"poor functionality" is a correct and usable part of a sentence in written English.
You can use it when referring to something that does not operate properly or efficiently. For example: "The smartphone had poor functionality, so I decided to return it to the store."
"Private banks have been trailing behind retail banks with this type of offering for consumers, and even when they do offer an app, those have pretty poor functionality," said Steffen Binder, managing director of MyPrivateBanking, an independent research firm based in Switzerland.
Hence, it is difficult to pinpoint exactly for which cognitive operations a low scoring subject may have poor functionality.
The most common responses I hear from hospital administrators are poor functionality of the IT systems, inflexible staff and insufficient investment in training.
It is argued that the multi-cellular design approach, currently prevalent in the British housing market, results in inappropriate room dimensions and poor functionality.
The evaluation results show that the traditionally developed PSS was immediately rejected by planning practitioners due to poor functionality and usability, whereas the PSS developed with a socio-technical approach was much more acceptable.
However, the severe conditions (HCl 6 N, 118 °C, 18 h, or pH 12.5, 95 °C, 20 min) used in chemical hydrolysis can have negative consequences such as racemization, bitter taste, reduced nutritional quality, and poor functionality, resulting in products of lower value, i.e., fertilizer (Chobert et al. 1996).
Women generally reported poorer functionality than men (11).
As with the Health Status, women were more likely to report poorer functionality (WHODASi) than men.
People aged 80 and over had a threefold increase in risk of reporting poorer functionality.
As a sensitivity analysis, the non-measured functional status for those who died within 3 and 6 months was replaced by a value of 5 (poorest functionality).
The ICHM-ICH group had a higher mean number of diagnoses, worse functional status, and a higher proportion received primary health care prior to hospitalization indicating that this group was sicker and had poorer functionality, i.e., was more frail.
