View source for Implementing and Proving a Solution

----
'''''Lead Author:''''' ''Rick Adcock'', '''''Contributing Authors:''''' ''Brian Wells, Scott Jackson, Janet Singer, Duane Hybertson''
----
[[File:PPI.png|thumb|250px|right|<center>The "Systems Approach Applied to Engineered Systems" knowledge area is graciously sponsored by PPI.<center>]]
This topic is part of the [[Systems Approach Applied to Engineered Systems]] knowledge area (KA).  It describes knowledge related to the {{Term|Implementation (glossary)|implementation}} and {{Term|Proving (glossary)|proving}} of a preferred {{Term|Solution (glossary)|solution}} that may have been selected by activities described in the [[Analysis and Selection between Alternative Solutions]] topic.  The activities that apply to an implemented solution during its operational life are described in [[Deploying, Using, and Sustaining Systems to Solve Problems]] topic, and how {{Term|System (glossary)|systems}} fit into commercial and acquisition relationships is discussed in the [[Introduction to System Fundamentals]] topic. Any of the activities described below may also need to be considered {{Term|Concurrently (glossary)|concurrently}} with other activities in the {{Term|Systems Approach (glossary)|systems approach}} at a particular point in the life of a {{Term|System-of-Interest (glossary)|system-of-interest}} (SoI). 

The activities described below should be considered in the {{Term|Context (glossary)|context}} of the [[Overview of the Systems Approach]] topic at the start of this KA.  The final topic in this KA, [[Applying the Systems Approach]], considers the dynamic aspects of how these activities are used as part of the systems approach and how this relates in detail to {{Term|Element (glossary)|elements}} of {{Term|Systems Engineering (glossary)|systems engineering}} (SE).

==Proving the System Overview==

This topic covers both the sub-topics of verification and validation. 

===Verification===

{{Term|Verification (glossary)|Verification}} is the determination that each element of the system meets the {{Term|Requirement (glossary)|requirements}} of a documented specification (see principle of elements). Verification is performed at each level of the system hierarchy. In the systems approach, this topic pertains to the more abstract level of providing evidence that the system will accomplish what it was meant to do.  In SE, this topic pertains to providing quantitative evidence from tests and other methods for verifying the performance of the system.

===Validation===

{{Term|Validation (glossary)|Validation}} is the determination that the entire system meets the needs of the {{Term|Stakeholder (glossary)|stakeholders}}. Validation only occurs at the top level of the system hierarchy. In the systems approach, this topic pertains to the more abstract level of ensuring the system meets the needs of the stakeholders. In SE, this topic pertains to the detailed demonstrations and other methods that are used to promote stakeholder satisfaction.   

In a SE context, Wasson provides a comprehensive guide to the methods of both system verification and system validation (Wasson 2006, 691-709).

==References== 

===Works Cited===
Wasson, C. S. 2006. ''System Analysis, Design, and Development.'' Hoboken, NJ, USA: John Wiley & Sons.

===Primary References===
Jackson, S., D. Hitchins and H. Eisner. 2010. "[[What is the Systems Approach?|What is the systems approach?]]"  INCOSE ''Insight'', vol. 13, no. 1, April, pp. 41-43.

===Additional References===
MITRE. 2012.  "Verification and validation," in ''Systems Engineering Guide. '' Available at: http://mitre.org/work/systems_engineering/guide/se_lifecycle_building_blocks/test_evaluation/verification_validation.html. Accessed September 11, 2012.

Wasson, C. S. 2006. ''System Analysis, Design, and Development.'' Hoboken, NJ, USA: John Wiley & Sons.

----
<center>[[Analysis and Selection between Alternative Solutions|< Previous Article]] | [[Systems Approach Applied to Engineered Systems|Parent Article]] | [[Deploying, Using, and Sustaining Systems to Solve Problems|Next Article >]]</center>

<center>'''SEBoK v. 2.10, released 06 May 2024'''</center>

[[Category:Part 2]][[Category:Topic]]
[[Category:Systems Approach Applied to Engineered Systems]]