View source for FURPS

{{Short description|Model for classifying software quality attributes}}
'''FURPS''' is an acronym representing a model for classifying software quality attributes (functional and non-functional requirements):

* [[Functional requirement|'''F'''unctionality]] - Capability (Size & Generality of Feature Set), Reusability (Compatibility, Interoperability, Portability), Security (Safety & Exploitability)
* [[Usability|'''U'''sability]] (UX) - Human Factors, Aesthetics, Consistency, Documentation, Responsiveness
* [[Reliability engineering|'''R'''eliability]] - Availability (Failure Frequency (Robustness/Durability/Resilience), Failure Extent & Time-Length (Recoverability/Survivability)), Predictability (Stability), Accuracy (Frequency/Severity of Error)
* [[Computer performance|'''P'''erformance]] - Speed, Efficiency, Resource Consumption (power, ram, cache, etc.), Throughput, Capacity, Scalability
* '''S'''upportability (Serviceability, Maintainability, Sustainability, Repair Speed) - Testability, Flexibility (Modifiability, Configurability, Adaptability, Extensibility, Modularity), Installability, Localizability

The model, developed at [[Company:Hewlett-Packard|Hewlett-Packard]] was first publicly elaborated by Grady and Caswell. ''FURPS+'' is now widely used in the software industry. The ''+'' was later added to the model after various campaigns at HP to extend the acronym to emphasize various attributes.

== See also ==
* [[Requirement#Types of requirements|Types of requirements]]
* [[Requirements analysis#Types of requirements|Expanded list of types of requirements]]

== Further reading ==

* {{cite book
  | last = Watson
  | first = Mike
  | title = Managing Smaller Projects: A Practical Approach
  | publisher = Multi-Media Publications Inc.
  | year = 2006
  | pages = 117 ff
  | isbn = 978-1-895186-85-7}} 
*{{cite book
  | last = Kenett
  | first = Ron
  |author2=Baker, Emanuel
  | title = Software Process Quality: Management and Control
  | publisher = CRC Press
  | year = 1999
  | pages = 130 ff
  | isbn = 978-0-8247-1733-9}}
*{{cite journal
 | last1 = Nakajo | first1 = Takeshi
 | last2 = Sasabuchi | first2 = Katsuhiko
 | last3 = Akiyama | first3 = Tadashi
 | title = A Structured Approach to Software Defect Analysis
 | journal = Hewlett-Packard Journal
 | volume = 40
 | issue = 2
 | pages = 50–56
 | publisher = Hewlett-Packard Co.
 | location = Palo Alto
 | date = April 1989
 | url = http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1989-04.pdf}}
*{{cite journal
 | last1 = Fischer | first1 = William A., Jr.
 | last2 = Jost | first2 = James W.
 | title = Comparing structured and unstructured methodologies in firmware development
 | journal = Hewlett-Packard Journal
 | volume = 40
 | issue = 2
 | pages = 80–85
 | publisher = Hewlett-Packard Co.
 | location = Palo Alto
 | date = April 1989
 | url = http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1989-04.pdf}}
*{{cite book
  | last = Grady
  | first = Robert
  | author2 = Caswell, Deborah
  | title = Software Metrics: Establishing a Company-wide Program
  | publisher = Prentice Hall
  | year = 1987
  | pages = [https://archive.org/details/softwaremetricse00grad/page/159 159]
  | isbn = 0-13-821844-7
  | url = https://archive.org/details/softwaremetricse00grad/page/159
  }}
*{{cite book
  | last = Carter
  | first = Donald
  | author2 = Stilwell Baker, Barbara
  | title = Concurrent Engineering, The Product Development Environment for the 1990s
  | publisher = Addision-Wesley
  | year = 1992
  | pages = [https://archive.org/details/ceconcurrentengi00cart/page/175 175]
  | isbn = 0-201-56349-5
  | url = https://archive.org/details/ceconcurrentengi00cart/page/175
  }}

== External links ==
* [https://web.archive.org/web/20201112020231/http://www.ibm.com/developerworks/rational/library/4706.html#N100A7 IBM on Furps+]

[[Category:Software requirements]]



{{Sourceattribution|FURPS}}