Principles of System Design Chapter 1, 2, 3, 4

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Which of the following methods of system development stresses intense team-based effort and reflects a set of community-based values?​ ​Agile method ​Structured analysis ​Rapid application development ​Object-oriented analysis

Agile method

Since middle managers focus on a longer time frame, they need less detailed information than top managers, but somewhat more than supervisors who oversee day-to-day operations.​ True False

False

The purpose of an interview, and of the preliminary investigation itself, is to convince others that a project is justified, not to uncover facts.​ True False

False

​Systems requests seldom are aimed at improving service to users within a company. True False

False

​When using fact-finding techniques, asking what is being done is the same as asking what could or should be done. True False

False

Feasibility analysis is an ongoing task that must be performed throughout the systems development process.​ True False

True

Most large companies require systems that combine transaction processing, business support, knowledge management, and user productivity features.​ True False

True

​An agile approach emphasizes continuous feedback, and each incremental step is affected by what was learned in the prior steps. True False

True

​System requirements fall into five general categories: outputs, inputs, processes, performance, and controls. True False

True

In object-oriented analysis, an object is a member of a(n) _____, which is a collection of similar objects.​ ​property ​class ​instance ​message

class

A _____ cannot be started until a previous task is completed.​ ​dependent task ​precursor task ​concurrent task ​predecessor task

concurrent task

A(n) _____ uses various symbols and shapes to represent data flow, processing, and storage.​ ​process flow diagram object model data flow diagram network model

data flow diagram

Which of the following is an example of a tangible benefit?​ ​A new website that enhances a company's image ​A user-friendly system that improves employee job satisfaction ​An online package tracking system that improves service and decreases the need for clerical staff ​A sales tracking system that supplies better information for marketing decisions

​An online package tracking system that improves service and decreases the need for clerical staff

​Adding more people to a project actually might increase the time necessary to complete the project because of a principle called _____. ​Moody's Law ​Brooks' Law ​Bernoulli's Law ​Hooke's Law

​Brooks' Law

​_____ are important to a systems analyst who must work with people at all organizational levels, balance conflicting needs of users, and communicate effectively. ​Interpersonal skills ​Confrontational skills ​Artistic skills ​Problem solving skills

​Interpersonal skills

Using a(n) _____, a project manager can convert task start and finish times to actual dates by laying out the entire project on a calendar.​ ​Scatter chart ​XY chart ​Pedigree chart ​Program Evaluation Review Technique (PERT) chart

​Program Evaluation Review Technique (PERT) chart

​_____ give the project managers an opportunity to seek input and conduct brainstorming sessions. ​Status reports ​Project status meetings ​Board meetings ​Project review reports

​Project status meetings

Identify a method of developing systems that is well-suited to traditional project management tools and techniques.​ ​Rapid application development ​Structured analysis ​Object-oriented analysis ​Adaptive method

​Structured analysis

Critical Thinking Questions Case 1-2 ​ Maddy has been performing at a very high level at a firm, and so when two of her colleagues who are currently leading other development efforts get sick or leave the company, she is asked to step in and help manage these two other efforts. When Maddy sits down at the first meeting at which the first group is gathering, she hears them discussing the feasibility study in which they are currently engaged. She knows, then, in which phase of the systems development life cycle (SDLC) this team currently is. Which phase is it? ​ ​Systems design ​Systems implementation ​Systems analysis ​Systems planning

​Systems planning

_____ provides vital protection and maintenance services for system hardware and software, including enterprise computing systems, networks, transaction processing systems, and corporate IT infrastructure.​ ​Systems support and security ​Network administration ​User support ​Database administration

​Systems support and security

_____ refers to the practical resources needed to develop, purchase, install, or operate a system.​ ​Schedule feasibility ​Operational feasibility ​Market feasibility ​Technical feasibility

​Technical feasibility

The term _____ refers to the reasons, or justifications, for a proposal. ​ ​work statement ​problem charter ​use case ​business case

​business case

A _____ is a summary of a project request and a specific recommendation.​ ​routine report ​case for action ​breakdown report ​case for approval

​case for action

​A _____ is a series of events and activities with no slack time. ​baseline path ​critical path ​foundation path ​risk path

​critical path

A _____ must be achieved to fulfill a company's mission. ​critical success factor ​key performance factor ​core competency ​vision competency

​critical success factor

In a typical organizational model, top managers _____.​ ​include users who rely on transaction processing (TP) systems to enter and receive the data they need to perform their jobs ​oversee operation employees and carry out day-to-day functions, coordinating operational tasks and people ​develop long-range plans, called strategic plans, which define a company's overall mission and goals ​provide direction, necessary resources, and performance feedback to supervisors and team leaders

​develop long-range plans, called strategic plans, which define a company's overall mission and goals

​Using _____, an analyst can show business functions and break them down into lower-level functions and processes. ​functional decomposition diagrams (FDD) ​total cost of ownership (TCO) ​Rapid Economic Justification (REJ) ​Unified Modeling Language (UML)

​functional decomposition diagrams (FDD)

​In a(n) _____ structure, which usually is based on interpersonal relationships, some people have more influence or knowledge than appears on an organization chart. ​unstructured ​open-ended ​informal ​spontaneous

​informal

Project scheduling, an activity of a project manager, _____.​ ​involves staffing, which includes selecting the project team and assigning specific tasks to team members ​requires guiding, supervising, and coordinating a project team's workload ​includes monitoring the progress of a project, evaluating results, and taking corrective action when necessary to stay on target ​includes budgeting a project based on the number of modules and their complexity in a project

​involves staffing, which includes selecting the project team and assigning specific tasks to team members

Compared with traditional methods, when properly used, joint application development (JAD) can result in many benefits, however not _____. ​a more accurate statement of system requirements ​a better understanding of common goals ​a stronger commitment to the success of the new system ​less expense and greater manageability if the group is too large

​less expense and greater manageability if the group is too large

​When maintaining schedules, if enough _____ and frequent checkpoints exist, problems will be detected rapidly. ​data flow diagrams ​activity diagrams ​milestones ​viewports

​milestones

​A _____ displays the same information as the Gantt chart, including task dependencies, but uses task boxes to include much more detail. ​semantic wireframe ring topology ​mesh topology ​network diagram

​network diagram

Of the measures of feasibility, questions such as "Does management support the project?" and "Will the new system require training for users?" would help predict a system's _____.​ ​operational feasibility ​technical feasibility ​schedule feasibility ​economic feasibility

​operational feasibility

To avoid the problem of _____, a project's scope should be defined as clearly as possible.​ ​project expansion ​project creep ​project dilation ​project drift

​project creep

One of the main activities in the systems analysis phase is _____, which involves fact-finding to describe the current system and identification of the specifications for the new system. ​goal-based modeling ​requirements modeling ​user-based modeling ​objective modeling

​requirements modeling

​A _____ is a proactive effort to anticipate a risk and describe an action plan to deal with it. ​risk management plan ​risk identification plan ​risk response plan ​risk balance plan

​risk response plan

​To evaluate _____, a systems analyst needs information about projected future volume for all outputs, inputs, and processes. ​scalability ​compatibility ​reliability ​applicability

​scalability

​The primary advantage of rapid application development (RAD) is that _____. ​a company's strategic business needs are emphasized and the mechanics of the system are not stressed ​systems can be developed more quickly with significant cost savings ​systems are developed more slowly with fewer bugs ​the decelerated time cycle allows more time to develop quality, consistency, and design standards

​systems can be developed more quickly with significant cost savings

The systems implementation phase of the systems development life cycle (SDLC) includes an assessment, called a _____, to determine whether the system operates properly and if costs and benefits are within expectation.​ ​systems validation ​systems estimation ​systems verification ​systems evaluation

​systems evaluation

​A _____ involves breaking a project down into a series of smaller tasks. ​risk breakdown structure (RBS) ​work breakdown structure (WBS) ​value breakdown structure (VBS) ​concept breakdown structure (CBS)

​work breakdown structure (WBS)


Kaugnay na mga set ng pag-aaral

Leadership and Management test 2

View Set

Ch. 13: The Weighted-Average Cost of Capital and Company Valuation

View Set