Answer: Context diagram
Step-by-step explanation:
The context diagram is one of the type of engineering tool which is specifically used for defining the boundaries of the parts in the system.
The context diagram is one of the block diagram type and it also include various types of eternal entities such as company group, data stores and the system.
According to the given question, the context diagram is basically used in the structured system analysis and designing model for analyzing the management process.
Therefore, Context diagram is the correct answer.