Office Equipment Suppliers (OES)

OES LTD is a manufacturer and supplier of office equipment for business. Originally, a family owned business, is now employing over 100 employees with three owners: Joan Smith (Head of Accounts), Peter Saunders (Sales and Marketing) and Raj Kang (Warehousing and Manufacture), who all have an equal share. The business has been established since the 1960s and has a good reputation with its clientele. However, over the past few years the economic downturn has affected the business adversely.
Recently, OES had secured a major contract with Reus LTD who has 50 offices in the USA. OES have been tasked with the responsibility of supplying all office furniture. As a result of securing this multi million pound contract, OES has decided to set up a warehouse and office in Washington. A feasibility study of the move proved favourable and in 2012 will see the opening of OES in the US market. A new Manager will be employed, to manage operations at this office reporting directly to Raj Kang. Below is a detailed overview of how the new operations for sales, manufacture and distribution will work.

New Operations

All furniture produced will still be manufactured in the UK in Swansea, where manager David Clarke is responsible for manufacturing operations, reporting to Raj Kang.
Sales orders can be received either through the website, once a registration process has been completed or over the phone through the sales line. Once a credit line has been established orders are both taken and processed. Credit lines are processed through credit validation company Experian. If credit is declined then a customer's order is not processed and they are removed from the system as customers.

Customers can browse through a catalogue of furniture (online and paper based). This is produced by the Sales and Marketing department with the help of manager Tracey Goodie. The products on offer range from heating and lighting goods, chairs, desks, PC equipment, storage, water machines, coffee and tea facilities, photography etc. Customers also have the choice of requesting made to measure office furniture. These are also available in a range of colours. The cost of making this furniture is supplemented by a labour charge which is chargeable at a rate of £25.00 per day.

Once the order has been received by the sales department, the sales administrators (and there are currently six) will produce a Quotation report which details the duration of any manufactured goods, delivery details, details of ordered goods and any special requirements. The sales administrator will also determine the full cost of manufactured furniture and pull the costing to include labour costs and expected completion and delivery dates.

Manufactured goods order is taken separately from pre-prepared goods by the Specialist Team over the phone. Payments for orders are made in full once a delivery date is arranged and goods delivery. An invoice printed by the warehouse team is given to the customer with the goods when they are delivered. Payment is made within 28 days of delivery for all customers in full.

OES has a fleet of 10 drivers who are assigned to deliver based on their availability. Delivery schedules are produced by Jamie Knight (Transport Manager) on a weekly basis. She reports to Raj Kang.

Question 1
a. Develop a Use Case Diagram to show the required functionality.
b. Develop a class diagram for the required system complete with classes, attributes, operations, associations, association names and multiplicities
c. For one use case in your answer to question 1a, develop a fully use case documentation

Question 2
Define and discuss what type of business OES is, highlighting the main advantages and disadvantages of
this type of business.

Question 3
a. Develop an organisational chart for OES to include all operations and roles of people for the business both in the UK and USA.
b. Information generated by business can be used for decision making. Provide an example of the three types of management decisions that are made in OES.

Question 4
Define and explain the following terms using appropriate examples and/or diagrams
a. Inheritance
b. Aggregation
c. Composition
d. Includes

Question 5
a. Who are the main stakeholders in an information system and what are their individual priorities?
b. Describe the role and responsibility of two people who are involved in systems development within a waterfall methodology.