontal bars. |
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Parallel conversion |
Involves the old and new system in operation simultaneously for a period of time before the old system is removed. |
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Phased coversion |
Involves the gradual implementation of certain components of the new system and the gradual removal of the old system over a period of time |
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Phased coversion |
Involves the gradual implementation of certain components of the new system and the gradual removal of the old system over a period of time |
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Pilot conversion |
Involves trialling the new system in a local area before implementing the whole system |
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Prototype |
A working demonstration version of a system to determine the requirements and problems |
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Prototype |
A working demonstration version of a system to determine the requirements and problems |
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Requirements report |
Specifies the purpose and requirements of the new system |
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Prototype |
A working demonstration version of a system to determine the requirements and problems |
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Requirements report |
Specifies the purpose and requirements of the new system |
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Storyboars |
Shows the various interfaces present in a system as well as the links between them. |
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Systems Analyst |
The person responsible for analysing the existing system, determining the requirements and designing the new system. |
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Technical Feasibility |
Whether or not the hardware available is sufficient for the new system |
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Technical Feasibility |
Whether or not the hardware available is sufficient for the new system |
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Economic feasibility |
Is the current budget sufficient to fulfil all the needs of the current system |
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Technical Feasibility |
Whether or not the hardware available is sufficient for the new system |
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Economic feasibility |
Is the current budget sufficient to fulfil all the needs of the current system |
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Schedule feasibilty |
Has enough time been allocated for the successful development of the system |
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Technical Feasibility |
Whether or not the hardware available is sufficient for the new system |
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Economic feasibility |
Is the current budget sufficient to fulfil all the needs of the current system |
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Schedule feasibilty |
Has enough time been allocated for the successful development of the system |
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Operational feasibility |
Will the system be able to run smoothly after implementation |
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