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Effort Estimates

COMP 380: Software Engineering

Estimating Process

Identify Requirements

Create High-Level Design

Break High-Level Design into smaller work packages

Map requirements to work packages

Create work packages for each development activity (Requirements, Design, Implementation, Testing)

Add in work packages related to project management

Add in work packages of other activities

Create Effort Estimate for each work package

Requirements

Create Deliverable

Define attributes

Requirements satisfied by Deliverable

Tasks necessary to complete Deliverable

Save Deliverable

Retrieve Deliverable

Display Deliverable

Attribute

Unique Identifier

Name

Description

Due Date

List of Requirements

List of Tasks

Hight-Level Design

Graphical User Interface

Middle-Ware

Database

Work Break-down Structure

Estimating S/W Development Effort - WBS

	Phase
Component	Requirements	Design	Implementation	Testing	Total
Deliverable Creation Form
Deliverable Display Form
Create Deliverable
Retrieve Deliverable
Update Deliverable
Delete Deliverable
Display Deliverables
Associate Requirements to Deliverable
Retrieve Requirements for Deliverable
Update Requirements for Deliverable
Un-associate Requirement to Deliverable
Associate Tasks to Deliverable
Retrieve Tasks for Deliverable
Update Tasks for Deliverable
Un-associate Task to Deliverable

Grand Total

Estimating S/W Dev. Effort - COCOMO

Component	SLOC
Deliverable Creation Form
Deliverable Display Form
Create Deliverable
Retrieve Deliverable
Update Deliverable
Delete Deliverable
Display Deliverables
Associate Requirements to Deliverable
Retrieve Requirements for Deliverable
Update Requirements for Deliverable
Un-associate Requirement to Deliverable
Associate Tasks to Deliverable
Retrieve Tasks for Deliverable
Update Tasks for Deliverable
Un-associate Task to Deliverable

Grand Total

Organic: Effort = [3.2 x (size)1.05] x PROD(f’s)

Semidetached: Effort = [3.2 x (size)1.12] x PROD(f’s)

Embedded: Effort = [3.2 x (size)1.20] x PROD(f’s)

Estimating S/W Dev. Effort - Function Points

Component	Type	Function Points	Weight	Total
Deliverable Creation Form
Deliverable Display Form
Create Deliverable
Retrieve Deliverable
Update Deliverable
Delete Deliverable
Display Deliverables
Associate Requirements to Deliverable
Retrieve Requirements for Deliverable
Update Requirements for Deliverable
Un-associate Requirement to Deliverable
Associate Tasks to Deliverable
Retrieve Tasks for Deliverable
Update Tasks for Deliverable
Un-associate Task to Deliverable

Unadjusted Function Points (UFP)

Total Complexity Factor (TCF) = 0.65 + [(0.01) x (sum of technical complexity factors)]

Function Points = UFP x TCF

Effort = (Function Points) / (Function Points per Person-Month)

Estimating S/W Dev. Effort – Simplified OO

Component	Classes	GUI Weight	Productivity	Total
Deliverable Creation Form
Deliverable Display Form
Create Deliverable
Retrieve Deliverable
Update Deliverable
Delete Deliverable
Display Deliverables
Associate Requirements to Deliverable
Retrieve Requirements for Deliverable
Update Requirements for Deliverable
Un-associate Requirement to Deliverable
Associate Tasks to Deliverable
Retrieve Tasks for Deliverable
Update Tasks for Deliverable
Un-associate Task to Deliverable

Grand Total

Project Management Tasks

Initiating	Planning	Executing	Monitoring and Controlling	Closing
Develop Project Charter	Develop Project Management Plan	Direct and Manage Project Work	Monitor & Control Project Work	Close Project or Phase
Identify Stakeholders	Plan Scope Management	Perform Quality Assurrance	Perform Integrated Change Control	Close Procurement
	Collect Requirements	Acquire Project Team	Control Schedule
	Define Scope	Develop Project Team	Control Costs
	Create Work Breakdown Structure	Manage Project Team	Control Quality
	Plan Cost Management	Manage Communications	Control Communications
	Estimate Costs	Conduct Procurement	Control Risks
	Determine Budget	Manage Stakeholder Engagement	Control Procurement
	Plan Quality Management		Control Stakeholder Engagement
	Plan Human Resource Management
	Plan Communications Management
	Plan Risk Management
	Identify Risks
	Perform Qualitative Risk Analysis
	Perorm Quantitative Risk Analyiss
	Plan Risk Response
	Plan Procurement Management
	Plan Stakeholder Management

Other Tasks

Miscellaneous Software Development Tasks

High-Level Design

Training

Help System

Documentation

Integration (Component, Subsystem, System)

Integration Testing (Component, Subsystem, System)

Packaging

Delivery

Other Tasks

Meetings (internal and client)

Other Factors

Use of Libraries and existing code

Use of commercial products (e.g., DBMS)

Re-usability

Interactive Development Environments

Programming Language(s) used

Deliverables

A Deliverable is a tangible or intangible good or service produced as a result of a project that is intended

to be delivered to the Custom er.

Project Managers must know the requirements satisfied by the Deliverable , when each Deliverable is

scheduled to be delivered to the Customer and the Tasks necessary to complete the deliverable .

The PMS shall provide a Project Manager with the capability to create Deliverables and list the

Deliverables created. The PMS shall permit a Project Manager to define the attributes listed

Deliverable

Requirement

Task

Deliverable

Requirement

Task

GUI

Deliverables

Tasks

Deliverable Input

Form

Deliverable List

Project

Management

System

Middleware

Database