Who Ate My Buffer

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Information about Who Ate My Buffer
Technology

Published on December 14, 2008

Author: aviram37

Source: slideshare.net

Description

This presentation was given to a SW development managers audience as part of the Israeli SD managers forum with regards to SW development project management: effort estimates, performance metrics and control

Who Ate My Buffer Aviram Eisenberg

SW Development Project Statistics What is the percentage of SW development projects that fail to meet the deadline? More than 60%!

What is the percentage of SW development projects that fail to meet the deadline?

More than 60%!

The hectic world of fixed bids We live (or die) by our estimates One under estimate can eliminate the profit of five past projects Same resources are working on several projects in parallel – Fire extinguish mode New change requests are coming from the customer as the project reaches intermediate deliveries

We live (or die) by our estimates

One under estimate can eliminate the profit of five past projects

Same resources are working on several projects in parallel – Fire extinguish mode

New change requests are coming from the customer as the project reaches intermediate deliveries

Multi dimension problem Need to meet customer due dates Time buffer Need to maximize resource utilization Resource buffer Need to be profitable Cost buffer

Need to meet customer due dates

Time buffer

Need to maximize resource utilization

Resource buffer

Need to be profitable

Cost buffer

Case Study - Planned Milestone 1 Milestone 2 Buff1 Buff2 T1 T2 T3 T4 T1 T2 T3 T4 Overall Project Buff3 Planned Cost Buff

Case Study - Actual Milestone 1 Milestone 2 Buff1 Buff2 T1 T2 T3 T4 T1 T2 T3 T4 T5 T6 Overall Project Buff3 Planned Cost Buff

Who Ate My Buffer??? Reminder: this is the scenario of successful project! When all buffers are consumed an endless conflict of change vs. bug starts This is the unsolved problem of fixed bids: How to finish a fixed priced project with win-win feeling

Reminder: this is the scenario of successful project!

When all buffers are consumed an endless conflict of change vs. bug starts

This is the unsolved problem of fixed bids: How to finish a fixed priced project with win-win feeling

Something is missing… Time & Materials/Cost + Low margin for the provider High risk for the customer High overhead for the customer Due dates and budget are always missed Fixed bids High risk for the provider Low certainty for the provider High price for the customer Lack of transparency to the customer The endless argument of change vs. bug

Time & Materials/Cost +

Low margin for the provider

High risk for the customer

High overhead for the customer

Due dates and budget are always missed

Fixed bids

High risk for the provider

Low certainty for the provider

High price for the customer

Lack of transparency to the customer

The endless argument of change vs. bug

The clear box model Customer pay per resource profile Long term engagement Series of projects Define a cap for each project Time cap Budget cap Utilize Agile methodology Short delivery cycles Working software Manage features and not tasks

Customer pay per resource profile

Long term engagement

Series of projects

Define a cap for each project

Time cap

Budget cap

Utilize Agile methodology

Short delivery cycles

Working software

Manage features and not tasks

Q&A Aviram Eisenberg Ignite [email_address] +972 52 6005161

Aviram Eisenberg

Ignite

[email_address]

+972 52 6005161

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