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By William Smyth

The computation of styles in strings is a basic requirement in lots of parts of technological know-how and knowledge processing. The operation of a textual content editor, the lexical research of a working laptop or computer application, the functioning of a finite automaton, the retrieval of data from a database - those are all actions that may require that styles be positioned and computed. In different parts of technological know-how, the algorithms that compute styles have purposes in such assorted fields as information compression, cryptography, speech acceptance, desktop imaginative and prescient, computational geometry and molecular biology.

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However, database tables typically contain a lot more columns than a class contains attributes (tables often have foreign keys, as one example), so there may not be a direct 1:1 mapping between table rows and objects. 4. Use the Domain Model As a Project Glossary If ambiguous requirements are the enemy, the domain model is the first line of defense. Ambiguous usage of names by “subject matter experts” is very common and very harmful. The domain model should serve as a project glossary that helps to ensure consistent usage of terms when describing the problem space.

Make sure the sequence diagram matches the use case text. 9. Make sure (yes, again) that each sequence diagram accounts for both basic and alternate courses of action. 8. Make sure that operations have been allocated to classes appropriately. 7. Review the classes on your class diagrams to ensure they all have an appropriate set of attributes and operations. 6. If your design reflects the use of patterns or other detailed implementation constructs, check that these details are reflected on the sequence diagram.

Clean up the static model before proceeding to the CDR. By now, you’re almost ready to begin coding. You’ll need to perform a Critical Design Review (CDR) first; but before that, it pays dividends to revisit the static model and clean it up. Cleaning Up the Static Model Take a long, hard look at your static model, with a view toward tidying up the design, resolving real-world design issues, identifying useful design patterns that can be factored in to improve the design, and so on. This should at least be done as a final step before proceeding to the CDR, but you can start thinking at this level in the design before drawing the sequence diagram.

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