MIS 3320 BAYLOR Final review Actual Exam 2024/2025
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MIS 3320 BAYLOR
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MIS 3320 BAYLOR
MIS 3320 BAYLOR Final review Actual Exam 2024/2025
class diagrams
used to model classes & their associations with other classes
-UML diagram
-object oriented (OO) diagram (used for OOAD, OOP/OOPL, OODB)
domain model class diagram
-in analysis phase
-model objects in the problem domain (t...
MIS 3320 BAYLOR Final review
Actual Exam 2024/2025
class diagrams
used to model classes & their associations with other classes
-UML diagram
-object oriented (OO) diagram (used for OOAD, OOP/OOPL, OODB)
domain model class diagram
-in analysis phase
-model objects in the problem domain (things that need to be remembered)
-PK identified as {key}
-similar to ERD
-domain models go to DBA and programmer
design class diagram
-in design phase
-model software classes (data types: string, date, int, etc)
-top part is domain model plus data types, bottom part listed with + & functions or methods
ERD vs Domain Model Class Diagram terminology
-entity --> domain class (data)
-attribute --> attribute
-relationship --> association
-cardinality --> multiplicity
-instance --> object (or instance)
order: domain/data class
order form: GUI class (graphical user interface, software)
domain classes
-contain attributes
-used to instantiate objects (create an object as an instance)
-cookie cutter analogy
OOP/OOPL
OOProgramming & OOProgrammingLanguages
-primary keys may be modeled but are not required because objects can be associated by reference
(unique ID automatically created BUT relational databases need primary keys, so we will add them
except for subclasses & association classes)
-UML notation: attribute {key}
-OODataBases
class diagram associations
multiplicities: min..max, many is *, specific numbers allowed (ex. 4..7)
association class
generalization hierarchy (is-a)
whole-part association (has-a)
,association class
-same as ERD associative entity
-resides only on many to many
-UML notation: dashed line extending from the many to many relationship, keep the M:M line, do not
add a primary key
Generalization Hierarchy
aka specialization hierarchy
-generalize as move up
-specialize as move down
-triangle always points to superclass & specific (away from arrow) are subclasses
-inheritance is in effect--all attributes are inherited from superclass to subclass
-an is-a association (read from bottom up)
-only for things of the same type
superclass known as: generalization, base, parent class
-class being inherited by another (subclass)
-top class
subclass known as: specialization, derived, child class
-class that inherits from another class
-extends the superclass
abstract class vs concrete class
abstract
-notation: italicized
-designed to not be instantiated (no objects of this type)
-only make superclass abstract if all subclasses are represented & no other types
concrete
-notation: plain text
-designed to be instantiated (objects created for this type)
when to create a generalization
1-has own unique attributes (some objects do not share the same attributes)
2-has associations not at the top
whole-part hierarchy
-used to represent has-a association
-2 types: aggregation & composition
-diamond is attached to the whole
-still includes multiplicities
aggregation vs composition
aggregation
-removable parts
-has a but parts can exist separately
-loosely coupled
-empty diamonds
, composition
-has a but parts cannot exist separately
-non-removable, stronger
-tightly coupled
-filled in diamonds
UML
Unified Modeling Language
-OO modeling language consisting of multiple types of diagrams
-3 Amigos: James Rumbaugh, Grady Booch, & Ivar Jacobson
-Rational Unified Process (RUP): OO systems development methodology
-adopted & managed by OMG (Object Management Group)
types of UML diagram
•Structure diagrams - Class diagram, Component diagram, Deployment diagram, Object diagram,
Package diagram, etc.
•Behavior diagrams - Activity diagram, Use Case diagram, Sequence diagram, State machine,
Communication diagram, etc.
use case diagram
•a UML diagram depicting the relationship between actors & use cases
-shows scope of system
-functionality: use cases
-reuse of code
UML Activity Diagram
a graphical representation of procedural flow that includes activities people, systems, and flows which
are sequential, conditional, & repetition
-used to model business processes & use cases (BPMN: business process modeling notation)
**user interface
the way in which the user interacts with the system
-the set of inputs & outputs that the user interacts with to invoke the functions of an application
user experience (UX) design
a broad field that looks at all aspects of a person's interaction with a product
-product: functionality, usability
-user: who are they, their perceptions & feelings, motivations, & values are considered
GOAL: create positive experiences
-increased user satisfaction (increased brand loyalty, increased product promotion by user, increased
sales)
UX Researcher
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