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A. News system

B. Market trading system

C. Trading customer

D. Broker

E. Scheduler

A. A set of possible dialogs that can occur between the system and one or more actors

B. A description of the path the user takes through the use case and the data that is exchanged

C. An ordered set of flows from the start of the use case to one of its end points

D. A specific dialog that can occur between the system and a particular actor

A. The state of the system before a use case can start is important

B. The use case report has a property for pre-conditions

C. The first event in the flow of events is a non-functional requirement

D. Another use case extends the use case

A. Non-functional requirements associated with the entire system

B. Non-functional requirements associated with a particular use case

C. Use-case diagram for the entire system

D. <<include>> and <<extend>> relationships associated with a particular use case

A. Begin the specification of a use case

B. Identify special requirements of a use case

C. Represent the use-case diagram in text form

D. Understand the size and scope of a use case

A. Basic flow

B. In-line conditional behavior

C. Scenario

D. Alternative flow

A. What goal will actors achieve by using the system?

B. Why is data being stored in the system?

C. What do users need to know when they use the system?

D. What subsystems are in the software?

A. Additional changes arising from changing a requirement

B. How to alter the text of changed requirements

C. Links between features and software requirements

D. Impact of a problem on an organization