Conversion Of Mannual Mis Into Computer Is Ed Mis
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Conversion of Mannual MIS into Computerised MIS Arun Mishra
Steps involved in conversion System Description Input Documents Output Documents File Design Program Logic Computer Program System Verification Documentation
System Description A statement of major inputs, outputs,
processing, operations, and files needed. The purpose is to show the logical flow of information & the logical operations. Two forms of Description: Narrative Pictorial
Input Documents How
the information will be put into a Computer acceptable form? Selection of Input formats Consideration about Volume of Information, Frequency, accuracy, verification requirements, and handling of Information. Preparing inputs in machine-usable form.
Output Documents It represents the purpose/objective of the
entire operation. Output format should be treated with additional care. Output document is critical in nature. Management is exclusively concerned about it. Consideration of output layout is done at this stage as per requirement of management.
File Design The
flow of data through the system is dependent upon the design of data files. Types of equipments, storage capacity, input and output media and format are should be closely considered. The character-by-character contents of every record are specified by the file record layout.
Program Logic Flowcharts are used for documenting program
logic. They are easy to depict and understand. The program flowchart is the programmer’s logic of the detailed, step-by-step representation of how the computer program will accomplish the job. It is the blueprint of a program Used to organise the facts, outline problems, logic & sloutions.
System Verification After the program has been written & run
through the compilation process, it is placed in memory in machine readable form and is ready to process input, update the master file on disk, and print the required report. The computer will execute the program instructions in sequence until it comes to a halt.
Documentation Three types of documentation is needed: For those providing input For those running and maintaining the system. For those using the output
Steps involved in conversion System Description Input Documents Output Documents File Design Program Logic Computer Program System Verification Documentation
System Description A statement of major inputs, outputs,
processing, operations, and files needed. The purpose is to show the logical flow of information & the logical operations. Two forms of Description: Narrative Pictorial
Input Documents How
the information will be put into a Computer acceptable form? Selection of Input formats Consideration about Volume of Information, Frequency, accuracy, verification requirements, and handling of Information. Preparing inputs in machine-usable form.
Output Documents It represents the purpose/objective of the
entire operation. Output format should be treated with additional care. Output document is critical in nature. Management is exclusively concerned about it. Consideration of output layout is done at this stage as per requirement of management.
File Design The
flow of data through the system is dependent upon the design of data files. Types of equipments, storage capacity, input and output media and format are should be closely considered. The character-by-character contents of every record are specified by the file record layout.
Program Logic Flowcharts are used for documenting program
logic. They are easy to depict and understand. The program flowchart is the programmer’s logic of the detailed, step-by-step representation of how the computer program will accomplish the job. It is the blueprint of a program Used to organise the facts, outline problems, logic & sloutions.
System Verification After the program has been written & run
through the compilation process, it is placed in memory in machine readable form and is ready to process input, update the master file on disk, and print the required report. The computer will execute the program instructions in sequence until it comes to a halt.
Documentation Three types of documentation is needed: For those providing input For those running and maintaining the system. For those using the output
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