I would like to add my own experience with using OER's. I have found that they are not always easy to access due to the file formats that are not always compatible with your computer's software or version. In addition, they are not always culturally relevant to your context and you have to know how to edit these different files or have the software that will enable you to do so in order to make the content more culturally relevant. In the long run, you end up spending more time trying to modify than actually use these ready-made resources. I also find that the content is not always current and you also have to spend time updating them. I am all for OER's but there are some limitations that don't always allow for immediate adoption. The following help to elaborate more on the issue of accommodating for diverse international perspectives in online resources:

https://www.researchgate.net/publication/263045894_Generation_I_International_and_invisible_in_a_workforce_education_and_development_graduate_programme_content_Caribbean_Teaching_Scholar_Vol_4_No_1_April_2014?ev=prf_pub

Best regards,

Debra

Data Generation I: International and invisible in a workforce edu...

Please find attached some related literature.

Regards

http://www.hewlett.org/sites/default/files/Open_Educational_Resources_December_2015.pdf

Article Designing an online learning environment on Open Educational...

Hi Raouf and colleagues,

I think we can measure the rate or score of use based on several criteria (The criteria define the characteristics of well designed and pedagogically adequate OER) such as:

The online material is easy to find

The online material is usable in technically differing environments

How much money was saved by adopting OER? Does the money saved account for time spent identifying,

modifying and integrating OER?

The user management of the online material is reliable

The learning Objective is clear