Consider what fact-finding techniques you would use to identify the important facts needed to develop a database system. Please consider at least 4 methods and compare the advantages and the disadvantages of each method

Examples of Fact-finding techniques includes:

Explanation:

It is important to note that a database system is a tool that allows users to define, create, maintain, and control access to a collection of logically related data and description of these data, designed to meet the information needs of an organization.

Prototyping

Advantage:  enables testing and understanding of the system in advance before final implementation of solution, while requiring less time for research.

Disadvantage: Training and Development cost consumes resources.

Research and site visit

Advantage : better time management if the problem has been researched upon before.

Disadvantage: appropriate permission is often needed before using research materials.

Questionnaires

Advantage: This technique is not expensive, and responses can be calculated and analysed quickly.

Disadvantage: There may be Incomplete answers received from users and body language of user cannot be observed.

Interviews

Advantage: The body language of interviewees is been perceived.

Disadvantage: Interviewing is time consuming and costly.

what is inputmismatchexception?