Blackwell, A.F. and Green, T.R.G. (1999). Investment of Attention as an Analytic Approach to Cognitive Dimensions. In T. Green, R. Abdullah & P. Brna (Eds.) Collected Papers of the 1 lth Annual Workshop of the Psychology of Programming Interest Group (PPIG-11), pp. 24-35.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....endpoint from a range, allowing for relationships such as , and so on. Further information on the relationships supported, the assertions relative power, and the graphical syntax can be found in [4] But, will users ever choose to enter assertions Blackwell s model of attention investment [2] is one model of user problem solving behavior that suggests users will not want to enter assertions as we have just described them. The model considers the costs, benefits, and risks users weigh in deciding how to complete a task. For example, if the ultimate goal is to forecast a budget using a ....

Blackwell, A. and Green, T. R. G. Investment of attention as an analytic approach to cognitive dimensions. In T. Green, R. Abdullah & P. Brna (Eds.) Collected Papers Wkshp. Psychology of Programming Interest Group, 1999, 24-35. www.cl.cam.ac.uk/~afb21/ publications/PPIG99.htm

....easily mastered [18] Modugno et al. [37] have verified that little experience is needed to correctly apply the technique. As a result, the technique has now been in use for several years by members of the HCI community, and as such has been used and commented on by several others (e.g. Blackwell [3], Modugno et al. [37] Yazdani [67] and has even been suggested as a teaching aid [66] A useful tutorial illustrating how this analysis technique can be applied can be found in [17] In order to provide a feel for cognitive dimensions analysis, a very simple example is outlined below. The ....

A. F. Blackwell and T. R. G. Green. Investment of attention as an analytic approach to cognitive dimensions. In T. Green, R. Abdullah, and P. Brna, editors, Collected Papers of the 11 Annual Workshop of the Psychology of Programming Interest Group (PPIG-11), 1999.

....has been learnt, how much of the rest can be inferred [9] In addition to the consistency CD, other CDs that impacted our design include visibility, progressive evaluation, abstraction gradient, and premature commitment, as will be seen. Another influence on our design was Attention Economics [2]. Attention Economics is an analytic model of user problem solving behavior that allows a designer to consider the costs, benefits, and risks users weigh in deciding how to complete a task. For example, consider a programmable phone. If the ultimate goal is to make a phone call, then programming ....

Blackwell, A. and Green, T. R. G. Investment of attention as an analytic approach to cognitive dimensions. In T. Green, R. Abdullah & P. Brna (Eds.) Collected Papers Wkshp. Psychology of Programming Interest Group, 1999, 24-35.

.... either in space, in time or in both (if two events occur in the same place at the same time, they are the same event) In previous publications, we have described these fundamental non direct manipulations of programming as abstraction over time and abstraction over a class of situations [2,3]. 3.2. Use of notation The second universal characteristic of programming situations is that the program is represented using some notation. This is also a universal characteristic of abstract thought. According to one perspective in the philosophy of mind, concrete action is that in which there ....

....micro (unconscious) and macro (conscious) decisions a user might make in attempting to minimize attention costs over longer timeframes. To summarize these descriptive factors at a qualitative level: Many programming activities promise, through automation, to save attentional effort in the future [3]. The irony of this abstract approach is that the activity of programming may involve more effort than the manual operation being automated [14] Most decisions to start programming activities are based on an implicit cost benefit analysis [1] The variables involved in this cost benefit analysis ....

Blackwell, A.F. and Green, T.R.G. (1999). Investment of Attention as an Analytic Approach to Cognitive Dimensions. In T. Green, R. Abdullah & P. Brna (Eds.) Collected Papers of the 1 lth Annual Workshop of the Psychology of Programming Interest Group (PPIG-11), pp. 24-35.

....tasks, there will not be a single activity type, but rather a spread of different activities that varies for different users (analysts, testers, coders etc. We construct this profile in terms of estimated percentage of time allocated to the different activities presented earlier in (Blackwell Green 1999). When using the system, what proportion of your time (as a rough percentage) do you spend: Searching for information within the notation [ Translating substantial amounts of information from some other source into the system [ Adding small bits of information to a description ....

Blackwell, A.F. & Green, T.R.G. (1999). Investment of attention as an analytic approach to Cognitive Dimensions. In T.R. G. Green, R. Abdullah & P. Brna (Eds.) Collected Papers of the 11th Annual Workshop of the Psychology of Programming Interest Group (PPIG-11), pp. 24-35.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC