Name: usman aliyu
The Problem of Manual System
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- High Cost
- Lack of degree of Accuracy
- 3.5.2 Student grade records
| 3.4.3 The Problem of Manual System
The following are some of the problems found in the existing manual system: Time wasting: Since the system is more or less manually operated, inefficiency, low speed in processing Student information system. Security: There is inadequate security of data regarding to the existing system, where by an internal or external intruder can alter or remove some vital information about a particular student. High Cost: In manual system, number of manpower personnel has to be employed this does not save organization money when compared to the computerized system. Error prone: The existing system is highly error prone, because mistakes can easily be made as a result of over working and tiredness this normally leads to inaccuracy of the gathered records. Lack of degree of Accuracy: In manual processing of data, it was found that there is usually a mistake 3.5. THE NEW SYSTEM This is how the newly designed system supposed to be. 3.5.1 Student Registration The newly designed system is more efficient, highly secured and convenient when it comes to storage and information retrieval. The users of the system are being presented with appropriate forms which they will fill and submit in a convenient manner without the help of any computer expert or undue effect from their part. In terms of failure, the system restores the data to its initial state before the failure and users are being authenticated before they can have access to the system. 3.5.2 Student grade records The student’s grades record is automated and put in the computer, so that each students in the faculty can easily access the system and see his result in the most convenient and effective way. 3.6 THE DATA FLOW DIAGRAM (DFD) The data flow diagram (DFD) being an example of a model used by system analysis, it is a tool that describes the flow of data through a system and work performed by the system. They are easy to read and they consist of only three symbols and one connection. Rectangles: these represent processes or work to be done. Squares: this represents external agents and is also the boundary of the system. Close boxes: represents data stores and are some times called files or databases. The arrows represent data flow or input/output from the processes Figure 3.1 a simple data flow diagram Download 0.97 Mb. Share with your friends:
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