Question

answer each question separately.

• How is behavioral modeling related to functional and structural modeling?
• How do functional, structural, and behavioral models work together to describe a whole system?
• Think about an ATM and its functionality. If you were creating a functional model for an ATM, what would be the use cases for that system?
  Note: You do not need to create a functional model or diagram. You may just describe the use cases.
• Based on the use cases you described, what objects might you need for an ATM system?

Answer 1

Question-1

Answer-

Behavioral Modeling describes the interaction in the system (means how each system sub-system /will communicate as per design ).It shows the interaction among the structural digram.It shows the dynamic nature of the system.

It contains

-Active diagram

-Interaction diagrams

-use case

-Aspect diagram

-Control Commanding etc.

Where Structural modeling consists of static /fixed features of a system.It has bellow info like

-Class diagrams

-Objects diagrams

-Deployment diagrams

-Individual/all components diagrams

Structural models show the frameworks for the actual system.Structural models never describe the dynamic behaviour of the system.

-In the Functional Modeling s/f(software) converts all information and to accomplish this,it must perform some common tasks like input,processing,output.

Question-2

Answer-

For a System the architecture first decides what are the main thing suuposed to do by the system .Functional modeling is a structure represents the things like activity, process, actions.operations...

when for a system we decided the functionality then we need to decide each behavior of an activity or an operation.Thats comes under behavioral model.

For a system behavioral models are dynamic behavior that should executing inside a system.
It shows what is supposed ot happen when a system responds to a stimulus from t's own enviroment. Basically the stimuli cab of two types-
data-when some sata arrives that needs to processed by the system or that need to store through the system
Events- when any events haapens then system should start some processing and there can be possibiliy a event may have associated data.

After deciding behavior for an each activity or an operation we need to implements those activity or operation based on the their behavior by designig structure.That comes under structural modeling..

Structural modeling of a system is combine of all components of system, how all components are interacting with each other how the data flow goes inside all the components. It shows the picture of enitre system. We can describe structural modeling of a system using daigrams like
UML diagrams, individual components diagram, class diagram...

Question-3

Answer

Functional model for an ATM System:

In modern age we can re-design functionality for an ATM like,

Common functionality :

-Cash withdrawl

-Balance check

- Transaction Staements

etc.

Advance functionality :

-Instant cash lone(limited)

-Phone rechrage

-cheque submit

UseCase for ATM System:

-System setup usecase- for this usecase you can take object like ATMCreential- Here we got the credentials like ATM PIN from the ATM machine and from ATM card the machine will fetch the account number , then we can pass the account number and atm pin to internal system for processing.

-Balance check usecase -the object you can take UserAcoountDetails- Based on your ATM card number , The internal system will fetch UuserAccountDetails from database and stored in UserAccountDetails Object.After that we can show the balance detalis to user.

-Transcation usecase- The object you can consider like UserTranscationDetails

-Cash withdrawl usecase- The object you can take WithdrawlAmount, here you can recieve the withdrwa amount from ATM machine and you can pass this amount to your system for processing.

-Deposite usecase- The object you can take DepositeAmount - Here you can recieve the deposite amount fro ATM machine and you can pass this amount to your system fro processing.