⦁ what are the main reasons for introducing the concepts of superclasses and subclasses into an er model?(

1 answer:

7 0

It avoids describing similar concepts more than once, thereby saving you time and making the ER model more readable. It also adds more semantic information to the design in a form that is familiar to many people.

Hope this helped! :)

You might be interested in

A monthly interdepartmental meeting goes badly because the managers cannot agree on an agenda. Sales managers argue that new adv

AleksAgata [21]

Answer: Organizational barriers

Explanation:

Organizational barriers are the obstruction that occurs in the organization leading to failure of the task or goal.These barriers can occur due to numerous reason like mis-flow of information, hierarchical positions , regulations , facilities of organization, policies etc.

According to the question, failure that is faced during the meeting is caused due to different opinions raised by the managers therefore, no appropriate decision was made.Different position persisting managers have different opinion which is acting as the barrier for the organization.

7 0

3 years ago

When was the first earth day celebrated and who founded it.

Butoxors [25]

The First Earth Day in April 1970

Because there was no EPA, no Clean Air Act, no Clean Water Act. There were no legal or regulatory mechanisms to protect our environment. In spring 1970, Senator Gaylord Nelson created Earth Day as a way to force this issue onto the national agenda

hope it helps ....!!!

3 0

2 years ago

Summery of Primary Sources: Colonialism's Effect on the Kuba Kingdom of the Congo

Leona [35]

it very easy just read the story ok that simple

3 0

2 years ago

"The courts have played an important role in adjudicating racial categorization processes. Understanding court decisions around

irina [24]

Answer:

The courts have played an important role in adjudicating racial categorization processes. Understanding court decisions around racial categorization processes further underscores how race and ethnicity are Social and historical constructs.

Explanation:

Social construct can be defined as the process of giving the idea about something to an individual by the society. Race is an example of social construct. Race is categorized in different ways based on outlook like skin color, size of eye, accent, and physical features.

The study of history of different races and study of the reasons behind the behavioral approach of certain tribe might be an historical construct. Historical construct may be used to increase the satisfaction to the people of certain race. 

6 0

3 years ago

Maria Fernandez has a physical disability that requires an elevated seating arrangement. The HR manager noted this during her in

quester [9]

Answer is Inclusion

Explanation: Inclusion is actually ensuring the establishment of a work environment where every employee is treated fairly and valued equally, have equal access to work opportunities and resources, and is encouraged to be optimally productive to the organization.

Inclusion should not be confused with Diversity. Though closely related and a tandem of each other, Inclusion has a different concept to diversity. Diversity has to do with employing a diverse group or team of people in traits and characteristics (such as race, color, age, gender, disability, marital status, e.t.c) which makes them unique. Inclusion on the other hand has to do with organizational behavior and ethics to ensure every employee (no matter their diversity) is fairly treated and has equal access to opportunities and resources.

7 0

3 years ago