Typically this would be Unified Modeling Language (UML). See the related Wikipedia link for details.
D. hierarchy chartPage 83Tony Gaddis
hierarchy charts
What is the difference between a hierarchy of modules and a flowchart.
The degree of interaction between two modules is known as cohesion.
High Level design
It takes one address line to choose between two modules.
Probably start with a data model preferably a class diagram of the modules involved in school management system. Just keep minimum modules to avoid complexity. For eg. Teacher, Students, Classrooms, Subjects & Library.How you define relationships between different entities would define the tables and relationships between them for eg Library Table should have student id as foreign key & borrowed field as boolean (yes or no). If book is borrowed it will look into the student table for ID based on foreign key.Just remember to keep it simple. Don't get too bogged down by complex relationships and focus on simple yet elegant tables
Constant Variables
what r the modules
Coupling is a measure of the relationship or dependency between two modules. Data Coupling occurs between two modules when data is passed by parameters using a simple argument list and every item in the list is used.
DDR Memory modules have only one notch on the contact strip, positioned just off-centre. Hence DDR modules will not fit in an SD slot. SD Memory Modules have two notches.
i think module life cycle manage program..