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computer science
systems analysis design

Questions and Answers of Systems Analysis Design

How or why are Web services important to designing and constructing modern application software? What decisions does a system designer need to make concerning Web services?
In what way(s) is three-layer architecture different from client/server architecture? In what way(s) is it similar?
List and briefly describe the function of each layer of three-layer architecture. On what type of computing device is each layer typically deployed?
List and briefly describe three common types of architectural diagrams developed and used by system designers.
Describe the key questions that should be asked and answered when a system designer is describing the environment of a system.
How are use cases and related information used by designers when designing application components?
What is a system of record? Under what conditions does a designer need to declare one system to be the system of record for a specific type of data? Under what conditions can a system designer avoid
One of the key use cases for the multiple listing service system is Create new listing, where the Realtor enters all the important information about a new listing he or she has obtained. Consider
Why is interface design often referred to as dialog design?
Visit some Web sites and then identify all the controls used for navigation and input. Are they all obvious? Discuss some differences in visibility and affordance among the controls.
Imagine resort security with a large, wide-screen monitor tracking traveler activities. Design a main screen that includes multiple locations, paths and roads, traveler location and status, messages
What are some examples of the physical, perceptual, and conceptual aspects of the user interface?
Review the case description and your solution for the Web scenario of the use case Request package pickup from Chapter 5. Then, using a presentation tool, such as Microsoft PowerPoint or Apple
What are the four metaphors used to describe human-computer interaction?
A desktop on the screen is an example of which of the metaphors used to describe human-computer interaction?
What is the technique that shows a sequence of sketches of the display screen during a dialogue?
What are some of the input controls that can be used to select an item from a list?
Consider the differences in physical characteristics among a current smartphone, a current tablet, and a current laptop computer with a 15-inch or larger screen. Also consider the student-facing Web
Complete the following tasks:1. Develop a simple network diagram that includes all four SBRU subsystems (resort relations, student booking, accounting/finance, and social networking) assuming that
A medium-sized engineering firm has three separate engineering offices. In each office, a local LAN supports all the engineers in that office. Due to the requirement for collaboration among the
Figure 5-15 shows a set of use cases for the patient and physician actors. Answer the following questions and/or complete the following exercises:1. Which use do cases include which other use cases?
List the parts or compartments of a fully developed use case description.
Compare/contrast precondition and postcondition.
What are the two ways to show a returned value on a sequence diagram?
What is the symbol for a true/false condition on a sequence diagram?
Develop an SSD based on the narrative or your activity diagram for problem 2.
What are the inputs to systems design? What are the outputs?
Compare and contrast Internet backbone networks with local area networks.
Compare/contrast postcondition and exception condition.
Compare/contrast business process and flow of activities for a use case. Explain how an activity diagram can be used to model both.
What is the purpose of a SSD? What symbols are used in a SSD?
What are the steps required to develop an SSD?
Write a complete SSD message from the actor to the system, with the actor asking the system to begin the process for updating information about a specific product.
What is the name of the sequence diagram symbol used to represent the extension of an object throughout the duration of a use case?
What are two ways to show repetition on a sequence diagram?
What are the three types of frames used on a sequence diagram?
What are the parameters of a message?
What are the words included in the CRUD acronym?
What is the purpose of using the CRUD technique?
Law enforcement agencies thrive on information. In previous eras, it was sufficient to receive information through the police dispatch radio. Today, much more than voice based information is
The Community Board of Realtors’ Multiple Listing Service (MLS) will be a Web-based application with extensions to allow wireless interaction between the agents and their customers using cell
The SBRU information system includes four subsystems: Resort relations, Student booking, Accounting and finance, and Social networking. The first three are purely Web applications, so access to those
List and briefly describe each design activity.
1. What kind of fraud is possible in this scenario? By the customer? By the truck driver? By collaboration between system users? What steps should Bill take to minimize the opportunity for fraud?2.
Why is the environment described while other key design elements such as the user interface and database are designed?
Answer these questions in light of HIPPA requirements:Does HIPAA apply to the RTGM system? Why or why not?How should the system ensure data security during transmission between a patient’s mobile
What models are developed during each design activity?
Examine the privacy policy (or privacy section of the user agreement) for a would online service provider such as Gmail, eBay, or Facebook. What are the implications of the privacy guarantees for
On a project that uses iterations to develop the system, in which iteration does systems design begin? Explain why.
Look on the Web site you use to access your bank account(s). What kinds of security and controls are integrated into the system?
What are the key elements of the environment described during design activities?
List at least three examples of application components.
Why is the singular form of the term user interface usually a misnomer?
Designing security and controls impacts the design of which other elements?
Compare and contrast integrity controls and security controls. Why isn’t there a separate activity to design them?
List and briefly describe the three elements of the fraud triangle. Over which element can a system designer exercise the greatest control?
Briefly define or describe authentication, access control lists, and authorization.
What is the difference between HTTPS and HTTP?
What is a server? Do all organizations with information systems own servers? Why or why not?
Investigate the technical and application architecture of a large-scale digital content provider such as iTunes or Google Play services. Update the architectural diagrams in the first half of the
1. Draw a network diagram that summarizes the systems described above; devices used by administrators, staff, instructors, and students; and the network connections among them. Assume that the
The Community Board of Realtors Multiple Listing Service is a small system with limited requirements. In Chapter 3, you identified a complete list of use cases. Using the results from your earlier
Explain the difference between a use case and a scenario. Give a specific example of a use case with a few possible scenarios.
Develop an SSD based on the narrative and your activity diagram for problem 1.
1. Based on this description, develop the following for the use case Request a package pickup and for the Web customer scenario:i. A fully developed use case descriptionii. An activity diagramiii. An
Which part of a use case description can also be modeled by using an activity diagram?
Given the following list of classes and associations for the previous car insurance system, list the preconditions and postconditions for the use case Add a new vehicle to an existing policy.
The Spring Breaks 'R' Us Travel Service system has many use cases and domain classes, which you identified in Chapters 3 and 4. Review the domain model class diagram to get a feel for the complexity
What two UML diagrams are used to model domain classes?
What are the models that describe use cases in more detail?
1. For the use case Add agent to real estate office, write a fully developed use case description. Also, develop an activity diagram and draw an SSD. Review the case materials in previous chapters
What is the purpose of a guard-condition?
What is meant by the term path?
What UML diagram is used to show the states and transitions for an object?
When considering requirements, states and state transitions are important for understanding which other diagram?
What is a state transition?
What is an object state?
Compare/contrast aggregation with composition for a whole part relationship.
What is a whole-part relationship, and why does it show multiplicity?
Compare/contrast superclass and subclass. Compare/contrasts abstract class and concrete class.
What is a generalization/specialization relationship, and what object-oriented terms does it illustrate?
In UML, what are three types of relationships found on a class diagram?
What is an association class? Extend the domain model class diagram for teams and players about to show a record of game statistics for each player in each game.
Draw a simple domain model class diagram for the example in question #23 where a team has zero or more players and each player is on one and only one team.Data from in question 23Sketch a simple ERD
List appropriate UML attribute names for the following attributes: student name, course grade, major name, and final exam quantity score.
List appropriate UML class names by using the camelback notation for the following classes: graduate student, undergraduate major, course instructor, and final exam feedback.
What does a domain model class diagram show about system requirements, and how is it different from an ERD?
What is a class, a domain class, and the key parts of a class diagram?
Sketch a semantic net that shows two teams and five players based on your ERD.
Sketch a simple ERD that shows a team has zero or more players and each player is on one and only one team.
What are the three key parts of an entity relationship diagram (ERD)?
What are the three types of associations, and which is the most commonly used?
What are some examples of multiplicity constraints?
What is the maximum multiplicity for the association that reads an order is placed by exactly one customer?
What is the minimum multiplicity for the association that reads a customer places zero or more orders?
What is multiplicity, and what is the other term used by traditional analysts and database analysts?
What is an association class? Why is an association class used for modeling?
What is the term used for association by traditional analysts and database analysts?
Based on the following description of a shipment made by Union Parcel Shipments, identify all the states and exit transitions and then develop a state machine diagram.
How would you describe or name the association between a ship and a captain?

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