Summary of wrong questions of software designers

1、（） It's not a tool for information system planning
A、PERT chart
B、R/D matrix
C、E-R chart
D、CU matrix
right key :C
analysis ：
ER Figure is used in system design , Not a system planning tool .
We will analyze the other options one by one
PERT( Program Evaluation and Review Technique, Plan review technology )： Use network diagram to express the progress of various activities in the project and the relationship between them

R/D matrix ： On the basis of investigation and interview , We can use the entity method to summarize the data class . The substantive law first lists the resources of the enterprise , One more resource ／ data ( Resource/Data,R/D) matrix .

CU matrix ： After defining enterprise process and data class , It can be a business process , Take the data class as the column , According to the enterprise process to generate data class relationship to fill in C(Create), Fill in... Using data class relationships U(User), formation CU matrix