Session Chair: Thanaruk Theeramunkong Session Theme: Creative Research Environments & their Performance Session Number: 1 Paper No: 18 Session and Talk No: TS1-2 Type: Full Co-authors: Xiuxia Cui, Yukari Nagai and Xiaoxiao Liu Title: A Study on the Elderly House with Supportive Service from the Viewpoint of Creativity

1. A Study on the Elderly House with
Supportive Service from the Viewpoint
of Creativity
• Presenter: Xiuxia Cui
• Co-authors: Yukari Nagai ・Xiaoxiao Liu
• School: School of Knowledge Science Japan Advanced Institute
of Science and Technology Nomi, Japan
KICSS 2020.11.25
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2. Outline of today’s presentation
Ⅰ Introduction P.3-5
Ⅱ Statistical data from KHCoder and analysis P6-13
Ⅲ Survey P.14-15
Ⅳ Discussion P.16-17
Ⅴ Future Tasks P.18-19
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3. Ⅰ-1 Background
In October 2011, Japan sets up the Elderly House with Supportive Service (EHSS) registration system, helping
elderly to live continuously where they are accustomed to until they need supportive services.
The “Registration criteria” for EHSS were
the following:
【1】House : The house should be barrier-free.
The area of ​​each dwelling unit should be 25㎡
or more, and must be equipped with a kitchen,
toilet, storage facility, washroom, and bathroom.
【2】Service: The house should provide situation
confirmation service and life consultation services [1].
Since then, “EHSS has spread to a certain extent
in a short period”[2]. Fig.1 shows the registration
status of EHSS by Oct.2020 [1].
[1] https://www.mlit.go.jp/jutakukentiku/house/jutakukentiku_house
[2] Interim report of a study group on the ideal way of maintenance in EHSS” Fig.1 Registration Status of
EHSS(2020.10)
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4. Ⅰ-2 The purpose of this paper
The purpose of my research is focusing on the actual living conditions of the
elderly in EHSS, finding the problem, and try to provide an ideal living space for the
elderly, where psychological satisfaction and excitement of the elderly can be
provided. To this end, the literature review on the design of the EHSS is carried out
first.
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5. Ⅰ-3 Method of the research
We searched the original papers from Oct.2011 to Jun.2020，with the terms “Elderly House with
Supportive Services”, “living”, “space ”in Google Scholar. And then based on the titles and
abstracts of the papers, we extracted 14 papers that dealt with the elderly`s actual life and living space
design of the EHSS.
For these papers, first, we used KHCoder (ver.3.0.0.0) to analyze all data. Next we discussed the
creativity of the EHSS’s design and the EHSS’s functions . Using KHCoder, we analyzed the data as
following:
(a) Frequency List of Words (words used frequently)；
(b) Co-Occurrence Network (words with similar appearances) ;
(c) KWIC Concordance (related word search)；
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6. Ⅱ-1
Which words are
highly concentrated?
Table1 Extracted words
Ranking extracted words appear times Ranking extracted words appear times
1 住宅house 488 14 食堂dining hall 156
2 入居move-in 409 15 多いmany 145
3 高齢elderly 329 16 滞在stay 139
4 生活life 300 17 共用public 134
5 介護nursing care 260 18 事例case 132
6 サービスcare service 256 19 食事meal 121
7 空間space 251 20 時間time 120
8 利用use 219 21 環境environment 118
9 サ高住EHSS 217 22 対応correspondence 118
10 施設facility 201 23 研究research 116
11 住戸dwelling unit 199 24 設置set up 115
12 調査survey 188 25 状況situation 113
13 居住live 173 26 事業business 101
In Table1 Extracted words, a frequency list of words that
were concentrated in the past prior literature is showed.
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7. Fig.2 Co-occurrence network of words
Ⅱ-2 Co-occurrence
network of words
It is said that circles
connected by lines are close to
each other and appear in
common and have a co-
occurrence relationship. The
size of the circle indicates the
number of occurrences. Circles
of the same color indicate that
the extracted words are close to
each other.
“House” is the biggest circle
connected with “elderly” in the
network. After that, “House”
could be connected with
“service” and “life” through the
“elderly”.
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8. Ⅱ-2
Table 2 Names of groups
extracted by the co-occurrence
networkGroup① research on the elderly’s stay
in the common space
Group② research on the sustainability
of the EHSS
Group③ research on the elderly’s life
in EHSS
Group④ research on the improvement
of the EHSS’s environment
Group⑤ research on the support from
service businesses and service
association
Group⑥ Consideration to be done
Group⑦ Related items
Group⑧ Survey target
Fig.3 Co-occurrence network of words in groups
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9. Ⅱ-3
The words
with high
centrality
in the co-
occurrence
net work
Fig.4 Co-occurrence network of
words(centrality)P.9

10. Ⅱ-4 Group ①
research on the elderly’s
stay in the common
space
This group includs three
connected central words, which
are “ stay滞在”, “ public共用”,
and “ use利用” .
At the same time, they are
related with connected with
“ dining hall食堂” and “ staffス
タッフ”.
Fig.5 Co-occurrence network
of words in Group①
Fig.6 Word’s centrality in Group ①
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11. Ⅱ-5 KWIC concordance
of
"stay滞在"
We investigated the KWIC
(keyword in context )
concordance of "stay滞在"
by setting 5 words on the left
and 5 words on the right
shown in Table3.
Tab.3 Collocation statistics for "stay滞在"
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12. Ⅱ-6 Group③:research on the elderly’s life in EHSS
Group③ included the central words "life生活", "management運営," and "location立地."
Fig.7 Co-occurrence network of words in Group③ Fig.8 Word’s centrality in Group ②
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13. Ⅱ-7 KWIC
concordance
of "life生活"
We investigated the
KWIC ( keyword in context )
concordance of "life
生活" by setting 5
words before and after,
expressed as shown in
Table4.
Tab.4 Collocation statistics for "life生活"
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14. Ⅲ．Survey
Ⅲ-1 Survey on EHSS
The EHSS is,
“(1) Barrier-free house based on a rental contract,
(2) A house where safety assurance and basic services, take life consultation as an example, is provided to
the residents,
(3) Meal services are provided in most houses,
(4) Nursing care and medical care can be delivered as home care services from business establishments
inside or outside the house”[4].
[4] I. Yukiko, Issues for proper maintenance of housing for the elderly with high-quality services, vol.47 No.4 p.119－124 Quarterly, Social
Security Research

15. Ⅲ-2 Literature review on the life in EHSS and
the design of EHSS
• From Oct.2011 to Jun.2020, the design of EHSS has been investigated. Through the analysis with
KHCoder, we statistically analyzed the data. We got the conclusion as following:
The keywords of the literature on EHSS are "house," “move-in," "elderly," "life," "nursing care,"
"service", and“space".
The whole co-occurrence net is divided into main 5 topics:
•Group ①focus on the usage status of the elderly in common spaces;
•Group ② focus on the providing of nursing care services;
•Group ③ focus on the living condition of the elderly in EHSS, and the management, region, and
location of EHSS.
•Group ④ focus on the improvement of the EHSS’s environment;
•Group ⑤ focus on“nursing care”, home-visit care and the support from the service associations．

16. Ⅳ-1 Discussion on the EHSS’s creativity
Ⅳ．Discussion
• Taura and Nagai categorized three types of designs [8]: pattern expression type,
problem-solving type, and ideal pursuit type. And creativity is deeply related to the
so-called 'analytical ability’ in problem-solving design.
• Accordingly, EHSS could be thought as the type of problem-solving. EHSS
analyzed and solved the elderly’s housing problem, so this ‘analyzing ability' is
regarded as the creativity of the design of EHSS. As prior literatures proposed a lot
of related problems in the design of the EHSS, this ‘analyzing ability' is also
referred to as the creativity in these papers.
[8] T. Taura, Y. Nagai, Design creativity, and concept generation 17(1), Cognitive Studies, 2020, pp66-82.
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17. Ⅳ-2 Discussion on the functions of the EHSS
• Noguchi and Nagai [5] said that “It is considered that there are several levels of functions in artifacts as
follows. (1) Physical function (2) Physiological function (3) Psychological function.”
• EHSS is an artifact, and EHSS has the following three levels of function:
(1) EHSS`s Physical function: providing a house with safety and security
(2) EHSS`s Physiological function: providing a house with peace of mind
(3) EHSS`s Psychological function: Providing a house with psychological satisfaction
• Through literature review with KHCoder, EHSS provides a house with barrier-free design to finish its
Physical function, and it provides supportive service to finish its Physiological function. But we can’t find the
research topic about the elderly’s Psychological satisfaction.
[5] H. Noguchi, Y. Nagai, On the Relation between Concept of Function and Expression of Meaning in Design Thinking
Process Design Symposium 2004 Lecture Collection 2004.7.8-9,Tokyo

18. Ⅴ．Future Tasks
• Further research is going to focus on the psychological function of EHSS and to ensure the satisfaction of
elderly residents.
• A good design of EHSS needs to meet four criteria:
(1) it is safe and convenient for the elderly`s daily life,
(2) care services can be provided conveniently,
(3) the elderly would move their body and do physical excise to promote their health,
(4) the elderly could have better communication with others, so that they could have mental joy and
satisfaction.
Through the literature review, (1) and (2) have almost finished successfully. However, we still need to pay
more attention to (3) and (4).

19. Ⅴ．Future Tasks
•Why should we pay more attention to (3) and (4)?
• On one hand, for elderly moving their body and doing exercise could prevent
illnesses. They could live independently without other's help and be more confident,
in order to improve the sense of happiness in life.
•On the other hand, better communication among elderly residents and
professional staff could make elderly get mental support from others, which ensures
elderly residents’ satisfaction.
•In one word, the design of EHSS may pay more attention to improving the health
and better communication of the elderly. Specifically, more attention should be paid
to the public space in EHSS and the activities of the elderly in order to help the
elderly to achieve emotional satisfaction and happiness.

20. Thanks for your attention!
Q & A