Project Management
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Project Management

# What is Order Of Magnitude?

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Order of magnitude is a rough measurement technique that considers things in powers of ten. Anything less than a power of ten is rounded down for the purposes of comparison. For example, revenue of \$1 million and \$4 million would be considered the same order of magnitude. Revenue of \$60 million dollars is one order of magnitude more than \$1 million. A way of thinking about order of magnitude is that it only considers how many zeros a number has in it. Any two numbers that have the same number of zeros are the same order of magnitude.
 Examples: Order of Magnitude start end order of magnitude 1 9 0 10 99 1 100 999 2 1000 9999 3 10,000 99,999 4 100,000 999,999 5 1,000,000 9,999,999 6 10,000,000 99,999,999 7 100,000,000 999,999,999 8 1,000,000,000 9,999,999,999 9
 Overview: Order Of Magnitude Type Computational Mathematics Definition An approximation technique that reduces numbers to their powers of 10. Value Making approximations of big numbers where precision is meaningless or exact values are unknown. Assigning numbers to general categories for the purposes of comparison.Often used to compare the speed of algorithms and estimate the complexity of problems in science, particularly computer science. Examples An economy car costs two orders of magnitude more than a bicycle.Interstellar space travel is many orders of magnitude more complex and costly than landing on the moon. Related Concepts Algorithms

## Project Management

This is the complete list of articles we have written about project management.
Acceptance Criteria
Acceptance Testing
Actual Cost
Agile
Assumptions
Baseline
Basis Of Estimate
Behavioral Requirements
Burndown Chart
Change Control
Change Control Board
Change Fatigue
Change Request
Concept Note
Cone Of Uncertainty
Constraints
Corrective Action
Cost Baseline
Cost Contingency
Cost Control
Cost Overrun
Cost Variance
Defect
Defect Density
Definition Of Done
Deliverable
Document Control
Earned Value
Escalation
Estimate At Completion
Estimate To Complete
Estimates
Feasibility Analysis
Fudge Factor
Full-Time Equivalent
Human Factors
Issue Management
Issues
Lessons Learned
Level Of Effort
Milestone
Opportunity Study
Out Of Scope
Parametric Estimate
Phased Implementation
Planned Value
Principles
Process
Program Management
Project Charter
Project Communication
Project Complexity
Project Concept
Project Controls
Project Failure
Project Goals
Project Management
Project Metrics
Project Planning
Project Productivity
Project Proposal
Project Risk
Regression Testing
Requirements
Requirements Quality
Return On Investment
RFP
Risk Register
Schedule Baseline
Schedule Chicken
Scope
Scope Baseline
Scope Creep
Scrum
Set Up To Fail
Smoke Testing
Specifications
Sprint
Stakeholder
Stakeholder Management
Statement Of Work
Story Points
Subproject
Use Case
User Stories
Variance Analysis
Workaround

## Project Risk

A list of common project risks.

## Project Management Basics

A list of basic project management techniques.

## Workaround

A definition of workaround with examples.

## Project Branding

A list of project branding techniques.

## Stakeholder Management

An overview of project stakeholder management with examples.

## Action Plan

A definition of action plan with examples.

## Cost Overrun

The primary types of cost overrun.

## Document Control

The definition of document control with examples.

## Project Oversight

A guide to project oversight.

## Design-Driven Development

A definition of design driven development with examples.

## Project Risk

A list of common project risks.

## Project Stakeholder

A list of common project stakeholders.

A list of common business risks.

## Risk vs Issue

The difference between a risk and an issue.

## Risk Treatment

The five things that can be done about risk.

## Secondary Risk

The definition of secondary risk with examples.

## Risk Register

A guide to creating a risk register with an example.

## Risk Perception

A definition of risk perception with examples.

## Implementation

The common types of implementation.

## Project Risk Management

A reasonably complete guide to project risk management.
The most popular articles on Simplicable in the past day.

## New Articles

Recent posts or updates on Simplicable.
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