Object identification in object models means that every object instance has a unique, unchanging identity. Object identification is often referred to as an OID. OIDs are used to reference object instances.
Characteristics of OIDs:
- OIDs are independent of data contained in the object. The internal data values are not used to generate identification.
- OIDs are generated by the object system. Users or programs have no control over identification.
- OIDs last the lifetime of the object. The OID never changes even when the data contents may change.
More on the general topic: Data Abstraction
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The Savvy Manager's Guide
Douglas K Barry is also the author of a book that explains Web Services, service-oriented architecture, and Cloud Computing in an easy-to-understand, non-technical manner.
Web Services, Service-Oriented Architectures, and Cloud Computing: The Savvy Manager's Guide (Second Edition)
by Douglas K Barry with David Dick
This is a guide for the savvy manager who wants to capitalize on the wave of change that is occurring with Web Services, service-oriented architecture, and—more recently—Cloud Computing. The changes wrought by these technologies will require both a basic grasp of the technologies and an effective way to deal with how these changes will affect the people who build and use the systems in our organizations. This book covers both issues. Managers at all levels of all organizations must be aware of both the changes that we are now seeing and ways to deal with issues created by those changes.