Question 2

(a) In the new website, a facility is offered to pay (or part-pay) an invoice. Write the elaborated use case for this.

(b) Draw an Activity Diagram modelling all the typical flow of activities and the exception condition(s) identified for the use case in Question 2 (a).

The Pergola Man The Pergola Man operates in the northern suburbs of Perth, building pergolas and gazebos for privat customers. When a customer approaches him, he visits their house, takes measurements and then discusse possible pergolas or gazebos which might interest the customer. As a result of this discussion, the Persol Man sends the customer a detailed quotation (see below). The customer may or may not accept th quotation. In due course the customer is sent an invoice for the work done. The Pergola Man allows part payments over six months in order to encourage more business. As a result of this duts and then discusse abion (see below). The Pergola Man is considering creating a website as a means of attracting new customers. He anticipate the website will allow customers to browse examples of his work, browse company details including likel prices and timescales, email him with a request for a visit and permit (part-)payment of invoices Quotation The Pergola Man Quotation-no: 1 Customer-no: Customer-name: Customer-address: 1234 A Punter 100 Wanneroo Road Construction-type: Construction-description: "P Pergola Materials: Mat-no Description No-off Unit-cost 2012 WP-2000 JT-3000 PS-3000 MT-STD Wooden Post 2m x 200cm x 20cm Wooden Joist 3m x 20cm x 20cm Plastic Sheeting 3mx lm Mountings plastie 10 5 sub total Labour No-hours 40 total 1700