Need help on my assignment. It needs to be one or two paragraphs each. 1. Name t

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Need help on my assignment. It needs to be one or two paragraphs each. 1. Name the four key steps of logical design, and their results. 2. Discuss the use of open-ended questions and close-ended questions in interviewing. Need help on my assignment. It needs to be one or two paragraphs each. 1. Name the four key steps of logical design, and their results. 2. Discuss the use of open-ended questions and close-ended questions in interviewing. 1. Name the four key steps of logical design, and their results. 2. Discuss the use of open-ended questions and close-ended questions in interviewing.

Explanation / Answer

1)

In UML,Logical data model describes the data much detail, based on how they will be physical implemented.Physical data model includes all entities and relationships. Pysical model represents all attributes of each entity.Represents primary key and foreign keys

The following are the steps to design logical data model:
1)Specify primary keys for all entities:
In this table logical data model collects information regarding primary keys of each and every table in relation and represents them in special manner.
2)Find the relationships between different entities:
In this step logical data model represents different types of relationships that are exists among all entities.
3)Find all attributes for each entity
Collescta all attributes of all entities and it will arrange them in a special manner to avoid anomolies. After that if there are any many-to-many relationships it will resolve.
4)Normalization: Finally arranges data to avoid anomolies and such that those entities and tables sould follow normalization rules.

2)

Open-Ended Questions
Open-ended questions:
These questions require more information than one word responces. The answers should come as form of a list and sentences like speech or essay. Although these questions require lengthier responses not always complicated.Open-ended questions require an answer with more depth and a lengthier response. Open-ended questions helpful to find more about a situation, whether it's in the process of an interview.

Closed-ended questions:
These come in a multitude form, and defined to have explicit options to select from.Suppose if we can answer a question as like "yes" or "no", then it is a closed-ended type question. Closed-ended questions not always as simple for sometimes they are very complicated.Closed-ended questions are very important questions in interviews and although they are potential to end conversation.

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