The information provided in the article is somewhat different to the current knowledge on the matter and is in context with the acnowledgements of the period. Also a lot on influence on the matter is taken from different sociological aspects of that time. The interaction styles and methods have come a long way since then.
The whole process of interaction has been written down according to future possibilities of interactivity that in many ways have come true. Also the focus on interactivity as a process in different fields now is indeed different than the article suggests. But as far as computer sciences are concerned, interactivity at that time was farely uncommon. Nowadays the interactivity between man and machine has changed to a status that allows us to use the medium in a lot of different ways that were not aknwledged then.
The interaction and interactvity in information technology allows us to use all the four communication patterns put down by Bordewijk and Kaam and more. The interaction today uses these different patterns at a time and provides options to vary between using mutiple ways of using the medium.
At the end of the article Jens F. Jensen sums up interactivity and divides it into four subcategories(can be seen as three also): transitional, consultational, conversational and registrational interactivity. For that period in time it might have been correct but today it provides a more compact and diverse solution. Firstly the the transitional and consultational interactivity have blended together indeed. So the client has the ability to use whatever service and interact with it and also has a return channel at the same time. Secondly, almost all services simultaneously provide registrational and conversational interactivity.
To sum up, the actual meaning of interactivity has changed alot concerning computer sciences and the main reason is the rapid development of technology. The aspects and views provided are correct but they have altered and changed over time quite a lot.