Software Engineering

The department of public works for a large city has decided to develop a Web

-

based pothole tracking and

repair system (PHTRS). A description follows:

Citizens can log onto a website and report the location and severity of potholes. As potholes are

reported they are logged within a public works department repair system and are assigned an

identifying number, stored by street address, size (on a scale o

f 1 to 10), location (middle, curb,

etc.), district (determined from street address), and repair priority (determined from the size of the

pothole). Work order data are associated with each pothole and include pothole location and

size, repair crew identif

ying number, number of people on crew, equipment assigned, hours

applied to repair, hole status (work in progress, repaired, temporary repair, not repaired), amount

of filler material used, and cost of repair (computed from hours applied, number of people,

material and equipment used). Finally, a damage file is created to hold information about

reported damage due to the pothole and includes citizen's name, address, phone number, type of

damage, and dollar amount of damage. PHTRS is an online system; all qu

eries are to be made

interactively.

Draw a UML use case diagram PHTRS system. You'll have to make a number of assumptions

about the manner in which a user interacts with this system.

Write two

use cases that describe the roles of various acto

rs in the PHTRS

.

Draw a class diagram based on the above requirements.