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The following suggestions provide some guidance for structuring the existing inventory of use cases using the ODP community concepts:

1. Adopt use case levelling to organize use cases in categories and relate these categories to each other; a side effect of this is that re-usable sequences can be identified, thus removing duplication and promoting reuse of both requirements and solution approaches.
2. Map the levelled use cases to the respective community models; note that this is inevitably a human activity, guided by rules defined in Table 3.1-1. This table can also be used when analysing narrative text of use cases to identify interactions between the User and the System role.
3. Analyse the actions and interactions associated with system roles in the community and map them to appropriate candidate Enterprise Services.
4. Analyse whether there are possible sub-communities and/or relationships with other communities.

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