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第七章 软件项目管理 PowerPoint PPT Presentation


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第七章 软件项目管理. 计划. 所谓 管理 就是通过 计划、组织和控制 等一系列活动,合理地配置和使用各种资源,以达到既定目标的过程。 软件项目管理 先于任何技术活动之前开始,并且贯穿于软件的整个生命周期之中。 软件项目管理过程从 项目计划 开始,而第一项计划活动是 “ 估算 ” 。. 退出. 软件计划 最详尽地描述了软件过程,它包括采用的生命周期模型、开发组织的组织结构、责任分配、管理目标和优先级、所用的技术和 CASE 工具,以及详细的进度、预算和资源分配。 整个计划的基础 是工作量估算和完成期限估算 。. 1 度量软件规模

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第七章 软件项目管理

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3268848


3268848


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  • CASE


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  • 1

  • 2

  • 3

  • 4


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1

  • 1.1


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  • (a)(b)(m)

  • (LOC)(KLOC)


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  • 1.2

  • (FP)

  • 1.

  • 5(Inp)(Out)(Inq)(Maf)(Inf)


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  • 2.

  • ()

  • (1) UFP

  • (InpOutInqMafInf)436

  • UFP

  • UFP=a1Inp+a2Out+a3Inq+a4Maf+a5Infai(1i5)


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  • (2) TCF

  • 14()Fi(1i14)0()5()DI

  • TCF

  • TCF=0.65+0.01DI

  • DI070TCF0.651.35


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  • (3) FP

  • FP

  • FP=UFPTCF


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2

  • (LOCFP)(pm)


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  • 2.1

  • E=A+B(ev) C

  • ABCEev(LOCFP)E()


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  • 1. LOC

  • (1) WalstonFelix

  • E=5.2(KLOC)0.91

  • (2) BaileyBasili

  • E=5.5+0.73(KLOC)1.16

  • (3) Boehm

  • E=3.2(KLOC)1.05

  • (4) Doty(KLOC9)

  • E=5.288(KLOC)1.407


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  • 2FP

  • (1) Albrecht & Gaffney

  • E=-13.39+0.0545FP

  • (2) Kemerer

  • E=60.627.72810-8FP3

  • (3) MastonBarnettMellichamp

  • E=585.7+5.12FP


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  • 2.2

  • 4000

  • E=LOCB0.333/P3(1/t) 4

  • E

  • t

  • B(KLOC=515)B=0.1670KLOCB=0.39

  • P


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  • P=2000P=10000P=28000

  • (LOC)

  • (LOC)


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  • 2.3 COCOMO

  • COCOMOBoehm(COnstructive COst MOdel)

  • COCOMO(KLOC)


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  • MM()

  • C1

  • KLOC()

  • a

  • fi(i=115)

  • COCOMO

  • 1.

  • (1) (RELY)


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  • (2) (DATA)

  • (3) (CPLX)

  • 2.

  • (1) (TIME)

  • (2) (STOR)

  • (3) (VIRT)

  • (4) (TURN)


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  • 3.

  • (1) (ACAP)

  • (2) (AEXP)

  • (3) (PCAP)

  • (4) (VEXP)

  • (5) (LEXP)


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  • 4.

  • (1) (MODP)

  • (2) (TOOL)

  • (3) (SCED)


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  • ()(50000)()(300000)


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  • 34()


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  • 64COCOMO20%68%


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3


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  • 3.1


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  • 3.2 Gantt

  • Gantt()

36

123423

132422


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1 Gantt

Gantt

8.2


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2 Gantt


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  • 3.3

  • Gantt


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  • ()()8.3112112


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3

121232

241353

462471

584683

7928104

910310114

34566789


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  • 3212(1)23(2)24(1)121


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  • 8.3412(46)212(3)3423(2)46(2)34


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  • 3.4

  • 3

  • EETLET8.4


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121232241353462471584683792810491031011434566789

4 ()


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  • EET

  • EET

  • EET


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  • ()LET

  • LET


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  • 3.5

  • 8.4()()


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  • 3.6

  • =(LET)-(EET)-

  • 8.6


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  • (4)


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5 Gantt


Gantt chart

2001

ID

Task Name

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

1

Preliminary investigation

2

Problem analysis

3

Requirements analysis

4

Decision analysis

5

Design

6

Construction

7

Implementation

Today

Complete Task

Legend

Incomplete Task

Gantt Chart


Pert chart

PERT Chart

Project Initiation

Legend

5-3-2001

N/A

Task

Task

5-3-2001

N/A

Scheduled

Scheduled

Scheduled

Scheduled

intertask

Start

Finish

Start

Finish

dependency

Actual

Actual

Actual Start

Actual Start

Finish

Finish

Preliminary Investigation

5-3-2001

5-12-2001

5-3-2001

5-11-2001

Problem Analysis

Requirements Analysis

Decision Analysis

5-28-2001

7-15-2001

6-13-2001

7-30-2001

5-12-2001

6-12-2001

5-30-2001

7-18-2001

6-13-2001

8-3-2001

5-12-2001

6-14-2001

Design

Construction

7-3-2001

9-25-2001

7-19-2001

11-13-2001

7-5-2001

10-9-2001

7-20-2001

In Progress

Implementation

9-10-2001

12-14-2001

TBD

TBD


Microsoft project gantt chart

Microsoft Project Gantt Chart


Microsoft project pert chart

Microsoft Project PERT Chart


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4


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  • COCOMO


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  • GanttGanttGantt


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  • Gantt


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