ANALYSIS OF THE PRESENT SYSTEM.
Before you design a new system, it is important to study the system that will be improved or replaced (if there is one). You need to analyze how this system uses hardware, software, network, and people resources to convert data resources, such as transactions data, into information products, such as reports and displays. Then you should document how the information system activities of input, processing, output, storage, and control are accomplished.
For example, you might evaluate the format, timing, volume, and quality of input and output activities. Such user interface activities are vital to effective interaction between end users and computers. Then, in the systems design stage, you can specify what the resources, products, and activities should be to support the user interface in the system you are designing.
FUNCTIONAL REQUIREMENTS ANALYSIS.
This step of systems analysis is one of the most difficult. Your may need to work as a team with systems analysis and other end users to determine your specific business information needs. For example, you need to determine what type of information your work requires; what its format, volume, and frequency should be; and what response times are necessary. Second, you must try to determine the information processing capabilities required for each system activity (input, processing, output, storage, control) to meet these information needs. Your main goal is to identity what should be done, not bow to do it.
Functional requirements are end user information requirements that are not tied to the hardware, software, network, data, and people resources that end users presently use or might use in the new system.
Before you design a new system, it is important to study the system that will be improved or replaced (if there is one). You need to analyze how this system uses hardware, software, network, and people resources to convert data resources, such as transactions data, into information products, such as reports and displays. Then you should document how the information system activities of input, processing, output, storage, and control are accomplished.
For example, you might evaluate the format, timing, volume, and quality of input and output activities. Such user interface activities are vital to effective interaction between end users and computers. Then, in the systems design stage, you can specify what the resources, products, and activities should be to support the user interface in the system you are designing.
FUNCTIONAL REQUIREMENTS ANALYSIS.
This step of systems analysis is one of the most difficult. Your may need to work as a team with systems analysis and other end users to determine your specific business information needs. For example, you need to determine what type of information your work requires; what its format, volume, and frequency should be; and what response times are necessary. Second, you must try to determine the information processing capabilities required for each system activity (input, processing, output, storage, control) to meet these information needs. Your main goal is to identity what should be done, not bow to do it.
Functional requirements are end user information requirements that are not tied to the hardware, software, network, data, and people resources that end users presently use or might use in the new system.
