[29] Finally, the question of whether a library should go with open source software or commercial products is always a point of contention.
For example, Harvard University is currently conducting a library portal project, which will begin implementation during the summer of 2012.
The various general areas that the committee has looked at include: content, user experience, features and capabilities, infrastructure and security, and search and discovery.
[32] Yang and Hofmann suggest that vendors see money in building either separate discovery tools or Next-Generation OPACs to be purchased as an add-on feature.
]"[33] This contrasts Bair, Boston, and Garrison, who differentiate between next-generation catalogues and web-scale discovery services.