Consider an automated teller machine (ATM) in which users provide a personal identification number (PIN) and a card for account access. Give examples of confidentiality, integrity, and availability requirements associated with the system and, in each case, indicate the degree of importance of the requirement.
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- Computer Science Assume you work in the IT department at an organization in Florida. The 500 employees in the organization are diverse in age, gender, race, nationality, and religious preference. Scenario: You discover pornographic images on a company server, which you are responsible for maintaining. You think that some of the images are of nude children. After a forensics investigation, you cannot trace the origins of images to a specific user in the organization. You discover that dozens of employees, including a co-worker, have viewed the images, but no one has reported the incident. What do you do? Whom do you inform? Do you delete them? Do you block further access? Do you call the police? What are the legal requirements you must take?Let's apply our knowledge from this unit to a scenario that illustrates student registration: Each year, students of an academic institution register for classes in their respective programs. The students use an online university registration system to obtain information about the classes offered. This system also stores other student data. University administrators in charge of registration are on hand to advise students on their course selection. The online registration system requires additional hardware and software to maintain security of the system and to manage the constant student access during the registration period. Some students may still opt to use paper forms for their registration. Remember, this university competed against all the other educational choices the student had, as it was not a forgone conclusion that the student would have picked this university. Task A: Identify the customers, products and services, business process, participants, information, technology,…Let's apply our knowledge to a scenario that illustrates student registration: Each year, students of an academic institution register for classes in their respective programs. The students use an online university registration system to obtain information about the classes offered. This system also stores other student data. University administrators in charge of registration are on hand to advise students on their course selection. The online registration system requires additional hardware and software to maintain security of the system and to manage the constant student access during the registration period. Some students may still opt to use paper forms for their registration. Remember, this university competed against all the other educational choices the student had, as it was not a forgone conclusion that the student would have picked this university. Identify the customers, products and services, business process, participants, information, technology, context and…
- Transfer the following verbal description into a unified ERM: A person (P-ID) is either an employee or a manager. Persons work for one or more companies (C-ID). Companies usually employ at least one person. A manager manages one department (Dept-ID), which is assigned to one company, while companies have several departments.In a PhD program, students join a particular specialization offered by a department. Aspecialization with same title (e.g., DBMS) may be offered by one/more depts independently. Teachers are appointed to a specific department and given a room and telephone. Each department should have a teacher who serves as its head. Courses are offered under various specializations. A teacher may teach many courses and a course may be taught by many. A student studies a course under a teacher during some semester (e.g., semester 1 of 2019), and is awarded a grade. At eacher’s research interest may lie in one/more specializations. Courses have one/more/zerop prerequisites Construct an E-R diagram for the above specification. Document all assumptions. Please don't copy answer form internet..i will give negative feedbackIn the context of a computer network, explain the relationship between dependability and availability. It has become outdated because of the reasons stated above. Is a lengthy deliberation necessary?
- Suppose that you are given the following information for the articles publications: • Each article is published in a Journal only. Article may have their own identification number, name, and any other relevant information. Articles cannot be duplicated and will be only accepted in a Journal. Journal will have their identification number, name, any other relevant information. • Authors may publish one or more articles at a time, but each article must be distinctive and published in the appropriate journal. If necessary, the author may be required to present their work at a specific conference. The details of the conference must also be recorded. A reviewer will examine an article before it is published. Each reviewer is only allowed to review two articles from the same journal. Sketch an Enhanced Entity Relationship Diagram (Chen's Model) based on the scenario above. Include all the relevant entities and you are also encouraged to add any other relevant entities to specify the…1. Part 1 Below is the description of a Clothes Information Store (CIS) System. Customers are identified by a customer ID. Customer names, addresses, and ages must be recorded. Brands are identified by a brand ID. For each brand, the brand name, country of origin, and year of establishment must be recorded. ● ● ● Each clothing item has a unique clothing item ID. • Each clothing item has a name, description, and price. ● ● Each brand has at least one clothing item. Each clothing item has only one brand. Each brand produces multiple clothing items. Customers purchase clothing items. A customer could purchase one or more clothing items, and a clothing item could be purchased by (zero or) one customer. Question: Develop an ER diagram that describes a conceptual model for CIS. 1. Indicate the primary key for each of the entities. 2. Include the attributes for the different entities in the ER model. 3. Include the cardinalities of the different relationships.Draw a use-case diagram for an online university registration system. The system should enable the staff of each academic department to examine the courses offered by their department, add and remove courses, and change the information about them (e.g., the maximum number of students permitted). It should permit students to examine currently available courses, add and drop courses to and from their schedules, and examine the courses for which they are enrolled. Department staff should be able to print a variety of reports about the courses and the students enrolled in them. The system should ensure that no student takes too many courses and that students who have any unpaid fees are not permitted to register (assume that fees data are maintained by the university's financial office, which the registration system accesses but does not change).
- Luxury-Oriented Scenic Tours (LOST) provides guided tours to groups of visitors to the Washington, D.C. area. In recent years, LOST has grown quickly and is having difficulty keeping up with all of the various information needs of the company. The company's operations are as follows: LOST offers many different tours. For each tour, the tour name, approximate length (in hours), and fee charged is needed. Guides are identified by an employee ID, but the system should also record a guide's name, home address, and date of hire. Guides take a test to be qualified to lead specific tours. It is important to know which guides are qualified to lead which tours and the date that they completed the qualification test for each tour. A guide may be qualified to lead many different tours. A tour can have many different qualified guides. New guides may or may not be qualified to lead any tours, just as a new tour may or may not have any qualified guides. Every tour must be designed to visit at least…An error may occur during a transaction's execution, such as if a transaction fails (due to a system failure or other causes) before it is committed. The entire amount before a transaction may also be shown in certain cases. There may be a variation in the total amount after the transaction. there is a difference between the sending and receiving amount Let's look at the characteristics of transaction are needed to address issues in an example of a possible situationA company has various rules for how payments to suppliers are to be authorized.Some payments are in response to an approved purchase order. For approved purchase orders under $5,000, the accountingclerk can immediately issue a check againstthat purchase order and sign the check. Forapproved purchase orders between $5,000and $10,000, the accounting clerk can immediately issue a check but must additionallyobtain a second signature. Payments for approved purchase orders over $10,000 alwaysrequire the approval of the accounting manager to issue the check as well as the signature of two accounting clerks. Payments thatare not covered by a purchase order that areunder $5,000 must be approved by the accounting manager and a departmental manager who will absorb the cost of the paymentinto that department’s budget. Such checkscan be signed by a single accounting clerk.Payments that are not covered by a purchaseorder that are between $5,000 and $10,000must be approved by the accounting…