摘要:Purpose: The paper examines five web based open access repositories for the purpose of identifying their strength and limitations, using pre-defined standard parameters. Design/Methodology/Approach: The study used Directory of Open Access Repositories (Open DOAR) as a base for the collection of data. Findings: The analysis found that the repositories are credible and are equipped with rich sets of functionalities to facilitate depositing, accessing and retrieving scholarly materials. Originality/Value: The paper highlights the credibility related issues of institutional repositories in the present web based information retrieval environment. Keywords: Institutional Repositories (IR); Evaluation; Open Access Repositories. Paper Type: Research