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computer science
systems analysis and design 12th

Questions and Answers of Systems Analysis And Design 12th

Match each of the key terms with the definition that best fits it._______________ A formal method for designing and representing human-computer dialogues using box and line diagrams.Here are the key
Discuss the various ways that information can be highlighted on a computer display. Which methods are most effective? Are some methods better than others? If so, why and when?
As the lead analyst for the Hoosier Burger project, you have worked closely with Bob and Thelma Mellankamp. Having completed the systems analysis phase, you are now ready to begin designing the new
Match each of the key terms with the definition that best fits it._______________ A business document that contains only predefined data; it is a passive document used only for reading or viewing;
What problems can occur if a system fails to provide clear feedback and error messages to users?
Pet owners often have difficulty locating petsitters for their pets, boarding their pets, or just getting the pets to the veterinarian. Recognizing these needs, Gladys Murphy decided to open Pet
Match each of the key terms with the definition that best fits it._______________ A technique for showing users where they are in a Web site by placing a series of “tabs” on a Web page that shows
Use a search engine to find recommendations for good design of Web interfaces. How are these recommendations similar to those discussed in this chapter? How do they differ?
Match each of the key terms with the definition that best fits it._______________ The sequence of interaction between a user and a system.Here are the key terms from the chapter. The page where each
Obtain a report of some information, either from your employer (e.g., a budget or project report) or from your school (e.g., your student academic record). Evaluate the design of the report using the
Match each of the key terms with the definition that best fits it._______________ A business document that contains some predefined data and may include some areas where additional data are to be
Match each of the key terms with the definition that best fits it._______________ A record of the sequence of data entries and the date of those entries.Here are the key terms from the chapter. The
Match each of the key terms with the definition that best fits it._______________ The use of small simple images to allow a Web page to be displayed more quickly.Here are the key terms from the
Think of an online retailer you’ve recently used or considered using for a purchase. Why is good design of that retailer’s interface important for the retailer? Visit the online retailer and
Describe what is meant by a cookie crumb. How do these help prevent users from getting lost?
Describe why you might want to use lightweight graphics on some Web pages and large detailed graphics on others.
Why is it especially important to eliminate dataentry errors on an electronic commerceWeb site?
How can template-based HTML help to make a large electronic commerce site more maintainable?
During your time as a Pine Valley Furniture intern, you have learned much about the systems analysis and design process. You have been able to observe Jim Woo as he serves as the lead analyst on the
Explain the process of designing forms and reports, and the deliverables for their creation.
Apply the general guidelines for formatting forms and reports.
Format text, tables, and lists effectively.
Explain the process of designing interfaces and dialogues, and the deliverables for their creation.
Describe and apply the general guidelines for interface design, including guidelines for layout design, structuring data-entry-fields, providing feedback, and system help.
Design human-computer dialogues, including the use of dialogue diagramming.
Discuss interface design guidelines unique to the design of Internet-based electronic commerce systems.
What are the general guidelines for collecting data through observing workers?
Match each of the key terms with the definition that best fits it.____________ The official way a system works as described in organizational documentation.Here are the key terms from the chapter.
Explain business process reengineering and how it affects requirements determination.
What are the general guidelines for collecting data through analyzing documents?
Match each of the key terms with the definition that best fits it.____________ Questions in interviews and on questionnaires that have no prespecified answers.Here are the key terms from the chapter.
Suppose you are a systems analyst charged with gathering information requirements. You decide that you want to use prototyping to gather these requirements. It provides benefits beyond interviews and
Match each of the key terms with the definition that best fits it.____________ The trained individual who plans and leads joint application design sessions.Here are the key terms from the chapter.
Understand how requirements determination techniques apply to development for Internet applications.
Match each of the key terms with the definition that best fits it.____________ The structured, measured set of activities designed to produce a specific output for a particular customer or
Questionnaires can be administered both on paper and via the Internet. Online questionnaires allow for the use of complex analysis tools and real-time results. However, online questionnaires have
Compare collecting information through observation and through document analysis. Describe a hypothetical situation in which each of these methods would be an effective way to collect information
Match each of the key terms with the definition that best fits it.____________ Questions in interviews and on questionnaires that ask those responding to choose from among a set of specified
Using the example of an online cell phone apps store, list relevant data flows, data stores, processes, and sources/sinks. Draw a context diagram and a level-0 diagram that represent the apps store.
As a Pine Valley Furniture intern, you have gained valuable insights into the systems development process. Jim Woo has made it a point to discuss with you both the WebStore and the Customer Tracking
Understand the logical modeling of processes through studying examples of data-flow diagrams
Match each of the key terms listed with the definition that best fits it.___________ A graphic that illustrates the movement of data between external entities and the processes and data stores within
What is a data-flow diagram? Why do systems analysts use data-flow diagrams?
Draw data-flow diagrams following specific rules and guidelines that lead to accurate and well-structured process models.
Think and write about how data-flow diagrams might be modified to allow for time considerations to be adequately incorporated.
Match each of the key terms listed with the definition that best fits it.___________ The conservation of inputs and outputs to a data-flow diagram process when that process is decomposed to a lower
How would you answer someone who told you that data-flow diagrams were too simple and took too long to draw to be of much use? What if they also said that keeping data-flow diagrams up to date took
Evergreen Nurseries offers a wide range of lawn and garden products to its customers. Evergreen Nurseries conducts both wholesale and retail operations. Although the company serves as a wholesaler to
Decompose data-flow diagrams into lower-level diagrams.
Match each of the key terms listed with the definition that best fits it.___________ That part of a decision table that lists the conditions relevant to the decision.Here are the key terms from the
Find another example of where data-flow diagrams were successfully used to support business process reengineering. Write a report, complete with DFDs, about what you found.
Balance higher-level and lower-level dataflow diagrams.
Match each of the key terms listed with the definition that best fits it.___________ A data-flow diagram that represents a system’s major processes, data flows, and data stores at a high level of
Use data-flow diagrams as a tool to support the analysis of information systems.
Match each of the key terms listed with the definition that best fits it.___________ The origin and/or destination of data; sometimes referred to as external entities.Here are the key terms from the
What is the benefit of creating multiple levels of DFDs? Consider the concept of DFD consistency. Why is consistency important to take advantage of the multiple levels of DFDs that may be created?
Use decision tables to represent process logic.
Match each of the key terms listed with the definition that best fits it.___________ In a decision table, a condition whose value does not affect which actions are taken for two or more rules.Here
Why do you think analysts have different types of diagrams and other documentation to depict different views (e.g., process, logic, and data) of an information system?
Match each of the key terms listed with the definition that best fits it.___________ A data-flow diagram of the scope of an organizational system that shows the system boundaries, external entities
Match each of the key terms listed with the definition that best fits it.___________ The lowest level of decomposition for a data-flow diagram.Here are the key terms from the chapter. The page where
Match each of the key terms listed with the definition that best fits it.___________ The extent to which all necessary components of a data-flow diagram have been included and fully described.Here
Explain what the term DFD consistency means and provide an example.
Match each of the key terms listed with the definition that best fits it.___________ A matrix representation of the logic of a decision, which specifies the possible conditions for the decision and
Explain what the term DFD completeness means and provide an example.
Match each of the key terms listed with the definition that best fits it.___________ The extent to which information contained on one level of a set of nested data-flow diagrams is also included on
How well do DFDs illustrate timing considerations for systems? Explain your answer.
Match each of the key terms listed with the definition that best fits it.___________ A DFD that is the result of n nested decompositions of a series of subprocesses from a process on a level-0
Match each of the key terms listed with the definition that best fits it.___________ The work or actions performed on data so that they are transformed, stored, or distributed.Here are the key terms
Match each of the key terms listed with the definition that best fits it.___________ That part of a decision table that specifies which actions are to be followed for a given set of conditions.Here
A huge retail store must carefully manage its inventory levels. Stock-outs (where there is none of an item on a shelf) can cause missed sales, while too much inventory costs the company money in
Match each of the key terms listed with the definition that best fits it.___________ Data at rest, which may take the form of many different physical representations.Here are the key terms from the
Match each of the key terms listed with the definition that best fits it.___________ Graphically representing the processes that capture, manipulate, store, and distribute data between a system and
Match each of the key terms listed with the definition that best fits it.___________ The process of discovering discrepancies between two or more sets of data-flow diagrams or discrepancies within a
Match each of the key terms listed with the definition that best fits it.___________ That part of a decision table that lists the actions that result for a given set of conditions.Here are the key
In order to determine the requirements for the new Customer Tracking System, several JAD sessions, interviews, and observations were conducted. Resulting information from these requirements
Concisely define each of the following key data-modeling terms: conceptual data model, entity-relationship diagram, entity type, entity instance, attribute, candidate key, multivalued attribute,
Match each of the key terms with the definition that best fits it.___________ A graphical representation of the entities, associations, and data for an organization or business area; it is a model of
What characteristics of data are represented in an E-R diagram?
Ask the right kinds of questions to determine data requirements for an information system.
Using Table 7-1 as a guide, develop a script of at least ten questions you would ask during an interview of the customer-order processing department manager at Pine Valley Furniture. Assume the focus
Match each of the key terms with the definition that best fits it.___________ A single occurrence of an entity type.Here are the key terms from the chapter. The page where each term is first
A performance venue hosts many concert series a year. Performers have a name and perform several times in a concert series (each constituting a performance with a different date). Concert series have
Match each of the key terms with the definition that best fits it.___________ An attribute that may take on more than one value for each entity instance.Here are the key terms from the chapter. The
A restaurant chain has several store locations in a city (with a name and zip code stored for each), and each is managed by one manager. Managers manage only one store. Each restaurant location has
As the lead analyst on the Hoosier Burger project, you have been busy collecting, structuring, and evaluating the new system’s requirements. During a Monday morning meeting with Bob and Thelma, the
Consider the E-R diagram in Figure 7-7.a. What is the identifier for the CERTIFICATE associative entity?b. Now, assume that the same employee may take the same course multiple times, on different
Match each of the key terms with the definition that best fits it.___________ A simultaneous relationship among instances of three entity types.Here are the key terms from the chapter. The page where
Talk to MIS professionals at a variety of organizations and determine the extent to which CASE tools are used in the creation and editing of entity-relationship diagrams. Try to determine whether
Distinguish between unary, binary, and ternary relationships and give an example of each.
Match each of the key terms with the definition that best fits it.___________ A collection of entities that share common properties or characteristics.Here are the key terms from the chapter. The
Distinguish between a relationship and an associative entity, and use associative entities in a data model when appropriate.
Which of the following types of relationships can have attributes associated with them: one-to-one, one-to-many, many-to-many?
Match each of the key terms with the definition that best fits it.___________ A relationship between instances of two entity types.Here are the key terms from the chapter. The page where each term is
A car rental is an association between a customer, sales agent, and a car. Select a few pertinent attributes for each of these entity types and represent a rental in an E-R diagram.
Consider the purchase of a new PC to be used by you at your work (or by you at a job that you would like to have). Describe in detail three alternatives for this new PC that represent the low,
For the new PC described in Question 6, develop ranked lists of your requirements and constraints as displayed in Figure 7-19. Display the requirements and constraints, along with the three
Relate data modeling to process and logic modeling as different ways of describing an information system.
Match each of the key terms with the definition that best fits it.___________ An entity type that associates the instances of one or more entity types and contains attributes that are peculiar to the
Generate at least three alternative design strategies for an information system.

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