Dec 1 : 'If there is no polished furniture, you do not have to consider the reflected glare.'.
Dec 2 : 'You should be very carefule with reflected glare. Because you may use high-luminance lamps for direct lighting to the polished furniture. Change one of design, sucn as direct to indirect, direction of light, and the level of luminance.'.
Dec 3 : 'You should consider the reflected glare. Because you may use lamps for direct lighting to the polished furniture.'.
Dec 4 : 'If you are going to use indirect lighting only, then you do not have to consider the reflected glare.'.
Dec 5 : 'Lights may or may not cause reflected glare to the polish furniture, you should be careful with lighting direction of direct lights.'.
Dec 6 : 'Lights may or may not cause reflected glare to the polish furniture, although the light is low-luminaire. So, you should be careful with lighting direction of direct lights.'.
Dec 7 : 'This room has very good condition for the perceived brightness, regardless the number of lamps that you are going to use. Because this room has well contrast and bright color and you are going to use direct lighting with high-luminaire.'.
Dec 8 : 'This room have good condition for the perceived brightness, although the color of ceiling is middle tone. If you are concern about the perceived brightness, then increase the number of lights.'.
Dec 9 : 'This room has very good condition for the perceived brightness, because this room has well contrast color although the color of ceiling is middle tone.'.
Dec 10 : 'You should consider the perceived brightness very carefully. Because this room may has bad condition for perceived brightness, since the ceiling is dark color. Increase the number of lights, or use additional indirect lights.'.
Dec 11 : 'You should consider the perceived brightness carefully. Because this room may has bad condition for perceived brightness, since the ceiling is dark color. Use additional indirect lights for the ceiling.'.
Dec 12 : 'This room has bright color, and you are going to use high luminaire for the direct lighting. So the perceived brightness will be good. But, if you still concern about the perceived brightness, then increase the number of lamps.'.
Dec 13 : 'This room has bright color, and you are going to use high luminaire for the direct lighting. So the perceived brightness will be good. So, you may not need that many lights.'.
Dec 14 : 'This room does not have good condition for perceived brightness, because of the color of the room. Although you are going to use high luminaire, you may want to use more lights to make the room brighter.'.
Dec 15 : 'This room does not have good condition for perceived brightness, because of the color of the room. If you still concern about the perceived brightness, then use more lights to make the room brighter.'.
Dec 16 : 'This room has fairy good condition for perceived brightness. Although you are going to use low-luminaire, the color contrast of this room is high, so the perceived brightness will be good.'.
Dec 17 : 'This room has fairy good condition for perceived brightness and the number of lightin that you are going to use is enough. But, if you still concern about perceived brightness, then increase the level of illuminance'.
Dec 18 : 'Although the condition for perceived brightness is not good, because luminance is low, the color contrast of the room is low. But, you do not have to concern much about perceived brightness because the overall color of the room is bright
If
If you want to make it more brighter, then increase the number of lights.'.
Dec 19 : 'You have to very carefull with the perceived brightness, because the condition of this room is bad (low contrast, dark color, low-luminaire). You better increase the number of lights, and increase the level of luminance also.'.
Dec 20 : 'If you are going to use indirect lighting only, then you should consider the perceived brightness, expecially if the color of the room is not well contrast nor bright.'.
Dec 21 : 'Although you are going to use indirect lighting only, you do not have to worry about the perceived brightness, because the color of the room is well contrast or bright.'.
Dec 22 : 'If you are going to use only low-luminaire for indirect lighting then the perceived brightness will not be good. You should increase the number of lights, level of luminance or add additional direct lighting.'.
Dec 23 : 'This room has very good condition for the perceived brightness, regardless the number of lamps that you are going to use. Because this room has well contrast and you are going to use direct lighting with high-luminaire.'.
Dec 24 : 'If the color contrast of the room is low and the color of the room is dark, you have to be carefull with the perceived brightness.'.


Question 1 : 'Is there furniture that has highly polished wood, glossy surfaces or glass-covered desk top?'
Why 'The chracteristics of furniture can affect the reflected glare.'
Answers 1'yes'
        2'no'

Question 2 : 'What kind of lighting are you going to use?'
Why 'lighting can affect the reflected glare and perceived brightness.'
Answers 1'direct'
        2'indirect'
        3'both'

Question 3 : 'Are you going to use high-luminance lamps?'
Why 'the characteristics of lamp affect reflected glare and perceived brightness.'
Answers 1'yes'
        2'no'

Question 4 : 'Are the colors of the furniture and walls well contrast?'
Why 'the contrast of color is important for perceived brightness.'
Answers 1'yes'
        2'no'

Question 5 : 'How is the color of ceiling in the room?'
Why 'the color of ceiling will affect to perceived brightness with the kind of lighting.'
Answers 1'Bright'
        2'Middle tone'
        3'Dark'

Question 6 : 'How many lights are you going to use in the room?'
Why 'the number of lights will affect to the perceived brightness'
Answers 1'Less than 5'
        2'Between 6-10'
        3'More than 11'

Rule 1:
Why 'reflected glare is affected by polished furniture.'
If q1a2 then d1.

Rule 2:
Why 'high-luminaire will affect to the polished furniture.'
If q1a1 & q2a1 & q3a1 then d2.

Rule 3:
Why 'direct light will affect to the polished furniture'
If q1a1 & q2a1 & q3a2 then d3.

Rule 4:
Why 'reflected glare is not affected by indirect lighting.'
If q1a1 & q2a2 & q3a1 then d4.

Rule 5:
Why 'reflected glare is not affected by indirect lighting'
If q1a1 & q2a2 & q3a2 then d4.

Rule 6:
Why 'using both lighting method can affect reflected glare'
If q1a1 & q2a3 & q3a1 then d5.

Rule 7:
Why 'using both lighting method can affect reflected glare, even with low-luminaire.'
If q1a1 & q2a3 & q3a2 then d6.

Rule 8:
Why 'high-uminaire, high contrast, direct lighting, and bright color'
If q2a1 & q3a1 & q4a1 & q5a1 & (q6a1 or q6a2 or q6a3) then d7.

Rule 9:
Why 'high-uminaire, high contrast, and direct lighting'
If q2a1 & q3a1 & q4a1 & q5a2 & (q6a1 or q6a2) then d8.

Rule 10:
Why 'high-uminaire, high contrast, and direct lighting'
If q2a1 & q3a1 & q4a1 & q5a2 & q6a3 then d9.

Rule 11:
Why 'dark ceiling color with few lights.'
If q2a1 & q3a1 & q4a1 & q5a3 & (q6a1 or q6a2) then d10.

Rule 12:
Why 'dark ceiling color with low perceived brightness'
If q2a1 & q3a1 & q4a1 & q5a3 & q6a3 then d11.

Rule 13:
Why 'good perceived brightness with less or appropriate number of lights'
If q2a1 & q3a1 & q4a2 & q5a1 & (q6a1 or q6a2) then d12.

Rule 14:
Why 'good perceived brightness with too many lights'
If q2a1 & q3a1 & q4a2 & q5a1 & q6a3 then d13.

Rule 15:
Why 'dark room color, with high luminaire'
If q2a1 & q3a1 & q4a2 & (q5a2 or q5a3) & (q6a1 or q6a2) then d14.

Rule 16:
Why 'dark room color and the number of lights'
If q2a1 & q3a1 & q4a2 & (q5a2 or q5a3) & q6a3 then d15.

Rule 17:
Why 'low-luminaire with high color contrast with bright color'
If q2a1 & q3a2 & q4a1 & (q5a1 or q5a2 or q5a3) & (q6a1 or q6a2) then d16.

Rule 18:
Why 'dark ceiling color with low perceived brightness with the number of lights'
If q2a1 & q3a2 & q4a1 & (q5a1 or q5a2 or q5a3) & q6a3 then d17.

Rule 19:
Why 'low color contrast with bright room color'
If q2a1 & q3a2 & q4a2 & (q5a1 or q5a2) & (q6a1 & q6a2 & q6a3) then d18.

Rule 20:
Why 'low-luminaire, low contrast, dark room color'
If q2a1 & q3a2 & q4a2 & q5a3 & (q6a1 & q6a2 & q6a3) then d19.

Rule 21:
Why 'indirect color with high contrast'
If q2a2 & q3a1 & q4a1 & (q5a1 or q5a2 or q5a3) & (q6a1 or q6a2 or q6a3) then d21.

Rule 22:
Why 'indirect color with high contrast'
If q2a2 & q3a1 & q4a2 & (q5a1 or q5a2) & (q6a2 or q6a3) then d21.

Rule 23:
Why 'indirect color with low contrast'
If q2a2 & q3a1 & q4a2 & q5a3 & (q6a1 or q6a2 or q6a3) then d20.

Rule 24:
Why 'indirect color with low contrast'
If q2a2 & q3a1 & q4a2 & (q5a1 or q5a2) & q6a1 then d20.

Rule 25:
Why 'number of lamps and high contrast with brigt color'
If q2a3 & q3a1 & (q4a1 or q4a2) & (q5a1 or q5a2) & (q6a1 or q6a2 or q6a3) then d23.

Rule 26:
Why 'dark color with low contrast'
If q2a3 & (q3a1 or q3a2) & q4a2 & q5a3 & q6a1 then d24.

Rule 27:
Why 'low-luminaire with indirect lighting'
If q2a2 & q3a2 then d22.