Affordance
After reading both Bower(2008) and Morgan, Butler and Power, M. (2007) both of which are text devoted more to evaluating or showing examples of evaluating affordances of various technologies I have come to the conclusion that in an ICT context affordance simply means capabilities or services offered by a piece of technology.
Hadfield and Jopling (2014) describe the history of the term affordance, how it passed first from a term describing the natural world through to HCI and finally to ICT (along with many other fields).
Hadfield, M., & Jopling, M. (2014). The development of an implementation model for ICT in education: an example of the interaction of affordances and multimodality. Innovations in Education and Teaching International, 51(6), 607–617. http://doi.org/10.1080/14703297.2014.924747
Bower, M. (2008). Affordance analysis—matching learning tasks with learning technologies. Educational Media International, 45, 1, 3–15.
Morgan, M., Butler, M. & Power, M. (2007). Evaluating ICT in education: A comparison of the affordances of the iPod, DS and Wii. In ICT: Providing choices for learners and learning. Proceedings ascilite Singapore 2007. http://www.ascilite.org.au/conferences/singapore07/procs/morgan.pdf