question

1. A model is a representation of reality

answer

True

question

2. Logical models show what a system is or does. They are implementation independent.

answer

True

question

3. Logical models show how a system is implemented.

answer

False

question

4. Physical models show not only what a system is or does, but also how the system is physically and technically implemented. They are implementation independent because they specify the technology.

answer

False

question

5. Logical models show not only what a system is or does, but also how the system is implemented.

answer

False

question

7. A data flow diagram (DFD) is a tool that depicts the flow of data through a system and the work or processing performed by that system.

answer

True

question

8. An entity relationship diagram (ERD) is a tool that depicts the flow of data through a system and the work or processing performed by that system.

answer

False

question

9. A data flow diagram is a process model.

answer

True

question

10. Another name for the data flow diagram is an entity relationship diagram.

answer

False

question

11. In a data flow diagram, rounded rectangles are used to represent processes.

answer

True

question

12. In a data flow diagram, squares are used to represent external agents - the boundary of the system.

answer

True

question

13. In a data flow diagram, rounded rectangles are used to represent external agents - the boundary of the system.

answer

False

question

14. Data flow diagrams have found new use in business process redesign.

answer

True

question

15. A process is work performed on, or in response to, incoming data flows or conditions. A synonym is transform.

answer

True

question

17. In data flow diagrams, open-ended boxes represent data stores.

answer

True

question

18. In data flow diagrams, open-ended boxes represent external agents.

answer

False

question

19. In data flow diagrams, arrows represent data flows.

answer

True

question

20. A system is a process.

answer

True

question

21. If data modeling is done before process modeling, the agents on the DFD can be pulled from the entity relationship diagram.

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False

question

22. The use of logical models reduces the risk of missing business requirements.

answer

True

question

23. Data Flow Diagrams are a kind of flowchart.

answer

False

question

24. A complex system is usually easy to understand when viewed as a whole.

answer

False

question

25. Decomposition is the act of breaking a system into component subsystems, processes and subprocesses.

answer

True

question

27. In systems analysis, decomposition allows you to partition a system into logical subsystems of processes for improved communication, analysis and design.

answer

True

question

28. A decomposition diagram is also called a hierarchy chart.

answer

True

question

29. A data flow diagram shows the top down functional decomposition and structure of a system.

answer

False

question

30. A decomposition diagram is a tool that depicts the flow of data through a system and the work or processing performed by that system.

answer

False

question

31. A hierarchy chart is another name for a decomposition diagram.

answer

True

question

32. A decomposition diagram is essentially a planning tool for more detailed process models, namely, data flow diagrams.

answer

True

question

33. Logical processes are work or actions that must be performed no matter how you implement the systems.

answer

True

question

34. Physical processes are work or actions that must be performed no matter how you implement the systems.

answer

False

question

35. Each logical process must be implemented in software.

answer

False

question

37. An event is a logical unit of work that must be completed as a whole.

answer

True

question

38. An event is a logical unit of work that can be completed in parts over time.

answer

False

question

39. An event is triggered by a discrete input and is completed when the process has responded with the appropriate outputs.

answer

True

question

40. An event is triggered by a discrete output that is completed when the process has responded with the appropriate inputs.

answer

False

question

41. Events are sometimes called transactions.

answer

True

question

42. A function is a unit of work that must be completed as a unit or whole.

answer

False

question

43. Elementary processes are discrete, detailed activities or tasks required to complete the response to an event.

answer

True

question

44. Elementary processes are the overall activities to be accomplished by a system.

answer

False

question

45. Elementary processes are at the highest level of detail when depicted in a process model.

answer

False

question

47. Primitive processes are the lowest level of detail when depicted in a process model.

answer

True

question

48. A black hole is a process that has inputs but no outputs.

answer

True

question

49. A black hole is an acceptable elementary process.

answer

False

question

50. Gray holes can be caused by a misnamed process.

answer

True

question

51. A gray hole is a process where the inputs are insufficient to produce the desired outputs.

answer

True

question

52. A data store represents data in motion.

answer

False

question

53. A logical process can perform computations.

answer

True

question

54. A logical process can make decisions.

answer

True

question

55. A logical process can trigger other processes.

answer

True

question

57. Structured English is a language and syntax, based on the relative strengths of structured programming and natural English, for specifying the underlying logic of elementary processes on process models such as data flow diagrams.

answer

True

question

58. An iteration structure specifies that a set of steps should be repeated based on some stated condition.

answer

True

question

59. A repetition structure specifies that a set of steps should be repeated based on some stated condition.

answer

True

question

70. In Structured English, when in doubt, user readability should take priority over programmer preferences.

answer

True

question

71. Structured English should be precise enough to clearly specify the required business procedure to a programmer or user. But it should not be so inflexible that you spend hours arguing over syntax.

answer

True

question

72. Structured English is very precise and requires a strict adherence to syntax rules so that it can be translated for specifications to programming code directly.

answer

False

question

73. Simple condition steps can be translated into programming language as a For loop.

answer

False

question

74. A policy is a set of rules that governs some process in the business.

answer

True

question

75. Both decision tables and Structured English can describe a single elementary process.

answer

True

question

77. A decision table is expressed in Structured English to facilitate the presentation of policies and processes using a single technique.

answer

False

question

78. Decision tables are useful for specifying complex policies and decision-making rules.

answer

True

question

79. The three components of a decision table are: condition stubs, action stubs and rules.

answer

True

question

80. The three components of a decision table are: entities, relationships and attributes.

answer

False

question

81. A data flow represents an input of data to a process or the output of data from a process.

answer

True

question

82. Composite data flows are used to combine similar data flows on high-level data flow diagrams to make those diagrams easier to read.

answer

True

question

83. A composite data flow is a data flow that consists of other data flows.

answer

True

question

84. A compound data flow is a data flow that consists of other data flows.

answer

False

question

85. A data flow is composed of either actual data attributes (also called data structures) or other data flows.

answer

True

question

87. A control flow represents a condition or non-data event that triggers a process.

answer

True

question

88. A control flow is a special data flow that has both inputs and outputs.

answer

False

question

89. Data conservation requires that a data flow contain only the data that is truly needed by the receiving process.

answer

True

question

90. Data conservation requires that a data flow contain the entire data entity with all its attributes that is requested by a process.

answer

False

question

91. By ensuring that processes receive the entire entity and its attributes, we plan for future processing requirements to improve the implementation and maintenance of processes.

answer

False

question

92. A data attribute is the smallest piece of data that has meaning to the end users and the business.

answer

True

question

93. The concept of a data attribute is different when drawing data models versus process models.

answer

False

question

94. Data structures are non-specific arrangements of data that define data in a data store.

answer

False

question

95. The data type for an attribute defines what class of data can be stored in that attribute.

answer

True

question

97. The domain of an attribute defines what values an attribute can legitimately take on.

answer

True

question

98. Data flows can be described in terms of the following types of data structures: a sequence or group of data attributes that occur one after another; the selection of one or more attributes from a set of attributes; and, the repetition of one or more attributes.

answer

True

question

99. A data flow can connect an agent to a data store.

answer

False

question

100. A data flow can connect pass data directly from one data store to another data store.

answer

False

question

101. A diverging data flow is one that splits into multiple data flows.

answer

True

question

102. A converging data flow is one that merges multiple data flows into a single data flow.

answer

True

question

103. A diverging data flow is one that merges multiple data flows into a single data flow.

answer

False

question

104. An external agent defines a person, organization unit, other system or other organization that lies outside the scope of the project but that interacts with the system being studied.

answer

True

question

105. An external agent defines a person or organizational unit that is part of the scope of the project, but has no interaction with the system being studied.

answer

False

question

107. A synonym for external entity is data entity.

answer

False

question

108. A data store is an inventory of data. Synonyms include file and database.

answer

True

question

109. Data flows are data in motion; data stores are data at rest.

answer

True

question

110. Data stores are data in motion, and data flows are data at rest.

answer

False

question

111. An enterprise process model typically identifies business areas and functions in detail. Events and detailed processes are made explicit.

answer

False

question

112. Event partitioning factors a system into subsystems based on business events and responses to those events.

answer

True

question

113. Event partitioning factors a system into different databases based on how information is used and where it is stored.

answer

False

question

114. A system context diagram is constructed to establish initial project scope.

answer

True

question

115. A system context diagram partitions the system into logical subsystems.

answer

False

question

117. An event response or use case list is compiled to identify and confirm the business events to which the system must provide a response.

answer

True

question

118. An event response list is compiled to partition the system into logical subsystems and/or functions.

answer

False

question

119. After an event handler is added to the decomposition diagram for each event, the decomposition diagram can now serve as the outline for the system.

answer

True

question

120. After an event handler is added to the decomposition diagram for each event, you now have the event response diagram that is used as the outline for the system.

answer

False

question

121. The context diagram is constructed for event processes that require additional processing details. These data flow diagrams include all the elementary processes, data stores and data flows for single events.

answer

False

question

122. A context data flow diagram defines the scope and boundary for the system and project.

answer

True

question

123. External events are so named because they are initiated by external agents.

answer

True

question

124. Temporal events trigger processes on the basis of time, or something that merely happens.

answer

True

question

125. State events trigger processes based on a system's change from one state or condition to another.

answer

True

question

127. Use case analysis is the process of identifying and modeling business events, who initiated them, and how the system responds to them.

answer

True

question

128. Use case analysis is rooted in object-oriented analysis.

answer

True

question

129. Use case analysis is the process of identifying the actors who interact and use a system independent of how they are using the system.

answer

False

question

130. An event diagram is a composite diagram that combines multiple events into a single processing unit.

answer

False

question

131. For each use case we need to list: 1) the actor initiating the event; (2) the event; (3) the input or trigger for the event; (4) all outputs and responses.

answer

True

question

132. Balancing is the synchronizing of data flow diagrams at different levels of detail to preserve consistency and completeness of the models.

answer

True

question

133. Balancing is a quality assurance technique used on data flow diagrams.

answer

True

question

134. Balancing is a quality assurance technique used on entity relationship diagrams.

answer

False

question

135. Data and process models represent different views of the same system.

answer

True

question

137. A process-to-location matrix is a table in which the rows indicate processes (event or elementary processes); the columns indicate locations; and the cells (the intersections of rows and columns) document which processes must be performed at which locations.

answer

True

question

138. A process-to-location-CRUD matrix is a table that indicates which processes create, read, update or delete data information at the various locations and data stores.

answer

False

question

139. Process models illustrate the essential work to be performed by the system as a whole.

answer

True

question

140. Data models illustrate the essential work to be performed by the system as a whole.

answer

False

question

141. Processes must be distributed to locations where work is to be performed.

answer

True

question

142. A model that shows what a system is and what is does is: A) a physical model B) a logical model C) a context model D) both a physical and logical model E) none of these

answer

both a physical and logical model

question

143. A model that shows what a system is and what it does, as well as how it does it, is: A) a physical model B) a logical model C) a context model D) both a logical and physical model E) none of these

answer

a physical model

question

144. A technique for organizing and documenting the structure and flow of data through a system's processes and or the logic, policies and procedures to be implemented by a system's processes is known as: A) data modeling B) process modeling C) context modeling D) operational modeling E) none of these

answer

process modeling

question

145. A tool that depicts the flow of data through a system and the work or processing performed by that system is known as: A) entity relationship diagrams B) decomposition, structure diagrams C) data flow diagrams D) use case diagrams E) none of these

answer

data flow diagrams

question

147. In data flow diagrams: A) processes are represented by rounded rectangles B) data flows are represented by arrows C) data stores are represented by open-ended boxes D) external agents are represented by squares E) all of these

answer

all of these

question

148. In data flow diagrams: A) processes are represented by open-ended boxes B) data flows are represented by arrows C) data stores are represented by squares D) external agents are represented by rounded rectangles E) none of these

answer

data flows are represented by arrows

question

149. In data flow diagrams: A) processes are represented by squares B) data flows are represented by open-ended boxes C) data stores are represented by arrows D) external agents are represented by rounded rectangles E) none of these

answer

none of these

question

150. Logical models: A) remove biases that are not the result of the way the current system is implemented B) reduce the risk of missing business requirements C) communicate with end users in nontechnical or less technical languages D) all of the above E) none of these

answer

all of the above

question

151. A process: A) is a common word used to describe almost any orderly arrangement of ideas or constructs B) is work performed on, or in response to, incoming data flows or conditions C) is only performed by computer software D) is comprised of many systems and subsystems E) none of these

answer

is work performed on, or in response to, incoming data flows or conditions

question

152. The act of breaking a system into its component subsystems, processes and subprocesses is known as: A) generalization B) normalization C) composition D) decomposition E) none of these

answer

decomposition

question

153. A diagram that shows the system broken into its component sybsystems: A) a data flow diagram B) an entity relationship diagram C) a decomposition diagram D) functional event diagram E) none of these

answer

a decomposition diagram

question

154. A set of related and ongoing activities in a business is known as: A) a function B) a database C) a system D) an event E) none of these

answer

a function

question

155. A logical unit of work that must be completed as a whole is known as: A) a function B) a data store C) an event D) a trigger E) none of these

answer

an event

question

157. A process that has inputs but no outputs is known as: A) a black hole B) a gray hole C) a miracle D) both a miracle and a black hole E) none of these

answer

a black hole

question

158. Gray holes are caused by: A) a misnamed process B) misnamed inputs C) incomplete facts D) all of the above E) none of these

answer

incomplete facts

question

159. A process that has inputs insufficient to produce the required outputs is known as: A) a black hole B) a gray hole C) a miracle D) a miracle and a gray hole E) none of these

answer

a gray hole

question

170. A(n) _________________________________ is a tool that depicts the flow of data through a system and the work or processing performed by that system.

answer

data flow diagram (DFD)

question

171. Another name for the data flow diagram is _____________________ model.

answer

process

question

172. In a data flow diagram, rounded rectangles are used to represent _____________________.

answer

processes

question

173. In a data flow diagram, squares are used to represent ________________________.

answer

external agents

question

174. Transform is a synonym for a ________________________.

answer

process

question

175. A(n) _________________________ is work performed on, or in response to, incoming data flows or conditions.

answer

process

question

177. In data flow diagrams, arrows represent___________________________ .

answer

data flows

question

178. A _______________________ is when the inputs are insufficient to produce the output.

answer

gray hole

question

179. __________________________________ is the act of breaking a system into component subsystems, processes and subprocesses.

answer

Decomposition

question

180. During decomposition, each level of ____________________________ reveals more or less detail as desired, about the overall system or a subset of that system.

answer

abstraction

question

181. In systems analysis, ___________________________ allows you to partition a system into logical subsystems of processes for improved communication, analysis and design.

answer

decomposition

question

182. A ___________________________ diagram shows the top down functional decomposition and structure of a system.

answer

decomposition

question

183. A(n) ____________________________ is another name for a decomposition diagram.

answer

hierarchy chart

question

184. A decomposition diagram is essentially a planning tool for more detailed process models, namely, _________________________________________.

answer

data flow diagrams

question

185. ________________ processes are work or actions that must be performed no matter how you implement the systems.

answer

Logical

question

187. A(n) ___________________________ is a logical unit of work that must be completed as a whole

answer

event

question

188. An event is triggered by a discrete _______________________ and is completed when the process has responded with the appropriate __________________________.

answer

input, outputs

question

189. ___________________________________ processes are discrete, detailed activities or tasks required to complete the response to an event.

answer

Elementary or Primitive

question

190. Another name for an elementary process is a ____________________________ process.

answer

primitive

question

191. Elementary processes are the _________________ level of detail when depicted in a process model.

answer

lowest

question

192. A(n) _____________________ is a process that has inputs but no outputs.

answer

black hole

question

193. A data flow is data in ____________________________.

answer

motion

question

194. A __________________________ is when a process has inputs but no outputs.

answer

black hole

question

195. _____________________________________ is a language and syntax, based on the relative strengths of structured programming and natural English, for specifying the underlying logic of elementary processes on process models such as data flow diagrams.

answer

Structured English

question

197. A(n) ____________________________ structure specifies that a set of steps should be repeated based on some stated condition.

answer

iteration or repetition

question

198. A(n) __________________________________ structure specifies that a process must perform different steps under well-specified conditions.

answer

conditional or decision

question

199. _____________________________ sentences use strong actions verbs such as Get, Find, Record, Create, Read, Update, Delete, Calculate, Write, Sort, Merge or anything else recognizable or understandable to end users.

answer

Sequence

question

200. A restriction of Structured English is that only ________________________ verbs may be used.

answer

strong, imperative

question

201. _________________________________ should be used in Structured English to set off the beginning and ending of constructs to enhance readability.

answer

Blocking and indentation

question

202. A(n) _______________________ is a set of rules that governs some process in the business.

answer

policy

question

203. A(n) _______________________________ is a tabular form of presentation that specifies a set of conditions and their corresponding actions.

answer

decision table

question

204. The three components of a decision table are: (1) _____________________________________ (2) _____________________________________ and (3) ______________________________________.

answer

condition stubs, action stubs and rules.

question

205. A(n) ________________________________ represents an input of data to a process or the output of data from a process.

answer

data flow

question

207. The _______________________ concept is critical to the creation of data flow diagrams. Data that should travel together should be shown as a single data flow, no matter how many physical documents or attributes are included in the data flow.

answer

packet

question

208. A(n) _________________________ flow represents a condition or non-data event that triggers a process.

answer

control

question

209. Data _______________________________ requires that a data flow contain only the data that is truly needed by the receiving process.

answer

conservation

question

210. By ensuring that processes receive only as much data as they really need, we simplify the __________________________ between those processes.

answer

interface

question

211. Data ______________________ are specific arrangements of data attributes that define the organization of a single instance of a data flow.

answer

structures

question

212. The ___________________ for an attribute defines what class of data can be stored in that attribute.

answer

data type

question

213. The ___________________________ of an attribute defines what values an attribute can legitimately take on.

answer

domain

question

214. A(n) ____________________ data flow is one that splits into multiple data flows.

answer

diverging

question

215. A(n) ______________________________ defines a person, organization unit, other system or other organization that lies outside the scope of the project but that interacts with the system being studied.

answer

external agent or external entity

question

217. Data _____________________ are data in motion; data _________________ are data at rest.

answer

flows, stores

question

218. A(n) __________________________ process model typically identifies only business areas and functions. Events and detailed processes are rarely examined.

answer

enterprise

question

219. _________________________ events trigger processes on the basis of time.

answer

Temporal

question

220. A(n) _____________________________________ is constructed to establish initial project scope.

answer

system context diagram

question

221. Data conservation is sometimes called _____________________ the process.

answer

starving

question

222. A(n) ________________________________ is compiled to identify and confirm the business events to which the system must provide a response.

answer

event response or use case list

question

223. _______________________________ diagrams are constructed for those event processes that require additional processing details. These data flow diagrams include all the elementary processes, data stores and data flows for single events.

answer

Primitive or Elementary

question

224. A(n) ______________________________________ defines the scope and boundary for the system and project.

answer

context data flow diagram

question

225. Examples of _________________ include END OF MONTH, and 30 DAYS LATE.

answer

temporal events

question

227. ____________________________ is the process of identifying and modeling business events, who initiated them, and how the system responds to them.

answer

Use case analysis

question

228. A(n) _______________________________ is a context diagram for a single event. It shows the inputs, outputs and data store interactions for that event.

answer

event diagram

question

229. For each use case we need to list: (1) ___________________________________________________ (2) ___________________________________________________ (3) ___________________________________________________ and (4) ___________________________________________________.

answer

1) the actor initiating the event; (2) the event; (3) the input or trigger for the event; (4) all outputs and responses.

question

230. ___________________________________ is the synchronizing of data flow diagrams at different levels of detail to preserve consistency and completeness of the models.

answer

Balancing

question

231. Balancing is a quality assurance technique used on ______________________ diagrams.

answer

data flow

question

232. A(n) __________________________________ is a table in which the rows indicate processes (event or elementary processes); the columns indicate locations; and the cells (the intersections of rows and columns) document which processes must be performed at which locations.

answer

process-to-location matrix

CS 682 Chapter 9 – Flashcards

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