Three elements of demand analysis

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Edited at 2022-10-13 10:22:04

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Three elements of demand analysis

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Outline

Three elements of demand analysis

Accuracy of requirements

Clarity of needs

Avoid ambiguous statements and make requirements specific and clear.

For example, clearly specify the specific requirements for a feature, such as a login feature that needs to include username and password verification.

For example, clearly specify the format and range requirements of the data. For example, the date format required to be entered is YYYY-MM-DD, and it is limited to 2010 to the present.

Consistency of requirements

Make sure there are no conflicts between requirements and that the relationships between requirements are clear and unambiguous.

For example, two different requirements cannot conflict with each other, such as requiring a system to be compatible with both Windows and Mac operating systems, but requiring the system to only run on Windows.

For example, the hierarchy and dependencies between requirements should be clear, such that the implementation of one requirement is based on the completion of other requirements.

completeness of requirements

Make sure the requirements cover all functional and non-functional requirements.

For example, requirements should include the basic functions of the system, user requirements, security requirements, performance requirements, reliability requirements, etc.

For example, requirements should consider various possible usage scenarios and user needs to fully meet user expectations.

feasibility of requirement

technical feasibility

Ensure that the proposed requirements can be achieved with existing technology.

For example, whether the technology involved in the requirement has mature solutions.

For example, whether the technology involved in the requirement can be completed within the given time and budget.

economic feasibility

Ensure that the cost of implementing the requirements is acceptable and can bring sufficient economic benefits.

For example, whether implementation of the requirement requires expensive hardware or software resources.

For example, whether the implementation of requirements can improve work efficiency, reduce costs, or increase revenue, etc.

time feasibility

Ensure implementation requirements are completed within the stipulated time.

For example, whether implementation of the requirements will exceed the project deadline.

For example, whether the implementation of requirements can meet the requirements of urgent needs.

demand variability

Flexibility of needs

Ensure requirements can be adapted and modified based on changing needs.

For example, whether the implementation of the requirement supports adding, deleting, or modifying functionality.

For example, whether the implementation of the requirements can be adjusted based on user feedback.

stability of demand

After the requirements are determined, changes in requirements should be minimized to avoid duplication and waste of work.

For example, whether the modification of requirements requires large-scale changes to existing systems.

For example, whether changes in requirements will have an impact on completed work.

priority of needs

Determine the importance and urgency of needs so that reasonable arrangements and implementation can be made with limited resources.

For example, whether the requirement is relevant to the user's core needs will have a higher priority.

For example, whether the order of requirement implementation is consistent with the overall plan of the project.