Table 4.

Table 4 The Results of the Survey For the Three Secondary Components

	Criteria	Question Number	Results of Questionnaire Quartiles
			I ∗	II #	III #	IV #
Process Management
Coordination	12 There is a team responsible for the management of the maintenance process.	1.1	100%	89%	100%	100%
	13 The maintenance team is easily accessible.	1.2	30	75	56	89
	14 The response time of the maintenance team for proposals and questions is short. (Mean days (± SD))	1.3	26.8 (52.1)	16.3 (30.2)	6.7 (5.8)	10.0 (11.5)
Persons involved	15 Different disciplines participate in the maintenance team.	1.1
	Users/domain expert,		50	40	50	80
	Terminology expert,		50	56	52	77.8
	Software of Engineers,		40	33	65	67
	Coordinators.		30	22	22	56
Security	16 Only qualified people are able to make changes in the TS.	1.4	60	67	89	100
	17 Access to the TS is secured, using:	1.5	70	78	78	89
	Identification,		67	50	75	78
	Authentication,		67	67	75	78
	Authorization.		50	67	50	67
Change specifications
Change policy	18 The codes that are assigned to concepts are context free:	2.1	50	67	77	67
	Random,		50	67	66	67
	Hierarchy related.		50	33	22	33
	19 Concepts that are no longer in use, are not removed from the TS. Instead, these concepts are kept in the TS and are marked obsolete.	2.3	30	66	66	78
	20 In case of removal of a concept (which is not in accordance with the criteria), the code assigned to that concept is not reused.	2.4	30	30	20	50
	21 Within the TS there are no limitations regarding the number of concepts, hierarchic levels and terms that can be added.	2.5	60	56	56	67
Change Operation	22 There is a ‘change model’ that specifies all types of changes (e.g. delete, add, adjust, etc.) that can occur in the TS in concordance with the change policies.	2.2	50	22	33	33
Editing tool
Functions	23 The maintenance team uses an editing tool for the maintenance process.	4.1	60	100	77	89
	24 The editing tool is secured with login name and password.	4.3	60	58	83	89
	25 The editing tool contains a module for collecting the proposals.	4.2	80	71	50	67
	26 The editing tool contains a module to enable the consensus process.	4.2	60	29	67	22
	27 The editing tool supports the input of changes into the TS.	4.2	75	86	83	78
	28 The editing tool supports automatic validation controls.	4.3	20	71	33	56
	29 The editing tool generates reports for documentation.	4.2	40	86	16	56
	30 The editing tool supports managing different versions of TS.	4.2	60	57	33	67
	31 The editing tool supports distribution of new versions.	4.2	80	71	67	67

^∗ Consists of 10 TSs

^# Consists of 9 TSs

TS = terminological system.

For each criterion, the related question number in the questionnaire is provided. In the results part, the numbers provide the percentages of the participating organizations within each quartile satisfying the criterion.