In order to ensure optimal database performance, the logical and physical design should consider the user requirements thoroughly. Suppose you have been hired to transform a conceptual model into a logical model for a sales database.
- Describe the specific steps that you must perform in order to appropriately construct the database model.
- Speculate the risks that might present themselves for each step mentioned, and how you would avoid or mitigate those risks.
- Be sure to respond to at least one of your classmates' posts.
13 hours ago
Jamie Cabbagestalk
RE: Week 6 Discussion
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1. Primary Keys
2. Logical Database model which entails the characteristics and subjects
3. Conceptual Database model which entails information regarding the relationships associated with the entities and their attributes
4. Normalize the database
When constructing a database model one needs to create a table for unique identifiers. A data model design needs to be created prior to its creation. One needs to establish the purpose of the model in order to design an efficient data model. After establishing a purpose, the entities/objects of that model should be identified. Once that process is complete, attributes can be connected to their corresponding entities within the model. At this point, one can then form relationships such as one-to-one, one-to-many, and many-to-many to list a few. An example of one-to-many, a person who goes shopping at a mall, and that one person make multiple transactions. After this point, one can normalize the database.
Each of these steps is subject to risk. If one does not have a thorough understanding of the purpose of the data model, then the design of the model may not have the components that the data model needs. This may cause the data model to become insufficient for that person or business. The next risk is one not properly defining what the entities are and their attributes. These factors wican cause incorrect relationshipsnto be made. The final risk is one failing to normalize the database, this may cause the database to become harder to modify. To mitigate these issues one should thoroughly define all components of the diagram,and research the purpose and needs for the diagram before designing the diagram model. Also in efforts to mitigate possible risk, it is important that one check the attributes and relationships that are made for any possible errors. Finally, one needs to ensure that he/she normalizes the data model.
Yasar, Kinza.October 2022.Primary Keyword. https://www.techtarget.com/searchdatamanagement/definition/primary-key#:~:text=A%20prim
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