But even with this categorisation of the problem area, defining what is precarious or not continues to be a complex issue.
Rules of thumb with two different purposes have been identified: to simplify categorisation of the problem to a disease and to make the consultation patient-centred [ 16, 17].
After imposing the disease/health problem categorisation, the model hypothesises that the disease burden can potentially be addressed by intervening through: i) primary prevention targeted at persons at risk, ii) early diagnosis (and treatment) of persons with undiagnosed diseases, iii) management of persons with established disease and iv) palliation for persons in the terminal phase.
These 'in-betweens', these Abdul-Mickeys (or his brother Abdul-Colin), these working-class white men, like Archie, who marry Jamaican women 20 years their junior, these non-believing 'Muslims' such as Millat, these 'white birds' who go weak at the knees for people such as Magid - such people present Britain with a problem of categorisation.
The fact that Obama and every other individual who is not 100% Caucasian is classified by default as "black" testifies to a structural problem with race categorisation that the performance aspect still doesn't really cover.
In our case the problem is the categorisation of the MATCH results describing the presence/absence of the different TFBS in the original URR sequences dataset.
Nevertheless, it is evident that dichotomisation of continuous parameters may pose a problem for diagnostic categorisation in some instances (Royston et al, 2006); a sharp PI cut-off of 25% implies that patients with 24%and2626% PI have a significantly different outcome, this potentially leads to different treatment decisions.
There are a number of emergent potentials in different problem areas - from categorisation (using folksonomies) to indexing (using hashtags), hyperlinking (using user-generated links) and recommendation systems (using social graphs), which aren't fully explored in many disciplines yet.
Structural members with shell intersections (as in the present case) present difficulties due to problems of linearisation and categorisation.
During the analysis of the final interviews (t3), no further problems arose regarding content categorisation.
