question

The process of understanding how an information system can support business needs, design the system, build it, and deliver it to users is the _____.

answer

systems development life cycle

question

The primary goal of the systems analyst is to

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c. make a significant business impact

question

The four phases of the Systems Development Life Cycle are _____.

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d. planning, analysis, design, and implementation

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The principal disadvantages(s) with the waterfall development methodology is (are)

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a long time elapses between completion of the system proposal and the delivery of the system and the design must be completely specified on paper before programming begins

question

_____ development is a structured design methodology that proceeds in a sequence from one phase to the next.

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Waterfall Development

question

Design methodology that breaks an overall system into a series of versions

answer

Phased Development

question

Design Methodology that attempts to address the problem of long delays between the analysis phase

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Parallel Development

question

_____ value can be quantified during the project initiation phase.

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Tangible

question

_____ is the process of examining the technical, economic, and organizational pros and cons of developing a new system.

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b. Feasibility analysis

question

The four elements commonly found on a system request are _____.

answer

project sponsor, business need, business requirements, and business value

question

Feasibility analysis may be defined as a(n)_____.

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c. guide to determining whether to proceed with a project

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_____ feasibility is determined by identifying costs and benefits associated with the system.

answer

Economic

question

The calculation that measures the amount of money an organization receives in return for the money it spends is called the _____.

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e. return on investment

question

The level of acceptance by the users of a system and the extent to which the new system will be incorporated into the operations of the organization are expressed in the _____ feasibility.

answer

Organizational

question

Understanding the as-is system, identifying improvements, and developing requirements for the to-be system are the steps of the _____ phase.

answer

Analysis phase

question

The analysis strategy that results in the existing business processes being left essentially the same, but with a new system that makes them more efficient is _____.

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business process automation (BPA)

question

The goal of this analysis strategy is to change the fundamental way the organization operates and to make major changes by taking advantage of new ideas, methods and technology.

answer

d. business process reengineering (BPR)

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Which of the following analysis strategies incurs the highest risk yet has the potential to provide high value to the business?

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c. Business Process Reengineering

question

A(n) _____ is a formal way of representing how a business system interacts with its environment.

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use case

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Each use case describes _____ function(s) in which users interact with the system. a. one b. one or more c. many d. zero, one, or more e. all

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one

question

The _____ relationship in use cases allows use cases to support the concept of inheritance.

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generalization

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The event that causes a use case to begin is called a(n) _____.

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trigger

question

A(n) _____ of an analysis class is where the behavior of the class is defined.

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operation

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Which of the following will be converted to methods in later phases of the SDLC? a. attributes b. operations c. classes d. objects e. abstract classes

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operations

question

Service is another name for _____.

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operation

question

"A?kind?of" relationships represent _____ relationships.

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generalization

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A class diagram is a(n) _____ model.

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static

question

A public attribute is shown in a class diagram with the symbol _____ before the name.

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+

question

The external behavior of a system is described by _____.

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functional models

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An analyst depicts the static view of an information system with _____.

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structural models

question

The two types of interaction diagrams are ______________ diagrams.

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sequence and communication

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A(n) _____ is an instantiation of a class.

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object

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_____ are information that is sent to objects to tell it to execute one of its behaviors.

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messages

question

A systems analyst draws a lifeline with an X at the end. This lifeline represents _____.

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an object that is destroyed at a point in time

question

The acronym CRUD stands for _____.

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create, read, update, delete

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To avoid the classic design mistake of "feature creep," the analyst should _____.

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use rapid application development techniques or timeboxing

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The layer that keeps the user interface implementation separate from the application or problem domain classes is the _____ layer.

answer

human?computer interaction

question

Manipulating certain parameters to refine the way features work in a software package is called _____.

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customization

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T/F: The layer that would include the classes that would interact with middleware applications is the physical architecture layer

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True

question

T/F: The attributes that change in a behavior state machine must appear in the object attribute list.

answer

True

question

Data may be stored in the following formats _____.

answer

files and databases

question

Data may be stored in the following formats _____.

answer

files and databases

question

A(n) _____ can support large volumes of data and support applications that run an entire company.

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enterprise database management system

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SQL operates on _____.

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tables of data at a time

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A relational database may be optimized for _____.

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storage efficiency and speed of access

question

A(n) _____ occurs when data are stored redundantly in a database and only some of the instances are updated when a change is needed.

answer

update anomaly

question

If the data model does not have any repeating fields it is in _____.

answer

first normal form

question

In order to reduce the number of joins that must be performed in a query and to increase the speed of data access, the data analyst will _____ the physical model.

answer

denormalize

question

To improve the access speed of a database, similar records in a table are stored together in primary key order. This optimizing access speed process is called _____.

answer

intrafile clustering

question

_____ is the process of estimating the amount of data that the hardware will need to support, so that the server hardware specifications are sufficient for the project's needs.

answer

Volumetrics

question

The size of a database is determined by the _____.

answer

amount of raw data in the tables and overhead requirements for the DBMS

question

What is a "Database Management System"?

answer

software that creates and manipulates these databases

question

What is a "End-user Database Management System"?

answer

support small-scale databases that are used to enhance personal productivity

question

Interface Design: Layout

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Should be a series of areas on the screen that are used consistently for different purposes

question

Interface Design: Content Awareness

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Users should always be aware of where they are in the system and what information is being displayed

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Interface Design: Consistency

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Enables user to predict what will happen before they perform a function

question

Interface Design: Aesthetics

answer

Should be functional and inviting to users through careful use of white space, colors, and fonts

question

Interface Design: Minimal User Effort

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Should be simple to use

question

User Interface Design Process

answer

1. Scenario development -Analysts examine uses cases and sequence diagrams 2. Interface structure design -Windows Navigation Diagram (WND) 3. Interface standards design 4. Interface design prototyping -Example: Storyboard, windows layout diagram, html prototype 5. Interface evaluation -Heuristic Evaluation -Walkthrough Evaluation -Interactive Evaluation -Formal Usability Testing

question

What is the Interface STRUCTURE Process?

answer

- Defines the basic components of the interface and how they work together to provide functionality to users. - A window navigation diagram (WND) models the state changes of the user interface

question

What is the Interface STANDARDS Process?

answer

- Are the basic design elements that are common across the individual screens, forms, and report within the system - There may be different sets of standards for different parts of the system

question

What is the Interface DESIGN PROTOTYPING Process?

answer

- Is a mock?up or a simulation of a computer screen, form, or report - Is prepared for each interface in the system to show users and programmers how the system will perform

question

What is the Interface Evaluation Process?

answer

- The goal is to understand how to improve the interface design before the system is complete - It is recommended that at least ten users be involved in the evaluation process - Four common approaches to interface evaluation are: • Heuristic evaluation • Walkthrough evaluation • Interactive evaluation • Formal usability testing

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