Read the following scenario carefully and answer the question a and b.
‘Al Safina’ is an online system used by a charter company that owns boats that are used for charter trips to islands. ‘Al Safina’ system tracks the boats it owns, including each boat’s ID number, name, and seating capacity. The company also tracks information about the various islands, such as their names and populations. Every time a boat is chartered, it is important to know the date that the trip is to take place and the number of people on the trip. The company also keeps information about each captain, such as Social Security number, name, birth date, and contact information for next of kin. Boats travel to only one island per visit.
The system also tracks the information about the customers who are renting the boats. Apart from the this all the payments made by the customers are also recorded. The customer can either pay online using his credit card or in the office using cheque or cash.
a. From the above scenario identify the major classes and draw a domain class diagram for the same. Take a picture of your diagram and paste in word file. (10 marks)
b. Implement the diagram which you draw in part ‘a’ in draw.io download it and paste it in the same word file where you pasted the answer of part ‘a’ and submit it using black board. (5marks)
Sample Solution
denied that the fundamental cause of unemployment is wage and price rigidities (Higgs, 1995). He said that once full employment is reached then markets can work freely. He also claimed in his book “The General Theory of Employment, Interest and Money” that socialization of investment incorporating public-private partnership, might be needed to secure full employment (Keynes, 1936). He opposed to an economy which generated far less than it could, a problem which left millions of people unemployed in economies where work is not only social status, but source of revenue. The significant impact of Keynesianism throughout the World War II is widely attributed to the obliteration of mass employment, which occasioned in an extreme influence and spread of Keynesianism connecting to the government’s duty of upholding full employment.( (Higgs, 1995) For example, in 1944, the UK government espoused a plan towards ensuring a “high and stable level of employment” as a part of its employment policy (Jstor.org, 2012). In the USA, the Employment Act of 1946 displayed the commitment of the Federal Government in embracing measures to accomplish “maximum employment, production and purchasing power”. The dedications by both the UK and the USA were of ultimate importance concerning the spread and influence of Keynesianism, even though they were lacking the ways of reaching the stated aims of maximum employment (Jstor.org, 2012) When looking at the case of the United Kingdom, Keynes had an opinion that the target 3 per cent of average employment was tremendously optimistic and said that there was no possible harm in putting it into practice. It is obvious that the post-war success enjoyed by the United Kingdom and the United State can be credited to the stabilization policy of Keynesianism. James Tobin, the most well-known US Keynesian economist, once claimed that a strong case had been proven for the success of Keynesianism (Tobinproject.org, 2013). Tobin disputed that most of the developed democratic and capitalist states ado>
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