Category Archives: Requirements Definition

Functional and Non-Functional Requirements

Functional Requirements Something that the system must do (Robertson & Robertson 1999) – the most common type of requirement Example: The web-site system shall purchase a request ticket Functional requirements must be measurable and testable. Non-Functional Requirements They express the … Continue reading

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Definitions of Requirement

Desirable property of something to be tested Something that product must do or quality that the product must have (Roberts & Robertson 2006) Expression of the required phenomena that are shared between a machine and the domain or environment (Jackson … Continue reading

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The London 2012 Olympics Ticketing System

Why it is important to gather requirements for a social-technical system. The London 2012 Olympics Ticketing System http://www.youtube.com/watch?v=fmX5zKFEzQU Reference: Neil Maiden (2011) Requirements Engineering Lecture Notes

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Requirements Engineering – Lecture 1

What is a Social-Technical System? It is a system which involves human, organisational, hardware and software components that interact and depend upon each other in complex ways. Why it is important in Requirements Engineering? Requirements need to be specified on … Continue reading

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