Software Engeneering

1. PROCESS BASED ESTIMATION
NAME : ABHISHEK AHLAWAT SUBMITTED TO : ARCHANA BHATNAGAR
(MCA/25017/22)
SAMYAK JAIN
(MCA/2514/22)

2. WHAT IS ESTIMATING PROCESS ?
• Estimating is the process of looking into the future and
trying to predict project cost and resource requirements.
• To minimize error a consistent procedure or set of steps
for preparing an estimate is needed.

3. WHAT IS PROCESS BASED ESTIMATION ?
 The most common technique for estimating a project is to
use process as base.
 Process is decomposed into a relatively small set of
activities, actions , and tasks and the effort required for
each is estimated.
 Process-based estimation begins with the delineation of
software functions obtained from the project scope
 A series of framework activities must be performed for
each function.

4. Process Based Estimation Steps:
1.Identify the Project Processes
2.Estimate the time requirement for each processes
3.Determine the resources required for each process
4. Estimate the cost of each process
5.Summarize the estimate

5. EXAMPLE :
 PROBLEM : A software package is to be developed for
computer aided design application for mechanical
components.
FUNCTION
USER INTEFACE AND CONTROL FACILITIES (UICF)
TWO-DIMENSIONAL GEOMETRIC ANALYSIS (2DGA)
THREE-DIMENSIONAL GEOMETRIC ANALYSIS (3DGA)
DATABASE MANAGEMENT (DBM)
COMPUTER GRAPHICS DISPLAY FACILITIES (CGDF)
PERIPHERAL CONTROL FUNCTION (PCF)
DESIGN ANALYSIS MODULES (DAM)

6. • Estimates of effort (in person-months) for each software
activity are provided for each CAD software function.
• The engineering and construction release activities are
subdivided.
• Gross estimates of effort are provided for customer
communication, planning, and risk analysis.
• Noted in the total row at the bottom of the table.

7. • Horizontal and vertical totals indicate estimated effort
required for analysis, design , code , and test.
• 53 percent of all effort is expended on front-end
engineering tasks
(analysis and design).
• Based on average hundred labor rate of ₹ 15000/month.
• Total estimated project cost is ₹690000/month.
and the estimated effort is 46 person-months.

8. REFERENCE :
7th edition software_engineering_roger_s._pressman_.pdf

9. THANK YOU !!!