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Ethan wants to sell his car. He purchased the car for $8000 two years ago. A used car dealer has offered him $4500, another buyer has offered him $5000, or he
A generalization relationship is drawn between a superclass and a subclass, showing the inheritance of properties and operations from the superclass by the subclass.
Other types of objects that can be identified include places, containers, organizations, business records, catalogs, and policies. In rare cases, processes themselves may need information stored about them. In these cases processes may need an object, in addition to a use case, to represent them.
Second, the responsibilities listed on the front of the CRC card must be included as operations in a class on a class diagram, and vice versa.
Common object lists are simply a list of objects that are common to the business domain. This involves the analyst ignoring the use cases and looking instead for physical or tangible things in the business domain, incidents that occur, or roles that people play in the business domain.
All of the choices are correct: found in the domains Bacteria and Archaea, in almost all habitats, and are structurally simple and metabolically complex. The biodiversity of a particular ecosystem is measured by. The relative abundance of the predator to prey to determine the growth patterns.
A university biology department wishes to hire a scientist to study the relationship among the wolves, moose, trees, and grass species on an island. If you were charged with writing the job announcement, you should title the position. Community Ecologist.
Evolution is biology's core theme that ties together all the other themes. This is because evolution explains . All of the above: explains why some organisms have traits in common, the unity and diversity of life, why distantly related organisms sometimes resemble each other, etc. What is a hypothesis.
A controlled experiment is one in which. there are at least two groups, one of which does not receive the experimental treatment. The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule.
You should now be familiar with the differences between OLTP and OLAP. In this exercise, you are given a list of cards describing a specific approach which you will categorize between OLAP and OLTP.
The city of Chicago receives many 311 service requests throughout the day. 311 service requests are non-urgent community requests, ranging from graffiti removal to street light outages. Chicago maintains a data repository of all these services organized by type of requests.
You have been hired to manage data at a small online clothing store. Their system is quite outdated because their only data repository is a traditional database to record transactions.
Imagine that you love running and data. It's only natural that you begin collecting data on your weekly running routine. You're most concerned with tracking how long you are running each week. You also record the route and the distances of your runs. You gather this data and put it into one table called Runs with the following schema:
Foreign key references are essential to both the snowflake and star schema. When creating either of these schemas, correctly setting up the foreign keys is vital because they connect dimensions to the fact table.
In the video, we saw how the book dimension differed between the star and snowflake schema. The star schema's dimension table for books, dim_book_star, has been loaded and below is the snowflake schema of the book dimension.
The novel genre hasn't been selling as well as your company predicted. To help remedy this, you've been tasked to run some analytics on the novel genre to find which areas the Sales team should target. To begin, you want to look at the total amount of sales made in each state from books in the novel genre.