State the data flow diagram of functional model, Database Management System

Assignment Help:

State the data flow diagram of functional model

Any action initiated by transition in the state diagram can be extended into an entire data flow diagram in functional model. The methods in a data flow diagram comprise of sub-operations that may be operational on original target object or on the other objects. We can determine target object of a sub-operation as below: 

i) If process extracts a value from I/P flow=> input, flow is target.

ii)  If process has same type of input and output flow and output value is the updated version of I/P => I/O, flow is the target.

iii)  If process has an I/P from data source or an O/P to a data source => data, source is a target of process.

iv) If process constructs O/P value from several inputs => operation is class operation on output class.

 


Related Discussions:- State the data flow diagram of functional model

Boyce-codd normal form (bcnf), Boyce-Codd Normal Form (BCNF) The relati...

Boyce-Codd Normal Form (BCNF) The relation NEWSTUDENT (Enrolmentno, Sno, Sname, Cname, Cno,) has every attributes participating in candidate keys as all the attributes are assu

Project, Preliminary entities and attributes of human resourse management d...

Preliminary entities and attributes of human resourse management database management system

Differentiate between various levels of data abstraction, Differentiate bet...

Differentiate between various levels of data abstraction? Data Abstraction - Abstraction is the procedure to hide the irrelevant things from the users and represent the rele

Relation schema for student, Example RELATION SCHEMA for STUDENT: STU...

Example RELATION SCHEMA for STUDENT: STUDENT (Roll No: string, name: string, login: string, age: integer) RELATION INSTANCE

State the steps of object design, State the Steps of Object Design ...

State the Steps of Object Design Object design is a very iterative process in which various classes, relationships among objects are added when you move from one level to

What is rdbms terminology for a row, What is RDBMS terminology for a row? ...

What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row

Multilevel indexing scheme, Multilevel Indexing Scheme Consider the ind...

Multilevel Indexing Scheme Consider the indexing scheme where the address of the block is consider in the index for each record, for a little file, this index would be little a

There are two major types of fragmentation, There are two major types of fr...

There are two major types of fragmentation: Horizontal& Vertical. Horizontal fragments, as the name suggests are subsets of tuples and vertical fragments are subsets of attributes

What is a candidate key, What is a candidate key? Minimal super keys ar...

What is a candidate key? Minimal super keys are known as candidate keys.

Case study, what problems are raised by the database? why is it so controve...

what problems are raised by the database? why is it so controversial? why is data quality an issue?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd