Select the radio button corresponding to your choice of answer for each question, and then click on "Submit Answers" to find out how many you answered correctly.
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1 | |
Which of the following are elements of a data flow diagram?
- External entities
- Attributes
- Data flows
- Processes
- Data stores
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| | A) | All of them |
| | B) | None of them |
| | C) | 1 and 2 |
| | D) | 1,3 4 and 5 |
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2 | |
The top level data flow diagram is known as: |
| | A) | the level 1 diagram |
| | B) | the overview diagram |
| | C) | the system diagram |
| | D) | the context diagram |
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3 | |
If a level 2 process 2.1 is expanded to level 3, the sub-processes are labelled: |
| | A) | 2.1a, 2.1b, 2.1c etc. |
| | B) | 2.1.1, 2.1.2, 2.1.3 etc. |
| | C) | 3.1.1, 3.1.2, 3.1.3 etc. |
| | D) | 2.1(i), 2.1(ii), 2.1(iii) etc. |
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4 | |
In data flow diagrams the rule that states that the data flows entering or leaving a parent diagram must be equivalent to those on the child diagram is called: |
| | A) | the balancing rule |
| | B) | the data flow rule |
| | C) | the levelling rule |
| | D) | the ancestor rule |
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5 | |
Which of the following are modelled by data flow diagrams?
- The sequence in which processes occur
- The time intervals at which processes occur
- Detail about the structure of data flows or data stores
- How often a process is repeated
- Conditions governing the occurrence of certain events
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| | A) | All of them |
| | B) | 1, 3 and 5 |
| | C) | None of them |
| | D) | 2 and 4 |
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6 | |
The statements (a) – (d) below all refer to Figure 4.2 in Chapter 4 of the book. Which statement is correct? |
| | A) | Prices are stored in the Orders data store |
| | B) | All orders are stored in the Orders data store |
| | C) | Valid , unpriced orders are stored in the Orders data store |
| | D) | Valid, priced orders are stored in the Orders data store |
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7 | |
The statements (a) – (d) below all refer to Figure 4.2 in Chapter 4 of the book. Which statement correctly completes the following sentence? The process Agree customer orders needs information from: |
| | A) | the customer only |
| | B) | the Product Information data store only |
| | C) | the Product Information and the Orders data stores |
| | D) | the Product information data store and the customer |
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8 | |
The statements (a) – (d) below all refer to Figure 4.22 in Chapter 4 of the book. Which statement is correct? |
| | A) | Confirmation of delivery comes from the Keep accounts process to the supplier |
| | B) | Information about stock levels comes in and out of the ProductInformation data store |
| | C) | The Keep accounts process gets all the information it needs from the Orders data store and the Order stock process |
| | D) | The Order stock process sends information to the supplier, the Orders data store, the ProductInformation data store and the Keep Accounts process |
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9 | |
The statements (a) – (d) below all refer to Figure 4.23 in Chapter 4 of the book. Which statement correctly completes the following sentence? The process Produce invoice needs information from: |
| | A) | the Product data store and the Record order process |
| | B) | the Product and Customer data stores and the Maintain customer process |
| | C) | the Customer, Product and Order data stores only |
| | D) | the Customer, Product and Order data stores and the Record order process |
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10 | |
The statements (a) – (d) below all refer to Figure 4.30 in Chapter 4 of the book. Which statement is correct? |
| | A) | The only output from the process Handle stock requirements is the requisition list |
| | B) | The process Handle stock requirements gets information from the Roundsman’s book and the Roundsman’s notebook data stores |
| | C) | The process Handle stock requirements gets information from the Roundsman’s book and the Maintain customer accounts process |
| | D) | The outputs from the process Handle stock requirements are the requisition list, the amountLoaded and stockInHand |
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11 | |
Pick the answer that correctly completes the sentence below. Process definitions: |
| | A) | describe lowest-level processes on a data flow diagram |
| | B) | execute a specification |
| | C) | describe each process on a data flow diagram |
| | D) | describe significant data flows |
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12 | |
Which of the following are forms of process definition?
- Structured English
- Decision trees
- Decision tables
- Data flow diagrams
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| | A) | All of them |
| | B) | None of them |
| | C) | 1,2, and 3 |
| | D) | 1 and 4 |
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13 | |
The case construct in a process definition is used: |
| | A) | to express a decision between more than two alternatives |
| | B) | to provide a framework for the process definition |
| | C) | to express repetition |
| | D) | to express sequence |
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14 | |
You will see below: (1) a natural language description of the way a company calculates delivery or postage and packing charges on orders; (2) a structured English process definition; (3) a decision tree.  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::_::/sites/dl/free/0077099745/63750/ch04_14q.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">_ (4.0K)</a>]]>_
With reference to the natural language description, the structured English and the decision tree, which of the following statements is correct? |
| | A) | The natural language, the structured English and the decision tree all say the same thing |
| | B) | They are all different |
| | C) | The natural language and the structured English are the same, but the decision tree is different |
| | D) | The natural language and the decision tree are the same, but the structured English is different |
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