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computer sciences
systems analysis and design

Questions and Answers of Systems Analysis And Design

It is always difficult to observe users in their jobs. It frequently makes both you and them uncomfortable. What things could you do to ensure that user behavior is not changing because of your
What would you do if you got conflicting answers for the same procedure from two different people you interviewed? What would you do if one was a clerical person and the other was the department
You are a team leader of four systems analysts. You have one analyst who has never done a structured walkthrough of her work. How would you help the analyst to get started? How would you ensure that
You have been assigned to resolve several issues on the open-items list, and you are having a hard time getting policy decisions from the user contact. How can you encourage the user to finalize
You are going on your first consulting assignment to do systems analysis. Your client does not like to pay to train new, inexperienced analysts. What should you do to appear competent and well
In the running case of Rocky Mountain Outfitters, you have set up an interview with Jason Nadold in the shipping department. Your objective is to determine how shipping works and what the information
Develop an activity diagram based on the following narrative. Note any ambiguities or questions that you have as you develop the model. If you need to make assumptions, also note them.The purpose of
Develop an activity diagram based on the following narrative. Note any ambiguities or questions that you have as you develop the model. If you need to make assumptions, also note them. The purchasing
Develop an activity diagram based on the following narrative. Note any ambiguities or questions that you have as you develop the model. If you need to make assumptions, also note them. The shipping
Get a group of your fellow students together and conduct a structured walkthrough of your results from exercise 1 or 2. Using the results of your interview or observation, document the procedure in a
Using Rocky Mountain Outfitters and the customer support subsystem as your guide, develop a list of all the procedures that may need to be researched. You may want to think about the exercise in the
1. What is the best method for Edward to involve the brokers (users) in development of the new online trading system? Should he use a questionnaire? Should he interview the brokers in each of the
1. Identify the major points you would include in a communications plan at this point in the project.2. What advice would you give your project team to help it manage the user expectations?3. What
1. What information-gathering methods are most appropriate to learn about requirements from Reliable’s own management staff and other employees? From client health-care organizations? From
What are three techniques used to identify use cases?
What is an event and what is an elementary business process (EBP)?
What are the three types of events?
What are some examples of system controls?
What does the perfect technology assumption state?
What is a trigger? A source? A use case? A response? A destination?
What is the difference between a use case and a scenario? Give an example of each.
What are preconditions and post conditions? Give an example of each.
What are exception conditions? Give an example.
What is a relationship?
What is cardinality or multiplicity of a relationship?
What are unary, binary, and n-ary relationships?
What are attributes and compound attributes?
What is an associative entity?
What symbols are shown in an entity-relationship diagram?
What symbols are shown in a domain model class diagram?
What is a generalization/specialization hierarchy?
What types of classes are shown in a domain model class diagram?
Explain how a user goal can be used as a technique to identify use cases.
Explain how the CRUD technique can be used to identify use cases.
Explain the importance of elementary business processes (EBPs) in identifying use cases.
Review the external event checklist in Figure and think about a university course registration system. What is an example of an event of each type in the checklist? Name each event using the
Review the temporal event checklist in Figure. Would a student grade report be an internal or external output? Would a class list for the instructor be an internal or external output? What are some
In a course registration system, for the event Student registers for classes, create an event table entry listing the event, trigger, source, use case, response(s), and destination (s). For the event
Consider the following sequence of actions taken by a customer at a bank. Which action is the event the analyst should define for a bank account transaction-processing system?(1) Kevin gets a check
Consider the perfect technology assumption, which states that events should be included during analysis only if the system would be required to respond under perfect conditions. Could any of the
Draw an entity-relationship diagram, including minimum and maximum cardinality for the following: The system stores information about two things: cars and owners. A car has attributes for make,
Draw a class diagram for the cars and owners described in exercise 9 but include subclasses for sports car, sedan, and minivan with appropriate attributes.
Again consider the entity-relationship diagram shown in Figure. Add the following to the diagram and list any assumptions you had to make. A faculty member usually teaches many course sections, but
If the entity-relationship diagram you drew in exercise 12 showed a many-to-many relationship between faculty member and course section, a further look at the relationship might reveal the need to
Draw a class diagram for the course enrollment system completed in exercise 13. Be sure to use the correct notation for association classes.
Consider a system that needs to store information about computers in a computer lab at a university, such as the features and location of each computer. What are the things that might be included in
Draw a domain model class diagram for the computer lab system described in exercise 15.
Consider the domain model class diagram for Rocky Mountain Outfitters shown in Figure. If a Web order is created, how many attributes does it have? If a telephone order is created, how many
A product item for RMO is not the same as an inventory item. A product item is something like a men’s leather hunting jacket supplied by Leather ‘R’ Us. An inventory item is a specific size and
Consider the following domain model class diagram showing college, department, and faculty members.a. What kind of relationships are shown in the model?b. How many attributes does a â€œfaculty
Visit some Web sites of car manufacturers such as Honda, BMW, Toyota, and Acura. Many of these sites have a use case that is typically named Build and price a car. As a potential customer, you can
Set up a meeting with a librarian. During your meeting, ask the librarian to describe the situations that come up in the library to which the book checkout system needs to respond. List these
Visit a restaurant or the college food service and talk to a server (or talk with a friend who is a food server). Ask about the external events, temporal events, and data entities or objects, as you
Review the procedures for course registration at your university and talk with the staff in advising, in registration, and in your major department. Think about the sequence that goes on over an
Again review information about your own university. Create generalization/specialization hierarchies using the domain model class diagram notation for (1) Types of faculty, (2) Types of students, (3)
1. To what events must the SBRU booking system respond? Create a complete event table listing the event, trigger, source, use case, response, and destination for each event. Be sure to consider only
1. To what events must the multiple listing service system respond? Create a complete event table listing the event, trigger, source, use case, response, and destination for each event.2. Draw an
1. To what events must the ticket processing system respond? Create a complete event table listing the event, trigger, source, use case, response, and destination for each event.2. Draw an
1. Discuss the implications that such a change would have on the scope of the project. How might this new capability change the list of stakeholders the team would involve when collecting information
1. Create an event table that lists information about system requirements based on the following specific system processing: When a nursing home needs to fill prescriptions for its patients, it
List at least three different types of DFDs. What is each diagram type used to represent?
List the five component parts (symbols) of a DFD. Briefly describe what each symbol represents.
How does an analyst determine whether a person or organization should be represented on a DFD as an external agent or by one or more processes?
Processes on an event-partitioned DFD can be described by a detailed DFD or a process specification. How does an analyst determine which is the most appropriate form of description?
Describe how each column of an event table is represented on a DFD (that is, what symbols are used?).
How are entities from the ERD represented on a DFD? How are relationships from the ERD represented on a DFD?
What features may be present on a physical DFD that should never be present on a logical DFD?
What DFD characteristics does an analyst examine when evaluating DFD quality?
What is a black hole? What is a miracle? How can each be detected?
Why might an analyst describe a process with a decision table or tree instead of structured English?
What is an activity-location matrix? How is it related to DFDs?
What is an activity-data matrix? How is it related to DFDs and the ERD?
Assume that you are preparing a DFD to describe the process of creating, approving, and closing a mortgage loan by a mortgage broker. Should the broker be represented as an external agent or by one
Examine the course registration system described in Figure. Are there any other processes that would be required to implement a fully functioning system?
Assume that the transaction summary report for the RMO order-entry subsystem (see in Figure) contains a listing of every order that was created during a date range entered by the user. The report
Create an activity-data (CRUD) matrix for the course registration system inFigure.
Develop a physical DFD that models the process of grocery shopping, from the time you write down a shopping list until the time you store purchased groceries in your home. Construct your DFD as a
Consider the admissions requirements for a degree program, major, or concentration at your school. Look up the requirements in the school catalog and rewrite them in structured English. Develop an
Get a copy of your school transcript. Write a data definition that describes its contents. Write data element definitions for the fields Grade, Credits, and Degree.
1. Draw a context DFD.2. Draw an event-partitioned DFD.3. Draw any required process decomposition DFDs.Refer to the description of the Real Estate Multiple Listing Service system in the Chapter 5
1. Draw a context DFD.2. Draw an event-partitioned DFD.3. Draw any required process decomposition DFDs.4. Create data flow definitions for any data flows that are fully described in the written
1. Develop DFD fragments for all of the events not documented in Figure.2. Develop a single DFD that shows processing for all events, using one process for each subsystem and showing all needed data
1. Create a context diagram for the Reliable Pharmaceutical case based on the system description in Chapter 1 and the event table that you developed in Chapter 5.2. Create DFD fragments for each
What is the OMG?
What is UML? What type of modeling is it used for?
What are the four basic parts of a use case model? What is its purpose or objective?
What are the two basic parts of the domain model? What is its purpose or objective?
What is the difference between a use case description and an activity diagram?
What is the «includes» relationship used for?
What is the difference in the focus on the boundary condition of a use case diagram and an event table?
With regard to a use case, what is an activity diagram used for?
What is the purpose of a system sequence diagram? What symbols are used in a system sequence diagram?
What are the steps required to develop a system sequence diagram?
What is the purpose of a state machine diagram?
List the primary steps for developing a state machine diagram.
List the elements that make up a transition description. Which elements are optional?
What is a composite state? What is it used for?
Identify the models explained in this chapter and their relationship to each other.
To review your skills in developing a class diagram, develop a domain model class diagram, including associations and multiplicities, based on the following narrative. This case is a simplified
Develop a use case diagram for the university library system. Part a. Based on the following descriptions; list the use cases and actors. Patrons have access to the library information to search for

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