Initial operating capability: Difference between revisions

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|archiveurl = https://web.archive.org/web/20130305091012/http://www.dau.mil/pubscats/Pages/preface.aspx

|archivedate = 2013-03-05

}}</ref></blockquote>The date at which IOC is achieved often defines the in-service date (ISD) for an associated [[system]]. Declaration of an initial operating capability may imply that the capability will be developed in the future, for example by modifications or adjustments to improve the system's performance, deployment of greater numbers of systems (perhaps of different types), or testing and training that permit wider application of the capability.<ref>Defense Acquisition University [https://akss.dau.mil/askaprof-akss/qdetail2.aspx?cgiSubjectAreaID=14&cgiQuestionID=1514 Ask a Professor]{{Dead link|date=January 2020 |bot=InternetArchiveBot |fix-attempted=yes }} 1998-05-08</ref> Once the capability is fully developed, [[full operational capability]] may be declared.<ref>Defense Acquisition University [https://akss.dau.mil/askaprof-akss/qdetail2.aspx?cgiSubjectAreaID=12&cgiQuestionID=3060 Ask a Professor]{{Dead link|date=January 2020 |bot=InternetArchiveBot |fix-attempted=yes }} 1999-03-01</ref>

For example, the capability may be fielded to a limited number of users with plans to roll out to all users incrementally over a period (possibly incorporating changes along the way). The point at which the first users begin using the capability is IOC, with FOC achieved when all intended users (by agreement between the developer and the user) have the capability. This does not preclude additional users from obtaining the capability after FOC.