Mainframe-Centric Model

CLIENT/SERVER SYSTEMS DEVELOPMENT – HARDWARE

-          Hardware/Network Acquisition

-          PC-Level Processing Units

-          Macintosh

-          Notebooks

-          Pen

-          Unix Workstation

-          X-Terminals

-          Server Hardware

-          Data Storage

-          Magnetic Disk

-          Mirrored Disk

-          RAID-Disk Array

-          Tape

-          Optical disks

-          CD-ROM

-          WORM

-          Erasable Optical

-          Network Interface Cards (NICs)

-          Token Ring

-          Ethernet

-          FDDI

-          CDDI

-          Power Protection Devices

-          Uninterruptible Power Supply (UPS)

-          Surge protectors

UNIT – V

CLIENT/SERVER SYSTEMS DEVELOPMENT – SERVICE AND SUPPORT

-          System Administration

CLIENT / SERVER TECHNOLOGY

UNIT-I

CLIENT / SERVER COMPUTING

-          What is client?

-          What is server?

-          What is client/server?

-          A modern client/server architecture

-          Simplified application model

-          Degree of technology visibility to developer

Mainframe-Centric Client/Server Computing

-          EDI

-          ICR

Downsizing and Client/Server Computing

-          Downsizing: Reduction of the size of Client/Server

-          Upsizing: Increase of the size of Client/Server

ADVANTAGES OF CLIENT/SERVER COMPUTING

-          Enhanced Data Sharing

-          Integrated services

-          Sharing Resources among Diverse platforms

-          Data Interchangeability and Interoperability

-          Masked physical data access

-          Location independence of data processing

-          Centralized Management

Technology Revolution

-          Future Technologies

-          Computing Power Compared

-          Input/Output Compared

-          Main Storage

-          Software Trends

·         Graphical Screen Designs

·         Relation Databases

Connectivity

-          Step 1: Workstations Emulate Corporate Systems

-          Step 2: Adding Servers for database and communications

-          Step 3: Full-fledged Client/Server Applications

Ways to improve Performance

-          Offload work to server

-          Reduce total execution time

-          Use a multitasking client

How to Reduce Network Traffic

-          Minimize Network Requests

-          Ease Strain on Network Resources

-          How to Reduce Costs

UNIT-II

COMPONENTS OF CLIENT/SERVER APPLIVATIONS – THE CLIENT

The Role of the Client

-          Requester

-          Facilities such as Dynamic Data Exchange (DDE), Object Level Embedding (OLE), Common Object Request Broker Architecture (CORBA)

-          Common Open Software Environment (COSE)

Client Services

Request for Service

-          IPC (Interprocess Communication)

-          NOS Redirection

-          How does redirection work?

-          Remote Procedure Call (RPC)

-          Fax/Print Services

-          Window Services

-          Remote Boot Services

-          Other Remote Services

-          Shared Memory

-          Queues

-          Dynamic Data Exchange

-          Remote Procedure Calls

-          Object Linking and Embedding

Wide Area Network Technologies

-          Frame Relay

-          Switched Multimegabit Data Services (SMDS)

-          ATM in the Wide Area Network

-          Integrated Services Digital Network

·         B-Channel

·         D-Channel Signaling

·         ISDN Applications

UNIT – IV

CLIENT/SERVER SYSTEMS DEVELOPMENT – SOFTWARE

-          Factors Driving Demand for Application Software Development

-          Rising Technology Staff Costs

-          Need to Improve Technology Professional’s Productivity

-          Need for Platform Migration and Reengineering of Existing Systems

-          Need for a Common Interface Across Platforms

-          Increase in Applications Development by Users

-          Client/Server Systems Development Methodology

·         Systems Integration Life Cycle

·         SILC phases and major activities

-          Asynchronous Transfer Mode (ATM)

·         Constant Bit Rate (CBR)

·         Variable Bit Rate (VBR)

·         Bursty  traffic

-          Hubs

·         Workgroup Hubs

·         Wiring Closet Hubs

·         Network Center Hubs

-          Internetworking Devices: Bridges and Routers

·         Networking Devices: Repeaters and Bridges

·         Internetwork Devices: Routers and Gateways

-          Transmission Control Protocol/Internet Protocol

·         TCP/IP’s Architecture

·         Internet Protocol

·         Transport Protocols

·         Telnet

·         File Transfer protocol (FTP)

-          Simple Network Management Protocol (SNMP)

-          Network File System (NFS)

-          Simple Mail Transfer Protocol (SMTP)

·         TCP/IP and  Internetworks

·         Routing

·         Connection Vs Connectionless

·         Administrative Load Sensitivity

·         Networks of Network

InterProcess Communication

-          IPC Services

-          Peer-to-Peer Protocols

-          NetBIOS

-          Application Program-to-Program Communication

-          Named Pipes

-          Anonymous Pipes

-          Semaphores

-          Utility Services

-          Message Services

-          Network Services

-          Application Services

-          Database Services

-          Network Management Services – Alerts

-          Dynamic Data Exchange (DDE)

-          Object Linking and Embedding (OLE)

-          Common Object Request Broker Architecture (COBRA)

COMPONENTS OF CLIENT/SERVER APPLIVATIONS – THE SERVER

The Role of the Server

-          Respond for Requests

-          Application Servers

-          File Servers

-          Database Servers

-          Print Servers

-          Fax Servers

-          Communication Servers

-          Security Servers

Server Functionality in Detail

-          Request Processing

Requests from Client           NOS Services               Server

-          File Services

-          Fax/Print/Image Services

-          Database Services

·         Flat Files: Sorting Physical Records

·         Hieratical Databases: Adjacent Storage of Related Record Types

·         Relational Databases: Extracted Indexes and SQL

·         DBMS Features

·         Object-Oriented – A Bright Future

-          Communications Services

-          Security Services

The Network Operating System

-          Novell Netware

·         Netware works both SOS and NOS

·         Netware Architecture

·         Netware Open Services

-          LAN Manager

-          IBM LAN Server

-          Banyan VINES

-          PC Network File Services (NFS)

What are the Available Platforms?

-          Workstations in LAN Configuration

-          LAN-to-LAN/WAN Configuration

-          LAN-to-Host Configuration

-          Enterprise-Wide

·         OLTP (Online Transaction Processing) on a LAN

·         OLTP with UNIX

The Server Operating System

-          Netware

-          OS/2

-          Windows NT

-          MVS

-          OPENVMS

-          UNIX

·         UNIX Architecture

·         Open Software Foundation (OSF)

·         Important Technologies defined by OSF

·         COSE (Common Open Software Environment)

-          Distributed Computing Environment (DCE)

·         DCE Architecture

·         Elements of DCE

·         RPC, Naming, Security, Threads, Time Service, Distributed File Services, PC Integration, Management and Communications

UNIT – III

COMPONENTS OF CLIENT/SERVER APPLIVATIONS – CONNECTIVITY

Open Systems Interconnect

-          The Seven Layer of OSI model

-          Physical Layer

-          Data Link Layer

-          Network Layer

-          Transport Layer

-          Session Layer

-          Presentation Layer

-          Application Layer

Communications Interface Technology

-          LAN Cabling

·         Twister Pair Cable

·         Co-Axial Cable

·         Fiber Optical Cable

-          Ethernet IEEE 802.3

·         NICs (Network Interface Cards)

-          Token Ring IEEE 802.3

-          Fiber Distributed Data Interface (FDDI)

-          Copper Distributed Data Interface (CDDI)

-          Ethernet Vs Token Ring Vs FDDI

-          Availability

-          Reliability

-          Serviceability

-          Software Distribution

-          Performance

-          Network Management

-          Help Desk

-          Remote Systems Management

-          Security

-          LAN and Network Management Issues

-          Licensing

The Future of Client/Server Computing

-          What’s in Store for Networking – Everyone’s a Peer

-          What’s in Store for software Development – Everyone’s an Object

-          Enabling Technologies

·         Expert Systems

§Knowledge Based System (KBS)

§Architecture of Expert Systems

·         Geographic Information Systems

·         Geographic Positioning Systems

·         Point-of-Service (POS)

·         Imaging

§Optical Character Recognition (OCR)

§Intelligent Character Recognition (ICR)

·         Electronic Document Management – Multimedia

·         Full-Text Retrieval

-          Transformational Systems – The Challenge of the 1990’s

·         Emergency Public Safety

·         Electronic data Interchange (EDI)

·         Financial Analysis