deliver best virtual information system implementation design. 

## 4. The Differentiation

After design the application infrastructure for virtual information system then we need to know what people have known about virtual information system. After searching on internet then we have some information such as: 
1) In 1997 Song L and Nagi R wrote about virtual information system but what they had researched about the requirement, design and implementation issues of agile manufacturing information system by present AMIS (Agile Manufacturing Information System framework). 

AMIS as an open system architecture was used to merge some manufacturing information which have each expertise, partners from different companies, who collaborate with each other to design and manufacture high quality and customized products.[12][13]. 

2) In 2000 Padma, V.U. and Harish B wrote about case study on a virtual information system for a group of institutions in Manipal, India. The VIS 
was defined as "A network of different library systems that come together to exploit or transit the information available in their premise or they can also be defined as Information System Partners.[14] One of their future strategy for virtual information system is to develop multimedia sources. 

3) Virtual Information System Store at http://stores.ebay.com/Virtual-InformationSystems . Ebay provide the Internet platforms of choice for global commerce, payments and communications. With Virtual Information System Store, Ebay helps their customer to selling by online business and helps their buyer according to specific needs and interest. People around the world differences in language, culture and economic status explore, learn, shop, share and talk with each other. 

4) Infomaster project which has developed at Computer Science Department, Standford University. Infomaster is a virtual information system that allows users to access a variety of heterogeneous, distributed information from multiple perspectives. Infomaster accesses information stored in databases or knowledge bases using Agent Communication Language 
(ACL). Infomaster is an operational system that currently presents information on rental housing in the San Francisco Bay Area and on people at Stanford [6]. 

5) In 2006 Amberg, M. & Fischer S wrote about web-based Aptitude test for student Guidance where they proposed virtual advice as information system for freshmen guidance with standardized web-based aptitude tests by adding virtual environment like 360 degree images, movie sequences and photo.[16]. 

6) Fairer-Wessels with his idea about the development of leisuredigest.com, a South African tourism website wrote that A virtual information system is a specific type of information system that is based on the WWW. 

According to his written it is virtual in the sense that it is not book or paper-based although information on the Web can be downloaded onto paper or hard format. The advantage of virtual information is that it can be updated on a daily basis without the cost involved in updating traditional paper-based publications, as well as the advantage of timeliness, especially in the case of tourist information that is often obsolete before it is printed.[17]
7) In 1995 Lau, J. wrote about virtual libraries for less developed country where virtual information system as 3D information system or virtual reality information system to come up with alive pictures, sound and smell of real life. [15]. He wrote that virtual information system offer libraries the possibility of providing tools with full multimedia interacting power, besides the traditional printed and electronic services. 

Padma with his concept for Manipal institutions and Song with his concept about virtual information system for agile manufacturing are basic foundation to deliver the information system as virtual with networking without web support. 

Web and multimedia is just as future suggestion for their virtual information system. 

Others like ebay, infomaster project, webbased Aptitude Test, Fairer-Wessels' leisuredigest.com and Lau's virtual libraries start to use web application for their virtual information system. They proposed using web technology with multimedia support such as sounds, pictures, animation and movies. 

 Virtual application with virtual working and virtual human in my writing as a new approach for the new era for the meaning of virtual information system, where the information system will be declared by virtually as the mankind do their natural instinct to play, live happy in this world.

Mankind will do their business activity as real as they are live, as real as when they play and become clever and their knowledge will be live after when they were dead. There will be an virtual human 