Structure of client server systems, Database Management System

Assignment Help:

Structure of Client Server Systems:In client/server architecture, clients show users who require services while servers give services. Both client and server are a combination of hardware & software. Servers are divided logical objects that communicate with clients over a network to do tasks together. A client makes a request for a service & receives a reply to that request. A server gets & processes a request, and sends back the needed response. The client/server systems may have two different types of architecture -

2-Tier and 3-Tier Client/Server Architectures

Each client/server application contains three functional units:

  • Presentation logic which gives the human/machine interaction (the user interface). The presentation layer operates input from the mouse, keyboard or other input devices and gives output in the form of screen displays. For instance, the ATM machine of a bank gives such interfaces.
  • Business logic is the functionality given to an application program. For instance, software that enables a customer to ask for to operate his/her balance on his/her account with the bank is business logic. It contains rules for withdrawal, for minimum balance etc. It is often known as business logic because it includes the business rules that drive a given enterprise.
  • The bottom layer gives the generalized services required by the other layers including file services, communications services, print services and database services. One example of such a service may be to give the records of customer accounts.

These functional units can reside on either the client or on one or more servers in the application:

                         599_Structure of Client Server Systems.png

 

                                                                     Figure: A client-server system

 


Related Discussions:- Structure of client server systems

Prepare heart failure registry database, Prepare Heart Failure Registry dat...

Prepare Heart Failure Registry database How are you today? Please I would like you to design a Heart Failure registry where doctors will log in to enter information about their

Illustrate the view of software architecture, Illustrate the view of softwa...

Illustrate the view of software architecture A model is a semantically closed abstraction of system composes of elements. It can be visualized using any of the following five v

What is management system, What is Management System? A management syst...

What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet

Describe in brief about the sequence diagrams, Describe in brief about the ...

Describe in brief about the Sequence Diagrams Sequence diagrams are interaction diagrams which emphasize time ordering of messages. In UML, it is shown as a table which shows

Data definition language, Data Definition Language It organises the dat...

Data Definition Language It organises the data in the form of columns and rows. But what does the data field column of table accumulate? How do you describe it using SQL? Th

Difference among a database schema and a database state, What is the differ...

What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a

advantages of database over file system, Q.   Why would you choose a datab...

Q.   Why would you choose a database system instead of simply storing data in operating system file? Define  at a base concept in details. Sol. Advantages of Database over Fil

Explain how the binary tree, QUESTION (a) Give two advantages of using ...

QUESTION (a) Give two advantages of using Linked List as compared to arrays. (b) (i) You are working as programmer at the Orange Mauritius branch. You have been asked to cre

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