Exam 8: Data Flow Diagramming

Refer to the Level Zero data flow diagram below and the CWM case in responding to the question: Comprehensive Waste Management (CWM) provides trash hauling services for several communities in southern California.When a new client wants to establish service, the client calls the company's main office on the phone.A CWM employee collects the following information from the client: name, street address, city, state, ZIP code, area code, telephone number, e-mail address.The employee gives the new client information regarding regular weekly service dates, special services provided by the company, fees and billing procedures.CWM bills its clients every two months in advance of the service; for example, bills are sent to clients at the beginning of January for the months of January and February.Initially, CWM does all its billing manually; they send out paper bills and collect payment from clients via check.Once service is established, a client can create an online account; the online account provides an option for paperless billing and a separate option for charging a credit card rather than paying with a mailed check.To create an online account, the client creates login credentials (user name and password); they provide their CWM account number (provided on the invoice) and relevant credit card data (type of card, name, billing address, and security code).CWM's database uses the account number to look up the client's original information, then merges the new information with it. Which of the following statements about the Level Zero data flow diagram is most true?

Which of the following is most likely to be represented with a rectangle in a data flow diagram?

Consider the following illustration as you respond to the questions: The illustration would best be described as:

Suppose a leveled set of data flow diagrams incorporates the levels indicated below.Specify how processes would be numbered at each level.

Data flow diagrams can be used for: (i) completing the steps in the accounting cycle, (ii) making business processes more efficient and effective, (iii) completing one or more steps of the systems development life cycle.

Data flow diagrams incorporate four symbols.List the symbols; for each one, give two examples of how it might be used in a DFD.

Consider the following illustration as you respond to the questions: Is Diagram X balanced with Diagram Y?

The Festival Theatre produces twelve plays per year.Patrons can buy tickets for a single play; alternatively, they can purchase a season pass for either three plays or six plays.Three-play passes offer a 10% discount from the prices of single tickets; six-play passes, a 25% discount.Since most patrons live within 30 miles of the theatre, all ticket sales are done at the box office only.The theatre has an "open seating" plan, so patrons do not reserve a specific seat at any performance.Data flow diagrams incorporate four types of symbols.Give one example of each symbol you would expect to find in a Level Zero data flow diagram of the preceding process.(You do not need to create the actual DFD.)

Booksellers of Bufluffia is a small, independent bookstore that both publishes and sells very specialized titles.They currently have about 50 clients; they publish and sell 30 different books at present.The company's management has asked you to create database tables to support their operations.If the database includes a sales/inventory junction table, its primary key is most likely to be:

For which of the following tasks would a data flow diagram be appropriately used in AIS work?

Consider the following illustration as you respond to the questions: The most appropriate label for Symbol A is:

Please refer to the following short case as you respond to the question: A painter accepts orders for original works from customers in person or via the Internet.Based on the order, the painter creates an initial sketch, which must be approved by the customer; the customer may make changes to the initial sketch.After customer approval, the painter selects appropriate materials and gives the customer a price quote.If the customer accepts the price quote, the painter creates the original work; if not, the project is abandoned.The painter stores data about customers, previous orders and previously completed works in an electronic database.In a data flow diagram of the case, "create initial sketch" is most likely to be represented with a:

Please refer to the following short case as you respond to the question: A painter accepts orders for original works from customers in person or via the Internet.Based on the order, the painter creates an initial sketch, which must be approved by the customer; the customer may make changes to the initial sketch.After customer approval, the painter selects appropriate materials and gives the customer a price quote.If the customer accepts the price quote, the painter creates the original work; if not, the project is abandoned.The painter stores data about customers, previous orders and previously completed works in an electronic database.A data flow diagram of the case includes two circles connected by a line.The three symbols are most likely to be labeled with which of the following?

Pablo had been asked by his supervisor to create a document explaining the process of paying an invoice.If he wants to create a diagram that focuses on data, he could create:

Please refer to the following case as you answer the question: Comprehensive Waste Management (CWM) provides trash hauling services for several communities in southern California.When a new client wants to establish service, the client calls the company's main office on the phone.A CWM employee collects the following information from the client: name, street address, city, state, ZIP code, area code, telephone number, e-mail address.The employee gives the new client information regarding regular weekly service dates, special services provided by the company, fees and billing procedures.CWM bills its clients every two months in advance of the service; for example, bills are sent to clients at the beginning of January for the months of January and February.Initially, CWM does all its billing manually; they send out paper bills and collect payment from clients via check.Once service is established, a client can create an online account; the online account provides an option for paperless billing and a separate option for charging a credit card rather than paying with a mailed check.To create an online account, the client creates login credentials (user name and password); they provide their CWM account number (provided on the invoice) and relevant credit card data (type of card, name, billing address, and security code).CWM's database uses the account number to look up the client's original information, then merges the new information with it.Assume CWM wants no more than three processes shown on its Level Zero data flow diagram.All of the following are likely to be processes except:

Specify the data flow diagram symbol that would be used to represent each item in the list below. a.Bank b.Check c.Disburse cash d.Inventory master file e.Purchase/inventory file f.Purchase inventory g.Purchase order h.Vendor i.Vendor file j.Vendor invoice

Accounting information systems have five generic elements.A data flow diagram would be least helpful for which of the five?

Please refer to the following short case as you respond to the question: A painter accepts orders for original works from customers in person or via the Internet.Based on the order, the painter creates an initial sketch, which must be approved by the customer; the customer may make changes to the initial sketch.After customer approval, the painter selects appropriate materials and gives the customer a price quote.If the customer accepts the price quote, the painter creates the original work; if not, the project is abandoned.The painter stores data about customers, previous orders and previously completed works in an electronic database.A data flow diagram of the case contains three items: create initial sketch, initial sketch, finalize sketch.How are those three items likely to be represented in the data flow diagram?

Please refer to the data flow diagram below in answering the question: In the next level of data flow diagrams, Process 3.1 is most likely to be labeled:

Consider the following illustration as you respond to the questions: The most appropriate label for Symbol C is: