The difference between the new and open commands on the file menu are quite simple. The new command creates a brand new file, while the open command opens a file that already exists or has been created.
Bookstore and BookSearch are the two entities for the given scenario.
Explanation:
- For the given Book.com virtual store, there can be two entities like Bookstore and BookSearch.
- Bookstore can have all the details of the books in the virtual store. hence the attributes can be
- Bookstore attributes: bookname, Authorname, Publisher, Publishedyear, Agegroup, category.
- BookSearch entity can be used to search the books in the virtual store.
- Booksearch attributes: bookname, category, bookid, authorname.
The development of new information system is economically justified when or if the organization or group handling the information system has assessed its cost feasibility. If so, this will only fall under the circumstances that the information system is justified economically
Answer: (A) Fixed interval
Explanation:
The fixed interval schedule is the type of schedule of the reinforcement in the operand conditioning in which the the initial response are rewarded by some specific amount of the time.
The main issue with the fixed interval schedule is that the people have to wait until the reinforcement schedule get occur and start their actual response of interval. This type of reinforcement schedule occur as the output value does not posses constant value all the time.
Therefore, Option (A) is correct.
