Application Independent Caching

As the Internet is growing more and more people are moving out of offices running LAN applications over the WAN. Most of the commonly used applications have not been designed taking slow transport into consideration. Even if the applications are slow transport aware, the client-server components may exchange lot of information to maintain consistency of run time information.

Even if the applications implement compression, the net amount of data transfer over the transport is reduced by some %.

There are some applications which have been designed with low bandwidth requirement; one of such application is SAP. SAP caches all the data locally and transfer only changed data over the transport.

The only way to have the application perform better over WAN is to reduce the amount of data transfer.

Caching is one method to reduce the data flowing over the network. A limited set of protocols have caching inbuilt, like HTTP.

In HTTP protocol, the client browser caches the data and on next request of same page it sends the request along with cached page information to server (Last Modification Time of the Page file). The HTTP server checks if the cached information at the client end has not been outdated. If outdated, new page is pushed to client otherwise “Page Not Modified” message is sent to client browser to use the cached object.

To implement similar Application Independent Caching mechanism for other applications, it will require significant changes in the base protocol of the application.

In this paper we will discuss a method to reduce the traffic for applications using standard protocols without modifying the protocol and the application.

We plan to implement a Application Independent Caching mechanism off the applications. We will implement a cached transport over which a application protocol will run. This is similar to implementing caching in TCP/IP layer.

 Application Independent Caching final year project Idea

We want to avoid sending protocol packets over the network which has earlier been sent on network. Rather than sending the complete packet again over the network, we will notify the other entity using a code about generation of same packet on this end.

This requires us to develop a new transport (over TCP) using client and server side agents.The current solution is for two peer machines talking to each other.

 An Application Independent Caching Client (AICC) agent will be installed on both the machines. AICC agent sits about TCP/IP layer of the OS and monitors all the outgoing and incoming packets. AICC has some significant space reserved for caching on hard-disk. All the packets going out and coming in to this machine are cached on this storage and each packet is assigned a universally unique code. Whenever an application transmits a packet, AICC gets the packets and searches for a similar packet in the cache. If a matching packet is found, AICC increments the cache hit counter for the entry in cache and sends the unique code for the cached entry over the wire. The other peer will receive the code rather than the original packet. Since the packet was already sent over the wire sometime back, the receiving machine already has the packet in its cache. It finds the packet using the unique code and passes on the corresponding cached data to the application.

Download  Application Independent Caching 

Learning Made Easy mini project

Learning Made Easy Project Description

The aim of the Learning Made Easy project is to provide training online by means of video tutorial and webinar’s for the employees of the company. By using this Learning Made Easy project this process which was manually can be automated . According to company policy all permanent employees can do all kinds of courses to improve their skills.

Learning Made Easy project Existing System

The Education and Training Department of the company administer training functions and handled by the head of that Department. All training course are scheduled based on a directions issued by the senior management and mode of training is based on diverse media of delivery available. This department library of CDs, videos and Books are maintained in the Training Library for this purpose.

Courses can also be provided by class-room based instructor by using different modes of available technology.. The Education and Training Department of company has acquired different number of educational CDs to provide computer based distance learning to employees.The company is also interested in prompting and developing self-learning based on distance education concept.

Earlier whole process was totally manually controlled. But by using Learning Made Easy project it needs intervention by the training staff at only frequent intervals. This project is proposed to automate this function together with the management of training function to employees.

 Drawbacks of existing system

• Employees can only attend the training classes as per the predefined given by Education and Training Department of the company.
• Every employees need to fill nomination to the training administrator if they desire to do attend a particular Course.
• Test paper evaluation is done manually it takes more time and there is a more chances of errors in evaluation.
• The employee cannot pursue a course of his/her choice at any time, as the training for that course may not be available at that instant.
• Employee need to wait for the training to conclude even is he/she is familiar with the course content and wants to write the test.
• Employee needs to contact the training staff for the study materials and test result details.
• Since the details of all the employees who understand training are maintained manually it is difficult to search for required details and generate reports if needed.

 Learning Made Easy project Proposed system

The study material for the courses will available online to employees in Compact Disks to provide sessions. Every Compact Disks will contains the study materials of selected course and a small summary of the topic. After attending the session employee must give a small test. All test question papers will be generated automatically and randomly for the user. By using this system every employees can access study material as well as company will be able to gain access to the system.

• Any employee can attend training by register himself with the system by selecting the desired course.
• Study material will be divided into levels and employee can go to next level after completing current level. Employee can even write a direct test if he knows the technology directly to a higher level.

Learning Made Easy Business Rules

• The employee has to register in order to pursue a course
• An employee can do only one course at a time
• The employee has to complete the course within an allotted time
• If the employee fails to complete the course within the allotted time, he/she has to contact the administrator for time extension
• No person other than an employee has access to the system
• The employee can change the allotted password at anytime
• The employee can access the study material of the next level only after qualifying in the test for the current level
• An employee can write a direct enter test to skip the lower levels and jump to the higher levels
• More than 3 attempts at a test-not permitted
  
• All the details of a course have to be available before it is posted in to the system
•  Once completed, the same course cannot be done twice.

Technical Environment

•  Microsoft .Net framework 2.0
•  ASP.Net 2.0, HTML.
•  Microsoft C#.Net language
•  Microsoft SQlServer 2000 or above.

<span style="font-family: georgia,palatino; font-size: medium;">Learning Made Easy  project Abstract</span>