计算机信息技术复习题

1、叙述信息的概念特征及信息与数据的关系。

3、试述系统的概念与特性，结合谈一谈你对系统工程的理解。

4、试述信息系统的概念及特征。

2、说明结构化生命周期法的基本原理。

3、结构化生命周期法包括哪些阶段？各阶段的主要任务是什么？

4、快速原型法的基本原理是什么？运用该方法的前提是什么？

可行性研究的步骤是什么？包括哪些内容？

结构化生命周期法对所在学校的学生成绩管理系统进行系统开发。

结构化生命周期法对所在学校的排课管理系统进行系统开发。

系统设计的主要任务是什么？它能为下一步的系统实现工作提供什么作用？

根据自己掌握的知识，谈谈界面设计的重要性。

系统实现阶段的主要任务是什么？与其它阶段有什么关系？

系统维护的内容有哪些？

5.系统评价有哪些指标要求？在评价中要注意什么问题？

6.什么是CMM？叙述其体系结构.

What is BPR？

Explain the method of PIECES.

What is FRMF？总体框架结构

What is information systems analysis and design？

Systems analysis and design is the complex organizational process whereby computer-based information systems are developed and operated. Systems analysis and design is a method used by companies,to create and maintain information systems that perform basic business functions such as keeping track of customer names and addresses,processing orders,and paying employees.The main goal of systems analysis and design is to improve organizational systems.

.Explain the different phases in the systems development life cycle.

The systems development life cycle has four phases.

The first phase in the SDLC,systems planning and selection,has two primary activities.First,someone identifies the need for a new or enhanced system.The second task is to

investigate the system and determine the proposed system’s scope.

The second phase of the systems development life cycle is systems analysis.During this phase,the analyst thoroughly studies the organization’s current procedures and the information systems used to perform tasks such as general ledger,shipping,order entry,machine scheduling,and payroll.

The third phase of the systems development life cycle is systems design.During systems design,analysts convert the description of the recommended alternative solution into logical and then physical system specifications.You must design all aspects of the system from input and output screens to reports,databases,and computer processes.

The final phase of the systems development life cycle is systems implementation and operation.During systems implementation and operation,you turn system specifications into a working system that is tested and then put into use.Implementation includes coding,testing,and installation.

What is decomposition？coupling? cohension?

Decomposition is the process of breaking down a system into its smaller components. Coupling means that subsystems are dependent on each other.

Cohesion is the extent to which a subsystem performs a single function.

.Describe the activities performed by the project manager during project initiation,project planning,project execution and project closedown.

To manage the project,the project manager must execute four primary activities: project initiation,project planning,project execution and project closedown.The focus of project initiation is on assessing the size,scope,and complexity of a project and establishing procedures to support later project activities. The focus of project planning is on defining clear,discrete activities and the work needed to complete each activity. The focus of project execution is on putting the plans developed in project initiation and planning into action.Project closedown focuses on bringing the project to an end.

The four steps of the systems development life cycle：planning and selection analysis ，design，and mplementation and operation 。

Most feasibility factors fall into the following six categories：economic ，operational ，technical ，schedule ，legal and contractual and political。