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Utility Abstraction Pattern
{{notability|date=March 2010}}
'''Utility Abstraction''' is a [[Design_pattern_(computer_science)|design pattern]], applied within the [[service-orientation]] [[Design_paradigm|design paradigm]], which advocates designing services<ref name='svc'>[http://www.whatissoa.com/p11.php Services]</ref> that provide cross-cutting<ref name="cross-cutting">Functionality that is based on logic which is not related to any particular business process e.g. the requirement to log incoming messages may be required by multiple business processes.</ref> non-business <ref name="non-business"> Functionality that is based on logic which is not(contracted; show full)

* Setting the functional boundary according to the specific technology to which the utility service provides an interface e.g. a utility service for talking to a [[ERP_software|ERP]] system.
* Identifying the functional boundary according to the category of utility functions e.g. a utility service that performs [[
Encryption|encryption]] and decryption of messages.

<br/>
The utility services are mostly used as helper services from multiple business process-specific logic, each having specific requirements, consequently it is better to design utility services that are based on targeted and specific functional contexts rather than vague functional contexts that pack a range of functions. This is important as it not only helps to keep the maintenance overhead of such services to a minimum but also increases the reuse potent(contracted; show full)

== References ==
{{Reflist}}
* Erl et al,(2009).[http://www.amazon.com/gp/product/0136135161/ref=s9_simi_gw_p14_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-1&pf_rd_r=0FBSA23BKC0AXWVZ5Q9G&pf_rd_t=101&pf_rd_p=51471022&pf_rd_i=507846 SOA Design Patterns]. Prentice Hall. ISBN 0
-13-613516-1.
* Jason Hogg.[http://74.125.77.132/search?q=cache:EvGPjZorQQoJ:blogs.msdn.com/thehoggblog/attachment/9911966.ashx+utility+abstraction+pattern&cd=11&hl=en&ct=clnk&gl=uk SOA, Software + Services and Cloud Computing][Online].Date accessed: 17 April 2010.
* Susanne Patig.[http://drops.dagstuhl.de/opus/volltexte/2009/2047/pdf/09021.PatigSusanne.Paper.2047.pdf Cases of Software Services Design in Practice][Online].Date accessed: 18 April 2010.

== External links ==
* [http://www.whatissoa.com/ SOA Concepts]
* [http://www.soaglossary.com/ SOA Terms Glossary] 
* [http://www.soapatterns.org SOA Design Patterns]
 
[[Category:Service-oriented (business computing)]]