Issue 8958: HardwareInstance Class                                                                                                                                                                                  (itpmf-ftf)
Source: Deere & Company (Mr. David C. Smith, smithdavec@johndeere.com  smithdavidc2@johndeere.com)
Nature: Uncategorized Issue
Severity: 
Summary: Please explain why there is a HardwareInstance Class.  I see it on the 'Essential' Diagram 8.3.1.4 and Deployment Diagram 8.3.1.3.  I expected to find PlatformElement at these points in the model.


Resolution: close, no change
Revised Text: 
Actions taken:
August 9, 2005: received issue
October 30, 2006: closed issue
Discussion: 
PlatformElement is at the 'type' level for example 'Departmental Server' or "Dell Model 242". HardwareInstance as its name suggests is a specific instance - for example "Dell Model 242 with serial number 123456". An actual deployment will therefore be related to a HardwareInstance. The relationship bwtween these is that of Deployment (i.e. the Dell Model 242 with serial number 123456 is a deployment of Dell Model 242. 
Section 7.3.12 explains this thus "HardwareInstance itself inherits from Deployment - indicating that each item of hardware is the deployment of the PlatformElement representing the Model of server."

End of Annotations:=====
erver-Uuid: E274C989-5FD5-45E1-B44F-97D6AB5FDB14 
Subject: IT Portfolio Management FTF 
Date: Tue, 9 Aug 2005 14:03:43 -0500 
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Thread-Topic: IT Portfolio Management FTF 
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From: "Smith Dave C" <SmithDavidC2@JohnDeere.com> 
To: issues@omg.org 
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Please explain why there is a HardwareInstance Class.  I see it on the 'Essential' Diagram 8.3.1.4 and Deployment Diagram 8.3.1.3.  I expected to find PlatformElement at these points in the model.

        Thanks, 
        Dave Smith