Podcast
Questions and Answers
What does the acronym CRUD stand for in the context of physical data flow diagrams?
What does the acronym CRUD stand for in the context of physical data flow diagrams?
- Create, Read, Update, Delete (correct)
- Create, Report, Update, Delete
- Control, Review, Update, Delete
- Create, Review, Update, Delete
What is a characteristic of physical data flow diagrams compared to logical data flow diagrams?
What is a characteristic of physical data flow diagrams compared to logical data flow diagrams?
- They are used for designing databases.
- They are less complex due to fewer data stores.
- They are more complex due to the many data stores present. (correct)
- They are used for analyzing user groups.
What is the primary purpose of a series of layered data flow diagrams?
What is the primary purpose of a series of layered data flow diagrams?
- To create a list of data stores
- To analyze detailed procedures in the larger system (correct)
- To design a new system from scratch
- To identify external entities in the system
What is the purpose of a CRUD matrix?
What is the purpose of a CRUD matrix?
What is an external entity in the context of a data flow diagram?
What is an external entity in the context of a data flow diagram?
What is an intermediate data store used for?
What is an intermediate data store used for?
When should processes be grouped into separate computer programs?
When should processes be grouped into separate computer programs?
How are data flows that occur simultaneously depicted in a data flow diagram?
How are data flows that occur simultaneously depicted in a data flow diagram?
What is a key characteristic of a data flow leaving a process?
What is a key characteristic of a data flow leaving a process?
What is a consideration when deciding how to group automated procedures into computer programs?
What is a consideration when deciding how to group automated procedures into computer programs?
What type of data stores are not included on a data flow diagram?
What type of data stores are not included on a data flow diagram?
What is the first step in drawing a data flow diagram?
What is the first step in drawing a data flow diagram?
What is the cardinality of processes that can be included in a context diagram without making it cluttered?
What is the cardinality of processes that can be included in a context diagram without making it cluttered?
How are the processes numbered in a context diagram?
How are the processes numbered in a context diagram?
What is the concept of tracing a series of processes through many levels of explosion?
What is the concept of tracing a series of processes through many levels of explosion?
What is the correct order of creating data flow diagrams?
What is the correct order of creating data flow diagrams?
What is a characteristic of a context diagram?
What is a characteristic of a context diagram?
What is a result of exploding a process on a diagram?
What is a result of exploding a process on a diagram?
