Object oriented architecture organizes software around discrete objects that incorporate both data structures and behavior. This contrasts with procedural approaches that emphasize "doing" things rather than data. Objects have identifiable characteristics and behaviors, and are instances of classes. Classes group objects that share common properties and relationships. Key principles of object oriented architecture include identification, classification, polymorphism, inheritance, and abstraction. Object oriented methodology for ERP uses the Object Modeling Technique which involves problem analysis, system design, object design, and implementation. OMT uses three models - the object model describing system objects and relationships, the dynamic model describing system changes over time, and the functional model describing data value transformations.

1. OBJECT ORIENTED ARCHITECTURE IN
ERP
Submitted by:
• PREYANSHU KR. SAINI

2. “What object oriented means”??
• Means we organize s/w as a collection of
discrete objects that incorporate both “data
structure “ and “behaviour”.
• * it shows a contrast to conventional
programming and architectural approaches
such as “procedural approach”,i.e. they
emphasised on “doing” things rather than
“data”.

3. • Objects : an identifiable entity (real or
abstract) with some characterstics and behaviour.
An object is an instance of a class.
Eg. REAL OBJECTS:
3-WHEELER
4-WHEELER
AUTOMOBILE
(class)

4. Eg. ABSTRACT OBJECTS :
JADOOO IN “KOI MIL GAYA” :

5. • Attributes* : features that define charaterstics
of objects.
• *2 objects are distinct even if all their
attribute values are identical.

6. • Operations/funtions:
describe the behaviour of the objects. It is a way to
access the attributes.
Eg: LOVE
• Class :
It is a group of objects that share common properties
and relationships.
Eg : BOYS and GIRLS
BOYS object: PG
GIRLS object: X
Love operation performed on
PG and X gets access to their
attributes “DIL” and “DIMAAG”.
PG X

7. Characterstics of object oriented
architecture
• IDENTIFY : means that data is quantized into
discrete ,distinguishable entities called
objects.Eg. Paragraphs in a document.
• CLASSIFICATION : objects with same data
structure are grouped into a class.
Eg. Classification on Gender basis .

8. • POLYMORPHISM : The ability of a data or a message to
be executed in more than one form is called
polymorphism.
Eg. Case 1:
a and b are objects of class integer.
a = 1 ; b = 2
a + b = 3
Case 2:
a and b are objects of class character.
a + b = ‘ab’ is string.
• In both cases operator is same but result is different.

9. • Real life eg. of polymorphism:
Natural love unnatural love
# operation performed in both the cases is LOVE
but outcome is different.

10. • INHERITANCE:
Capability of one *class of things to inherit
properties from other **class of things.
**Super class
* Sub class
• ABSTRACTION :
The act of representing essential features
without including background details or
explanations .

11. • OBJECT ORIENTED METHODOLOGY-
To employ OOA in ERP we follow an approach called
the OBJECT MODELLING TECHNIQUE (OMT) . It has
following states :
1. Problem Analysis
2. System Design
3. Object Design
4. Implementation

12. • THREE MODELS:
OMT uses three kinds of models to describe a
system.
1. Object model :
Describes the objects in the system and their
relationships.
2. Dynamic model :
Describes the ospects of the system that change
over time, uses STATE diagrams.
3. Functional model :
Describes the data value trasformations within a
system, uses a DFD graph.