Each system implemented will present certain advantages and disadvantages. For institutional deposits, certain advantages can be highlighted. The first advantages that can be recognized are management. What is meant by management is that the institutional repository has assumed responsibility for preserving and sharing the digital document with the owner when the responsibility for the care and preservation of a digital document lies with the author of the document. The author may store the conference paper, for example, on a computer's hard drive where it is prone to corruption or virus attack. Sometimes, without paying much attention and effort, some conference documents may become inaccessible due to obsolescence in terms of formats and storage media or the information may be lost due to poor condition of the digital file himself. By having an institutional repository, all the burden and responsibility for resource management has been transferred from the individual level to the institutional level. The entire resource task has been simplified by the institutional repository. When the institutional repository is established, the institution faces an ongoing financial burden for staff, equipment, and preservation. However, most institutions discover an overall problem. net savings by centralizing functions that currently occur in a decentralized manner throughout the institution. What we can say about institutional repositories is that they represent an opportunity to make major savings by eliminating or centralizing certain activities. Any work that can be done using the same step can be done simultaneously without having to split it up. In institutional repositories, the user tends to favor paper documents and good documents in terms of storage capacity. In order to build an institutional repository, institutions must strengthen their services in order to maintain institutional support for the project. Currently, there are over 1,300 repositories available worldwide and the number continues to grow every year. There are many choices of repository systems that can be chosen as a platform for creating an institutional repository. Each repository offered slightly different features to entice the customer to use their system when creating a repository. There are certain criteria for comparing the repository systems available in the market today. Criteria to consider in a repository system are installation/administration, metadata, interoperability, content management, statistics, file formats and batch import, user interface, search and support system..