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- Case study: Students and staff purchase ready to eat snack-foods such as chocolate bars, cookies, chips, drinks, etc. using an automated vending machine. Each snack-item has a price and a name. Any customer can buy an item, using funds available on the university identity card to pay for it. Cash payments are not allowed. The vending machine has a card reader. Customers tap their ID card against the card-reader. The card-reader reads the card and stores its details for the duration of the interaction. After the card is verified, the customer may choose the snack item and opt to buy it. The vending machine will verify that there is sufficient balance on the card to pay for the item and automatically deducts the amount towards the purchase of the snack-item if sufficient funds are available. The customer can buy as many items as they’d like. Task: Draw a sequence diagram depicting a successful sale scenario for the case study described above.Symmetric key encryption: 1- Choose an algorithm that uses modern key symmetric cryptography technology. 2- Writing a report on it and explaining its method of work in detail, with no more than two pages (in Arabic or English). 3- Apply and implement the algorithm that you have chosen in the encryption and decryption process and include that in the report. (You can write code in one of the languages you are proficient if needed)Give Authentic and Relevant Answer. Software Engineering The client's ultimate objective is to have an online software system that gives information about the movies that the client sells to customers online. The system gives information about movies and actors/actresses. That is, the system should be accessed online. Each movie is identified by title and year of release. A movie has a genre (drama, comedy, etc.), a running time, and one director. A movie is made at a movie studio and may have multiple producers (people in charge of the movie production). A movie studio has a unique name and address, and may make one or more movies. Producers are identified by name and date of birth and produce one or more movies. Directors are also identified by name and date of birth and direct one or more movies. Assume that directors don’t act or produce movies. Actors are identified by name and date of birth, and may appear in one or more movies. An actor who appears in a movie, has a role. There…
- Detailed security system for the College Registration System. For example: Mentioned the Software used for security purpose and write down all the detailed security system that is needed for the College.Description Body mass index (BMI) is a number calculated from a person’s weight and height.According to the Centers for Disease Control and Prevention, the BMI is a fairlyreliable indicator of body fatness for most people. BMI does not measure body fatdirectly, but research has shown that BMI correlates to direct measures of body fat, such as underwater weighing and dual-energy X-ray absorptiometry. The formula for BMI is Weight/Height2 Where weight is in kilograms and height is in meters. Write a program that prompts for metric weight and height and outputs the BMI. For example, an execution could look like this:Please enter weight in kilograms: 50Please enter height in meters: 1.58BMI is: 20.0288415318Context: Measuring Air Quality Levels of various air borne pollutants such as Nitrogen Monoxide (NO), Nitrogen Dioxide (NO2) and particulate matter (also called particle pollution) are all major contributors to the measure of overall air quality. For instance, NO2 is measured using micrograms in each cubic metre of air (㎍/m3). A microgram (㎍) is one millionth of a gram. A concentration of 1 ㎍/m3 means that one cubic metre of air contains one microgram of pollutant. To protect our health, the UK Government sets two air quality objectives for NO2 in their Air Quality Strategy The hourly objective, which is the concentration of NO2 in the air, averaged over a period of one hour. The annual objective, which is the concentration of NO2 in the air, averaged over a period of a year. The following table shows the colour encoding and the levels for Objective 1 above, the mean hourly ratio, adopted in the UK. Index 1 2 3 4 5 6 7 8 9 10 Band Low Low Low Moderate Moderate Moderate High…
- Course: Research Methodology During a research work on “A study of security issues in a banking system,” a research scholar needs to get the feedback of respondents. Please help him with the below-given points along with a brief justification about the basis of your suggestion. a. Who can be the probable respondents b. Which sampling method he should choose and why.Pearson Institute of Higher Education EnrolmentAt the Pearson Institute of Higher Education, the degrees offered have a number of years in which a student is expected to complete the degree. On average, the number of years for a degree is 4. If thestudent takes more than 6 years to complete the degree, they are at risk to be expelled from the institution or asked to repeat the degree altogether. Pearson management has contacted you to write a program to be used to check which students are behind their expected time of degree completion. You have been provided with a text file containing a list of all the students enrolled at the institution with the number of years they have been enrolled. It is structured as follows: Sample Data – PIHEstudents.txtSheunesu Makura, 6Thando Mandela, 4Palesa Ramodike, 3Mariaane Van Der Walt, 5Xolisa Gqeberha, 4 Create a Java application based on the scenario you have been provided above. The application must read the names and the years from the…Please explain ur thought process. Starting the code like shown
- Systems Analysis Assignment (Microsoft Word and Excel) You and your team have been hired to set up a computer classroom for Tech United, Inc. An up and coming tech startup who will like to become a tech training company. Tech United, Inc. wants to offer various different kinds of tech training at their new office location. They have only one classroom space available that can accommodate up to 30 students. The classroom is already equipped with tables and chairs. The classroom, however, does not have any computers, routers, projectors, smartboard etc. This is where you come in. The company has $40,000 as a starting budget and will like for you to determine for them what computers/keyboards/mouse/router/printer/smartboard etc. they should buy. You determine based on their budget, how many of each item should be purchased for the classroom. Deliverables Deliverable Part 1: A systems analysis report on what kind of computers and hardware the company should use in their classroom,…Computer Science A patient record and scheduling system in a doctor’s office is used by the receptionists, nurses, and doctors. The receptionists use the system to enter new patient information when first-time patients visit the doctor. They also schedule all appointments. The nurses use the system to record the results of each visit. This process includes entering some patient treatment information and prescriptions. The doctors may do that process, but most frequently they let the nurses do them. For each visit, free form text fields are used captures information on diagnosis and treatment. The nurses can also access the information to print out a history of patient visits. The doctors primarily use the system to view patient history. The system shall serve 1K users at a time and also it could be access through mobile phones, so it should support all different screen sizes. Identify two functional requirements and two non-functional requirements.Overview: A Sports Club is an organization formed in order to help its members develop interest in certainsports.Usually, members interested in the same sport are divided into groups and an expert trainer is responsible for training each group.In this TMA, it is required to help the head of a Sports Club for kids implement application to keep track of the kids (members of the club) and the sports they are interested in.Requirements:After a quick meeting with the head of the sports club, you got the following information: It is required to store the whole data (all groups of all sports) in one collection. Each group has a number, a trainer and they are interested in a certain sport (e.g. football). In addition, it contains many kids with flexibility of adding and removing kids within a given limit for the maximum number of kids who could be in the same group (where this limit is fixed and unified for all groups). Furthermore, there are other attributes (add at least 2attributes from…