This chapter identifies various units and conversions. A checklist of issues associated with units is also given.

Introduction

Checklist of issues associated with Units in a project context
SI Units
Miscellaneous Units
Constants
Prefixes
Common Conversions
Wind Speeds and Sea States
Paper Sizes
Numbering Systems
Electromagnetic Spectrum

Requirements in general are covered under REQUIREMENTS.  This chapter considers what is meant by the term 'User Requirements', noting that it can be misunderstood, and also points out some of the problems in simply leaving it to existing system users to specify the requirement.

Introduction

Problems in improper use of term User Requirements
Potential Problems with user specified requirements