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Software System Develoment: A Gentle Introduction, 3/e

Carol Britton, University of Hertfordshire
Jill Doake, Anglia Polytechnic University

Ch 5 Self-test Questions


1	A data dictionary is:
		A)	a calendar of milestones for the development project
		B)	a structured modelling technique which uses text and a small set of symbols to define the data in the system
		C)	a technique of building representations of a system based on the data objects that are found in it
		D)	a technique used in process definitions in which different conditions and actions are laid out like a dictionary


2	Which of the following are benefits of using a data dictionary? It ensures that the system satisfies the client's requirements Other models are free from clutter Definitions of system data are held in a central store Labels on other models can be cross-referenced to the data dictionary It facilitates consistency between models
		A)	All of them
		B)	1, 2 and 3
		C)	2,3,4 and 5
		D)	1,2,3 and 4


3	In data dictionary notation { } indicates:
		A)	repetition
		B)	optionality
		C)	sequence
		D)	selection


4	In data dictionary notation + indicates:
		A)	repetition
		B)	optionality
		C)	sequence
		D)	selection


5	In data dictionary notation ( ) indicates:
		A)	repetition
		B)	optionality
		C)	sequence
		D)	selection


6	The statements a - d below refer to the following data dictionary entry. Which one of the statements is correct? CustomerOrder = customerName + address + {newspaper + {dayOfTheWeek}}
		A)	A customer can only have one newspaper on one day of the week
		B)	A customer can have any number of newspapers on only one day of the week
		C)	A customer can have any number of newspapers on any day of the week
		D)	A customer can have one newspaper only on any day of the week


7	The statements a - d below refer to the following data dictionary entry. Which one of the statements is correct? Course = name + code + (subjectArea) + {lecturer} + ["Semester A" \| "Semester B" \| "Semesters A&B"] + creditValue
		A)	A course does not have to have a lecturer
		B)	A course can belong to a number of subject areas
		C)	A course does not have to have a subject area
		D)	A course does not have to have a name


8	The statements a - d below refer to the following data dictionary entry. Which one of the statements is correct? House = address + sellerName + price + [detached \| semi \| terraced] + numberOfBedrooms + numberOfReception + (size of garden) + {specialFeature}
		A)	A house must be either detached or semi-detached or terraced
		B)	A house must have a garden
		C)	A house must have at least 1 reception room
		D)	A house must have lots of special features

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