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100 terms

Computer System Design Midterm

CIS 2321
STUDY
PLAY
The organizational role most responsible for the analysis and design of information systems best describes a
systems analyst
The process of developing and maintaining an information system best describes
information systems analysis and design
Software designed to support the payroll function would best be classified as
application software
A sequence of step-by-step approaches that help develop the information system best describes
methodologies
A group of interrelated procedures used for a business function, with an identifiable boundary, working together for some purpose, best defines
system
Which of the following is not a system characteristic:
Scope
An aggregation of parts is also called a(n)
Subsystem
The point of contact where a system meets its environment or where subsystems meet each other best describes
Interfaces
Which of the following is not a function of decomposition:
Know the functions of decomposition
Which of the following is a direct result of decomposition:
Modularity
Today, systems development focuses on
systems integration
Transaction processing systems
automate the handling of data about business activities or transactions
Management information systems
take raw data that have been previously captured and convert them into a meaningful aggregated form that managers need to conduct their responsibilities
Decision support systems
are designed to help organizational decision makers make decisions
Which of the following is an IS characteristic for a transaction processing system?
Has a high-volume, data capture focus
Which of the following is an IS characteristic for a decision support system?
Often involves semistructured problems and the need to access data at different levels of detail
Which of the following is an IS characteristic for a management information system?
Draws on diverse yet predictable data resources to aggregate and summarize data
The need for a new or enhanced system is identified during
systems planning and selection
In which SDLC phase will the analyst study the organization's current procedures and the information systems used to perform tasks?
Systems analysis
In which phase will the systems analyst convert the description of the recommended alternative solution into logical and then physical system specifications?
Systems design
A description of the alternative solution recommended by the analysis team is provided during the
systems analysis phase
In which SDLC phase is the information system coded, tested, and installed in the organization?
Systems implementation and operation
Priorities for systems and projects are deliverables for the
systems planning and selection phase
Which of the following is not an approach to systems development?
Reengineering analysis
An individual with a diverse set of skills-management, leadership, technical, conflict management, and customer relationship-who is responsible for initiating, planning, executing, and closing down a project best defines
project manager
Which of the following is not a project planning activity?
Establishing management procedures
During which of the following project planning activities do you use the information regarding tasks and resource availability to assign time estimates to each activity in the work breakdown structure?
Develop a preliminary schedule
Indicating when and how written and oral reports will be provided by the team, how team members will coordinate work, what messages will be sent to announce the project to interested parties, and what kinds of information will be shared with vendors and external contractors involved with the project describes
developing a communication plan
The third phase of the project management process in which the plans created in the prior phases are put into action is
project execution
Which of the following occurs during project execution?
Monitoring project progress against the Baseline Project Plan
A technique that uses optimistic, pessimistic, and realistic time to calculate the expected time for a particular task best defines
Program Evaluation Review Technique (PERT)
Optimistic time refers to
the minimum period of time for an activity to be completed
Pessimistic time refers to
the maximum period of time for an activity to be completed
Realistic time refers to
the planner's "best guess" of the amount of time the activity actually will require for completion
The amount of time that an activity can be delayed without delaying the project refers to
slack time
Which of the following possible project sources most often reflects the broader needs of the organization?
Top management
The extent to which the project is viewed as improving profits, customer service, etc., and the duration of these benefits best defines which of the following evaluation criteria?
Potential benefits
The extent to which the project is viewed as helping the organization achieve its strategic objectives and long-term goals describes
strategic alignment
Analyzing an organization's activities to determine where value is added to products and/or services and the costs incurred best describes
value chain analysis
The primary deliverable from the project identification and selection phase is
schedule of specific IS development projects
As a rule of thumb estimate, what percentage of the entire development effort should be devoted to the project initiation and planning process?
Between 10 and 20 percent
The objective of the project planning process is the development of
Baseline Project Plan and Project Scope Statement
A major outcome and deliverable from project initiation and planning that reflects the best estimate of the project's scope, benefits, costs, risks, and resource requirements defines the
Baseline Project Plan
A major outcome and deliverable from the project initiation and planning phase that contains an estimate of the project's scope, benefits, costs, risks, and resource requirements best defines
Business Case
A benefit derived from the creation of an information system that can be measured in dollars and with certainty is a(n)
tangible benefit
The reduction of waste creation is an example of a(n)
intangible benefit
A cost associated with project start-up and development or system start-up refers to a(n)
one-time cost
A cost resulting from the ongoing evolution and use of a system best defines a(an)
recurring cost
Application software maintenance, new software and hardware leases, and incremental communications are examples of
recurring costs
The concept of comparing present cash outlays to future expected returns best defines
time value of money
The interest rate used to compute the present value of future cash flows refers to
discount rate
The current value of a future cash flow is referred to as
present value
The analysis technique that uses a discount rate determined from the company's cost of capital to establish the present value of a project is commonly called
net present value (NPV)
The ratio of the net cash receipts of the project divided by the cash outlays of the project, enabling trade-off analysis to be made between competing projects, is often referred to as
return on investment (ROI)
The analysis technique that finds the amount of time required for the cumulative cash flow from a project to equal its initial and ongoing investment is referred to as
break-even analysis (BEA)
A document prepared for the customer during project initiation and planning that describes what the project will deliver and outlines generally at a high level all work required to complete the project is the
Project Scope Statement
An Internet-based communication that supports business-to-business activities best describes
Extranet
The use of telecommunications technologies to transfer business documents directly between organizations best defines
electronic data interchange (EDI)
Which of the following is a subphase of analysis?
Requirements determination
Analysts gathering information from as many sources as possible about what the new system should do is indicative of
requirements determination
The primary deliverables from requirements determination include
observation notes; interview transcripts; analysis from documents
The purpose of requirements structuring is to
enable the large amount of information gathered during requirements determination to be organized
Techniques developed to keep the analysis effort minimal, yet still effective include
JAD
Traditional methods of collecting systems requirements include
Interviews
The analysis of documents can help you identify
Problems with existing systems; special info processing circumstances that occur irregularly; the reason why current systems are designed the way they are; the organizational direction that can influence info system requirements
If your analysis of several written procedures reveals a duplication of effort in two jobs, you should
call the duplication to the attention of management as an issue to be resolved before system design can proceed
The official way a system works as described in organizational documentation is referred to as a(n)
formal system
The way a system actually works is referred to as a(n)
informal system
Forms are important for understanding a business because they
indicate what data flow in or out of a system and which are necessary for the system to function
Forms are most useful
when they contain actual organizational data
A report
enables you to work backward from the information on the document and identify the data that must have been necessary to generate it
When reviewing job procedures, you may find
a missing procedure; duplicate procedures; out of date procedures; a contradiction between a formal procedure and interview or observation results
Which of the following is a modern method for collecting system requirements?
Joint Application Design
Drawbacks to prototyping include
Know the drawbacks to prototyping
Prototyping is most useful for requirements determination when
communication problems have existed in the past between users and analysts
The search for, and implementation of, radical change in business processes to achieve breakthrough improvements in products and services best defines
business process reengineering
The structured, measured set of activities designed to produce a specific output for a particular customer or market best defines
key business processes
Which of the following system requirement determination techniques can be applied to discovering and understanding key business processes?
JAD; document analysis; observation; interview
Technologies that enable the breaking of long-held business rules that inhibit organizations from making radical business changes best defines
disruptive technologies
Which of the following technologies disrupted the business rule that information can appear only in one place at a time?
Distributed databases
Which of the following technologies disrupted the business rule of you having to find out where things are?
Automatic identification and tracking technology
Disruptive technologies include
Distributed databases; expert systems; decision support tools; automatic identification and tracking technology
The types of customers to be supported by Pine Valley Furniture's new WebStore include
Corporate customers; home office customers; student customers
The practice of turning over responsibility of some or all of an organization's information systems applications and operations to an outside firm is referred to as
Outsourcing
When developing information systems, an organization could use
Info tech services firm; open-source software; enterprise-wide solution software; in-house development
A system that integrates individual traditional business functions into a series of modules so that a single transaction occurs seamlessly within a single information system rather than several separate systems best describes
enterprise resource planning (ERP)
All of the following are benefits of enterprise solutions, EXCEPT
shifting toward enterprise solutions means changing business processes
One key difference between application service providers (ASPs) and managed service providers (MSPs) is that
MSPs offer network-based services
Open-source software is developed by
communities of interested people
An organization should acquire software from in-house developers when
the resources and staff are available and the system must be built from scratch
Which of the following describes the internal staffing requirements when software components are acquired from packaged software producers?
Some information systems (IS) and user staff to define requirements and evaluate packages are needed
Which of the following describes the internal staffing requirements when software components are acquired from enterprise-wide solutions providers?
Some internal staff are necessary, but mostly consultants are needed.
Which of the following are common criteria to consider when selecting off-the-shelf software
Flexibility; vendor viability; functionality; cost
Two criteria that are always among the most important when choosing software are
ease of installation & flexibility
In terms of criteria to consider when choosing off-the-shelf software, ease of customization is also referred to as
flexibility
In terms of criteria to consider when choosing off-the-shelf software, documentation refers to all of the following EXCEPT
the baseline project plan
The document sent to vendors asking them to propose hardware and software that will meet the requirements of your new system is called a
request for proposal (RFP)
Reuse typically refers to using previously written
objects; components
Reusing software can
decrease development time
Technologies that enable the breaking of long-held business rules that inhibit organizations from making radical business changes best defines
disruptive technologies