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MrRissso [65]
3 years ago
7

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
Computers and Technology
1 answer:
8090 [49]3 years ago
3 0

Answer:

Examples of Fact-finding techniques includes:

  1. Prototyping
  2. Questionnaires
  3. Research and sites visit
  4. Interviews

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.

<u>Prototyping </u>

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

<em>Disadvantage:</em> Training and Development cost consumes resources.

<u>Research and site visit </u>

<em>Advantage :</em> better time management if the problem has been researched upon before.

<em>Disadvantage:</em> appropriate permission is often needed before using research materials.

<u> Questionnaires </u>

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

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

<u>Interviews</u>

<em>Advantage:</em> The body language of interviewees is been perceived.

<em> Disadvantage: </em>Interviewing is time consuming and costly.

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See explaination

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Since we go to each index in both the array only once, the algorithm take O(n) time.

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