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computer sciences
systems analysis and design

Questions and Answers of Systems Analysis And Design

Explain the difference between a symmetric encryption algorithm and an asymmetric encryption algorithm.
What is meant by authentication? What is its role in securing transactions?
Describe the usefulness of the Internet's public key infrastructure (PKI).
Describe the types of cultural and political requirements and how they may influence architecture design.
Explain the difference between concurrent multilingual systems and discrete multilingual systems.
Why is it useful to define the nonfunctional requirements in more detail even if the technical environment requirements dictate a specific architecture?
What is the purpose of the hardware and software specification?
What do you think are three common mistakes that novice analysts make in developing the architecture design and hardware/software specification?
Are some nonfunctional requirements more important than others in influencing the architecture design and hardware/software specification?
What do you think are the most important security issues for a system?
Using the Web (or past issues of computer industry magazines, such as Computerworld), locate a system that runs in a server-based environment. On the basis of your reading, why do you think the
Using the Web (or past issues of computer industry magazines, such as Computerworld), locate a system that runs in a client-server environment. On the basis of your reading, why do you think the
Using the Web, investigate the term, virtual desktop infrastructure (VDI). Write a short memo explaining the concept to your boss.
You have been selected to find the best client-server computing architecture for a Web-based order entry system that is being developed for L.L. Bean. Write a short memo that describes to the project
Think about the system that your university currently uses for career services and pretend that you are in charge of replacing the system with a new one. Describe how you would decide on the
Locate a consumer products company on the Web and read its company description (so that you get a good understanding of the geographic locations of the company). Pretend that the company is about to
Pretend that your mother is a real estate agent and that she has decided to automate her daily tasks by using a laptop computer. Consider her potential hardware and software needs and create a
Pretend that the admissions office in your university has a Web-based application so that students can apply for admission online. Recently, there has been a push to admit more international students
The system development project team at Birdie Masters golf schools has been working on defining the architecture design for a new system. The major focus of the project is a networked school location
Jerry is the project manager for a team developing a retail store management system for a chain of sporting goods stores. Company headquarters is in Las Vegas, and the chain has 27 locations
Java Masters is an employment exchange agency that has offices in Northern California. Java Masters operates as a broker that links its client companies with independent software experts (commonly
Visit the Web home page for your university and navigate through several of its Web pages. Evaluate the extent to which they meet the six design principles.
Pretend that you have been charged with the task of redesigning the interface for the ATM at your local bank. Develop two use scenarios for it.
Pretend that you have been charged with the task of redesigning the interface for the ATM at your local bank. Design an ISD that shows how a user would navigate among the screens.
Pretend that you have been charged with the task of redesigning the interface for the ATM at your local bank. Develop an interface standard that includes metaphors, objects, actions, icons, and a
Pretend that you have been charged with the task of redesigning the interface for the ATM at your local bank. What type of prototyping and interface evaluation approach would you recommend?
Design a navigation system for a form into which users must enter information about customers, products, and orders. For all three information categories, users will want to change, delete, find one
Pretend that you are designing the new interface for a career services system at your university that accepts student résumés and presents them in a standard format to recruiters. Describe how you
Consider a Web form that a student would use to input student information and rèsumè information into a career services application at your university. Sketch out how this form would look and
I was involved in the development of several decision support systems (DSS) while working as a consultant. On one project, a future user was frustrated because he could not imagine what a DSS looked
Police officers in San Jose, California, experienced a number of problems with a new mobile dispatch system that included a Windows-based touch-screen computer in every patrol car. Routine tasks were
I helped a university department develop a small decision support system to analyze and rank students who applied to a specialized program. Some of the information was numeric and could easily be
One of the Fortune 500 firms with which I have worked had an 18-story office building for its world headquarters. It devoted two full floors of this building to nothing more than storing "current"
Explain three important user interface design principles.
What are three fundamental parts of most user interfaces?
Why is content awareness important?
What is white space, and why is it important?
Under what circumstances should densities be low? high?
How can a system be designed to be used by both experienced and first-time users?
Why is consistency in design important? Why can too much consistency cause problems?
How can different parts of the interface be consistent?
Describe the basic process of user interface design.
What are use scenarios, and why are they important?
What is an interface structure diagram (ISD), and why is it used?
Why are interface standards important?
Explain the purpose and contents of interface metaphors, interface objects, interface actions, interface icons, and interface templates.
Why do we prototype the user interface design?
Compare and contrast the three types of interface design prototypes.
Why is it important to perform an interface evaluation before the system is built?
Compare and contrast the four types of interface evaluation.
Under what conditions is heuristic evaluation justified?
Describe three basic principles of navigation design.
How can you prevent mistakes?
Explain the differences between object-action order and action-object order.
Describe four types of navigation controls.
Why are menus the most commonly used navigation control?
Compare and contrast four types of menus.
Under what circumstances would you use a dropdown menu versus a tab menu?
Describe five types of messages.
What are the key factors in designing an error message?
What is context-sensitive help? Does your word processor have context-sensitive help?
Explain three principles in the design of inputs.
Compare and contrast batch processing and online processing. Describe one application that would use batch processing and one that would use online processing.
Why is capturing data at the source important?
Describe four devices that can be used for source data automation.
Describe five types of inputs.
Compare and contrast check boxes and radio buttons. When would you use one versus the other?
Compare and contrast on-screen list boxes and dropdown list boxes. When would you use one versus the other?
Why is input validation important?
Describe five types of input validation methods.
Explain three principles in the design of outputs.
Describe five types of outputs.
When would you use electronic reports rather than paper reports, and vice versa?
What do you think are three common mistakes that novice analysts make in interface design?
How would you improve the form inFigure?
Develop two use scenarios for a Web site that sells some retail products (e.g., books, music, clothes).
Draw an ISD for a Web site that sells some retail products (e.g., books, music, clothes).
Describe the primary components of the interface standards for a Web site that sells some retail products (metaphors, objects, actions, icons, and templates).
Develop two use scenarios for the DFD in exercise C in Chapter 5.
Draw an ISD for the DFD in exercise C in Chapter 5.
Develop two use scenarios for the DFD in exercise E in Chapter 5.
Develop the interface standards (omitting the interface template) for the DFD in exercise E in Chapter 5.
Design an interface template for Exercise E.
Draw an ISD for the DFD in Exercise E in Chapter 5.
Develop the interface standards (omitting the interface template) for the DFD in Exercise I in Chapter 5.
Draw an ISD for the DFD in Exercise I in Chapter 5.
Design a storyboard for Exercise I in Chapter 5.
Develop two use scenarios for the DFD in Exercise I in Chapter 5.
Ask Jeeves (www.askjeeves.com) is an Internet search engine that uses natural language. Experiment with it and compare it with search engines that use key words.
Draw an ISD for "Your Turn 9.7," using the opposite grammar order from your original design. (If you didn't do the "Your Turn" exercise, draw two ISDs, one in each grammar order.) Which is "best"?
In "Your Turn 9.7" you probably used menus. Design the navigation system again, using a command language.
Tots to Teens is a catalog retailer specializing in children's clothing. A project has been underway to develop a new order-entry system for the company's catalog clerks. The old system had a
The members of a systems development project team have gone out for lunch together, and as often happens, the conversation has turned to work. The team has been working on the development of the user
One aspect of the new system under development at Holiday Travel Vehicles will be the direct entry of the sales invoice into the computer system by the salesperson as the purchase transaction is
Create a program specification for module 1.2.3.2, compute amount due, on the structure chart shown in Figure 10-13.QUESTION:On the basis of your specification, are there any changes to the structure
The rapid development face-off was a competition between rapid application development (RAD) teams from the leading consulting firms in the United States. The goal was to see which team could develop
What is the purpose of creating a logical process model and then a physical process model?
What information is found on the physical DFD that is not included on the logical DFD?
What is a human-machine boundary?
Why is using a top-down modular approach useful in program design?

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