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An object-oriented design process
1. Define the context and modes2. Designs the system architecture 3. Identifies the principal system objects 4. Identifies concurrency in the problem 5. Handling boundary conditions 6. Develops design models 7. Specifies object interfaces
Object oriented design is concerned with creating OO model of software systems to implement identified requirement during analysis phase.
Figure: Software life cycle activity
Depending upon the rules we have found, we can classify the locks into two types. Shared Lock: A transaction might be acquiring shared lock on a data item in order to read it
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
Consider the two relations given below Given that A is the primary key of R, D is the primary key of S and there is a referential integrity among S.A and R.A, discuss all
How to draw an ER diagram to a finance companz
Why is database design important?
Explain heap file with advantages? Heap File is an unordered set or a group of records, stored on a set of pages. This class gives basic support for inserting, updating, select
Difference between SQL and SQL*Plus SQL SQL*Plus SQL is a language SQL *Plus is an environment It is bas
discuss the purpose of the concurrency control?
While sorting field groups we cannot use more than one key field False.
An entity set that does not have sufficient attributes to form a primary key is called? An entity set that doesn't have sufficient attribute to form a primary key is known as w
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