DOCUMENT MANAGEMENT APPARATUS AND NON-TRANSITORY COMPUTER READABLE MEDIUM

1 . A document management apparatus allowing operators of plural terminal devices connected to the document management apparatus to collaboratively edit a document, the document management apparatus comprising:

a display controller configured to display a screen on a display of a first terminal device according to a predetermined condition, the screen allowing an input of additional information to an edit, the edit made from the first terminal device to the document.

wherein the predetermined condition is related to one or more terminal devices connected to the document management apparatus other than the first terminal device.

2 . The document management apparatus according to claim 1 , wherein the predetermined condition includes the number of the one or more terminal devices connected to the document management apparatus other than the first terminal device.

3 . The document management apparatus according to claim 2 ,

wherein the predetermined condition includes the number of the one or more terminal devices connected to the document management apparatus other than the first terminal device being equal to or less than a predetermined number.

4 . The document management apparatus according to claim 2 ,

wherein the predetermined condition includes decrease in the number of the one or more terminal devices connected to the document management apparatus other than the first terminal device.

5 . The document management apparatus according to claim 1 , wherein the predetermined condition includes a specific attribute of the document.

6 . The document management apparatus according to claim 1 , wherein the predetermined condition includes attributes of operators of the plural terminal devices connected to the document management apparatus.

7 . The document management apparatus according to claim 1 , further comprising:

an edit unit configured to invalidate the edit when no additional information is provided from the screen.

8 . The document management apparatus according to claim 1 , further comprising:

a storage configured to store the additional information provided from the screen in association with location information of the edit indicating a location of the edit in the document.

9 . The document management apparatus according to claim 1 ,

wherein the display controller is configured not to display edit history of the edit on the display of the first terminal device if the edit is an edit made while the number of terminal devices connected to the document management apparatus is equal to or more than a predetermined number.

10 . A document management apparatus according to claim 1 , wherein the predetermined condition includes an occurrence of an utterance at a second terminal device connected to the document management apparatus.

11 . The document management apparatus according to claim 10 ,

wherein the predetermined condition includes whether the utterance at the second terminal device includes a first specific word.

12 . The document management apparatus according to claim 10 , further comprising:

an edit unit configured to invalidate the edit in a case where no additional information is provided from the screen.

13 . The document management apparatus according to claim 11 , further comprising:

an edit unit configured to invalidate the edit in a case where no additional information is provided from the screen.

14 . The document management apparatus according to claim 10 , further comprising:

a storage configured to store the additional information provided from the screen in association with location information of the edit indicating a location of the edit in the document.

15 . The document management apparatus according to claim 11 , further comprising:

a storage configured to store the additional information provided from the screen in association with location information of the edit indicating a location of the edit in the document.

16 . The document management apparatus according to claim 14 ,

wherein the storage is configured to store utterance information of the utterance as the additional information if the utterance includes a second specific word.

17 . The document management apparatus according to claim 15 ,

wherein the storage is configured to store utterance information of the utterance as the additional information if the utterance includes a second specific word.

18 . The document management apparatus according to claim 10 ,

wherein the display controller is further configured to display edit history of the edit on the display of the first terminal device according to a state of the utterance.

19 . The document management apparatus according to claim 10 , wherein the controller is configured to display the edit on the display of the first terminal device if

(a) the number of precedent utterances at the second terminal device prior to the utterance is larger than a predetermined number, or

(b) the utterance is louder than a predetermined volume.

20 . A non-transitory: computer readable medium storing a program that causes a processor of a document management apparatus to execute a document management process, the document management apparatus allowing operators of plural terminal devices connected to the document management apparatus to collaboratively edit a document, the process comprising:

display a screen on a display of the first terminal device according to a predetermined condition, the screen allowing an input of additional information to an edit, the edit made from the first terminal device to the document,

wherein the predetermined condition is related to one or more terminal devices other than the first terminal device.