JP7519062B2 - Meeting System - Google Patents

Description

The present invention relates to a meeting system, and more specifically to a meeting system that enables efficient sharing of information held by each contractor at a construction site and eliminates the need to create paper documents.

At construction sites, it is common for the main contractor to work with multiple subcontractors (companies and individual business owners) of various sizes to work together. Many of the tasks undertaken by these multiple subcontractors are dangerous, and there is often competition for space and traffic lines. To address these workplace issues and prevent danger, a meeting is usually held at least once a day at the construction site, with all the subcontractors gathering under the direction of the main contractor. During these meetings, the information that each contractor wishes to share is shared in the form of paper documents.

Incidentally, examples of systems used at construction sites include the material transportation history management system disclosed in Patent Document 1 and the drilling data management system disclosed in Patent Document 2.
The system of Patent Document 1 is a system for understanding the transportation history of soil materials, aggregates, and the like used in civil engineering works.
Moreover, the system of Patent Document 2 is a drilling data management system for inserting reinforcing members, with the aim of improving work efficiency and obtaining accurate management data.

The construction communication system in Patent Document 3 is a system for communication between a client and a construction contractor when constructing a house or the like, and is equipped with a display means for displaying construction photograph images taken during construction, an adjustment request sending means for adjusting meeting schedules, and a meeting schedule registration means for accepting these.

JP 2016-57882 A JP 2019-90263 A JP 2007-286792 A

As mentioned above, paper documents are used for meetings at construction sites. This requires time and effort to create paper documents, and if the number of people attending a meeting increases or decreases unexpectedly, it takes time and effort to duplicate the documents. In addition, meetings are held every day during the construction period, and materials are prepared for each meeting, resulting in a huge consumption of paper resources.

The systems in Patent Document 1 and Patent Document 2 are each used for specific purposes, and it would be difficult to repurpose them for meetings.

The system of Patent Document 3 is designed for one-to-one or one-to-many communication between a client and a construction contractor, and is not suitable for meetings at a construction site where multiple contractors mutually confirm and adjust schedules.
In addition, in the relationship between the client and the construction contractor, the sharing of information that would be necessary between contractors at a construction site, such as when competing for space or checking progress on the day, is not anticipated, so it would be difficult to use the space for meetings as well.

During meetings at construction sites, each contractor shares information they have. If a system were introduced, each contractor would have to input the wide range of information that needs to be shared. This would result in an enormous amount of input work, and would increase the risk of human error.

The present invention has been developed in response to the above-mentioned problems.
In other words, an object of the present invention is to provide a meeting system that enables efficient sharing of information held by each contractor at a construction site and eliminates the need to create paper documents.

After extensive research, the inventors have found that the above problem can be solved by providing a work schedule input screen, a hazard prediction input screen, and a work performance input screen, consolidating data input from multiple terminals on a common server, and editing the hazard prediction input screen and the work performance input screen based on the work schedule data and including part of the work schedule data. The present invention is based on this finding.

The present invention relates to (1) a meeting system used for meetings at a construction site having multiple areas , comprising terminals used by multiple contractors respectively and a server connected to the terminals via a network, the terminals comprising: a work schedule input means for creating a work schedule input screen for inputting work schedules for a specific area at the time of the meeting; a hazard prediction input means for creating a hazard prediction input screen for inputting hazard predictions foreseen for the work; a work performance input means for creating a work performance input screen for inputting work performance; and an input assistance means ; the server collects and saves the work schedule input screen input by the terminal as work schedule data, the hazard prediction input screen input by the terminal as hazard prediction data, and the work performance input screen input by the terminal as work performance data by date and account; the terminal displays the work schedule data, hazard prediction data, or work performance data transmitted from the server by transmitting a request to the server;
The hazard prediction input screen and work performance input screen are edited based on planned work data aggregated by date and account and include a portion of the planned work data aggregated by date and account, an input assistance means extracts from a server and displays content pre-recorded in the work plan input screen, hazard prediction input screen, or work performance input screen, and a user inputs the recorded content by selecting it, and content changed in the work performance data is displayed so as to be identifiable from the planned work data aggregated by date and account, and the meeting system is capable of outputting content entered in the work plan input screen, hazard prediction input screen, and work performance input screen to the outside .
In the following description of the present application, the time when the meeting is held is referred to as the "start time of work."
Also, the vendor who operates the terminal is called the "user."

The present invention resides in (2) the meeting system described in (1) above, in which the hazard prediction input screen is configured to add input items set for inputting hazard predictions related to the content of the work to the work schedule data.

The present invention (3) resides in the meeting system described in (1) or (2) above, in which meetings are held repeatedly and the work performance input screen includes work schedule data input in the previous meeting.

The present invention resides in (4) a meeting system described in any one of claims 1 to 3, in which the server associates work schedule data, hazard prediction data, and work performance data input from multiple terminals with accounts assigned to each terminal, and sorts and stores them by account .

The present invention resides in (5) a meeting system described in any one of (1) to (4 ), in which the work plan input screen has as input items at least a "work plan" which is the content of the work, "equipment brought in" which is materials or large equipment required for the work, and "large equipment used", the work plan input screen is capable of inputting image data, the hazard prediction input screen has as input items at least a "hazard prediction activity" which is the content of the hazard prediction, a "pre-work inspection" which is an inspection performed during work, and "individual signature" which is the signature of each worker, and the work performance input screen has as input items at least "today's work performance" which is the content of the work, "equipment brought in" which is materials or large equipment used in the work, and "large equipment used" .

The present invention resides in (6) a meeting system described in any one of (1) to (5) above, in which the work schedule input screen has an alert display function for displaying an alert when an account inputs content that conflicts with content input by another account.

In the meeting system, the server consolidates and stores work schedule data, hazard prediction data, and work performance data, making it possible to consolidate information held by multiple contractors.

In addition, because the terminals display work schedule data, hazard prediction data, or work performance data, it is possible to hold meetings (information sharing) based on the content entered into the meeting system, not only in meetings attended by all contractors working at the construction site, but also in meetings attended by only a select few contractors. This also eliminates the need to create new paper documents for information sharing.

Furthermore, since the hazard prediction input screen and the work performance input screen are edited based on the work schedule data and are edited to include part of the work schedule data, there is no need to input new work details into the hazard prediction input screen or the work performance input screen, reducing the input burden on the user.
It is also possible to prevent human errors such as missing input data by the user.

In the meeting system, the hazard prediction input screen has input items set up for inputting hazard predictions related to the content of the work added to the work schedule data, so there is no need to input new work details on the hazard prediction input screen, reducing the input burden on the user.
It is also possible to prevent human errors such as missing input data by the user.

In the meeting system, the work performance input screen contains the work schedule data input in the previous meeting, so that there is no need to input new work details in the work performance input screen, and the input burden on the user is reduced.
It is also possible to prevent human errors such as missing input data by the user.

In the meeting system, the input assistance means extracts from the server the contents that were input before the start of work, displays them, and allows the user to select an item and input the selected content, thereby reducing the burden on the user in input work and preventing input errors.

In the meeting system, the input assistance means displays pre-recorded content and allows the user to select an option to input the recorded content, thereby reducing the burden on the user in inputting information and preventing input errors.

In the meeting system, the server associates work schedule data, hazard prediction data, and work performance data input from multiple terminals with accounts assigned to each terminal, and stores the data in order by account. This means that, for example, work schedule data is sorted by contractor. This improves data visibility, making it possible to share information during meetings more efficiently.

FIG. 1 is an explanatory diagram showing a meeting system. FIG. 2 is a block diagram showing a meeting system. FIG. 3 is an explanatory diagram showing a work schedule input screen. FIG. 4 is an explanatory diagram showing a danger prediction input screen. FIG. 5 is an explanatory diagram showing a work performance input screen. FIG. 6 is an explanatory diagram showing a flow for creating risk prediction data and work performance data from work schedule data. FIG. 7 shows an example of work schedule data displayed on the terminal.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings as necessary.
In the drawings, the same elements are given the same reference numerals and duplicated explanations are omitted.
In addition, unless otherwise specified, the positional relationships such as up, down, left, right, etc. are based on the positional relationships shown in the drawings. Furthermore, the dimensional ratios of the drawings are not limited to the ratios shown in the drawings.

The meeting system of the present invention is used for meetings that are held daily at construction sites for civil engineering, building construction, etc. At construction sites, it is common for a plurality of contractors to participate in the work.
For example, at a construction site, contractors such as scaffolding builders and concrete workers participate and hold meetings to share information. For this reason, a terminal is assigned to each contractor, and the contractors who operate each terminal become users, and each user is assigned an account.

FIG. 1 is an explanatory diagram showing a meeting system.
The meeting system is composed of a server and a plurality of terminals connected to the server via a network.

The server has a data processing function and a data storage function, and aggregates and stores data input from multiple terminals.
The server may be a single server or multiple servers, and may exist on a cloud.
Moreover, the network may be wired or wireless.

The terminal has a data input function and a data output function. The terminal may be a publicly known smartphone, tablet, PC, etc. In this case, the data input function of the terminal may be a touch operation on the screen or an input operation using a keyboard or mouse, etc., and the data output function may be a screen display, etc.

FIG. 2 is a block diagram showing a meeting system.
The terminal has a work schedule input means for creating a work schedule input screen for inputting work plans during a meeting, a hazard prediction input means for creating a hazard prediction input screen for inputting hazard predictions foreseen regarding the work, a work performance input means for creating a work performance input screen for inputting work performance, and an input assistance means.
The work schedule input means, the risk prediction input means, the work performance input means, and the input assistance means are provided as applications that are installed in advance on the terminal. These will be described later.

FIG. 3 is an explanatory diagram showing a work schedule input screen.
As described above, the work schedule input means is installed in advance as an application on the terminal, and the work schedule input means creates a work schedule input screen. The work schedule input screen is a table in the form of multiple rows and columns, with items to be entered displayed as fixed items at the top row.
In this embodiment, there are three tables with headings: "Tomorrow's work schedule," for inputting work schedules; "Incoming equipment and materials," for inputting materials to be brought to the construction site; and "Large equipment used," for inputting large equipment to be used.
By dividing the items into multiple tables on the work schedule input screen, the user can input the work schedule for each item. This allows, for example, the fact that multiple large pieces of equipment are scheduled to be brought in at the same time to be saved as work schedule data, making it easier to determine whether there will be any problems at the construction site during meetings.

Here, the first line of the above-mentioned table displays the items to be entered that have been set in advance in the work schedule input means, and the user enters the corresponding content into each of the blank spaces on the second line and onwards. For example, in the "Tomorrow's work schedule" table, the first line displays "Work site," "Work content," "Scheduled time," "Number of people," "Scheduled workers," and "Notes." A user entering a work schedule selects the blank space that the user wants to enter information into on the work schedule input screen, and the blank becomes ready for input.

For example, if the user wishes to enter a work schedule from 10:00 to 15:00 in the A-1 area, the user selects the blank space in the "Work Site" column on the second row or lower of the "Tomorrow's Work Schedule" table and enters "A-1 Area."
Next, by selecting "Scheduled Time" on the same line and inputting "10:00 to 15:00", the above content is input into the work schedule input screen.

The terminal has an input assistance means for assisting a user in inputting information.
When a user of the input assistance means selects a blank field for input, the input assistance means retrieves from the server and displays the contents previously registered for that field. Also, if there is content previously (e.g., the previous day) entered into the work schedule input screen for the same field, the input assistance means displays that content.
When the user selects the displayed content or the previously input content, the input assistance means inputs the selected content into the work schedule input screen.

For example, in the "work site" item, the pre-registered contents of "A-1 area,""A-2area," and "A-3 area" can be displayed.
Also, assume that "north exterior area" was entered in the "work site" field the previous day. In this case, when the user selects the blank field for "work site" on the work schedule input screen for input, the input assistance means displays the previously registered "A-1 area,""A-2area," and "A-3 area," as well as the previously entered "north exterior area."

When the content that the user wishes to input is one of the contents displayed by the input assistance means, the user selects the content, and the content is input to the input display screen by the input assistance means. For example, in the above example, if the user selects the displayed "A-1 area,""A-1area" is input into the blank field of the "work site" item.
By providing the terminal with the input assistance means, it becomes possible to reduce the burden on the user regarding input operations and to prevent input errors.

The work schedule input screen on which the user inputs the work schedule is transmitted as work schedule data from the terminal to the server via the network and is stored in the server.
Here, the server collects and stores the work schedule data sent from multiple terminals by the date of the scheduled work and by account (i.e., contractor). Work is performed every day, and by collecting and storing the work schedule data by the date on which the work is scheduled, it becomes possible to refer to the data by date.

In addition, by consolidating data by account, work done by the same contractor can be consolidated and made accessible, which can be used, for example, when holding a meeting among workers from a particular contractor.

In the work schedule input screen, image data can be input in formats such as bmp and jpg as necessary. This makes it possible to save additional information such as a diagram showing the flow of the work schedule as work schedule data on the server in addition to the pre-set input items.

FIG. 4 is an explanatory diagram showing a danger prediction input screen.
Here, risk prediction refers to the process of identifying anticipated risks and countermeasures for work scheduled at a construction site.
As described above, the terminal has the danger prediction input means installed in advance as an application, and the danger prediction input means creates the danger prediction input screen.
The risk prediction input means is edited based on the work schedule data.

The hazard prediction input means also includes a portion of the work schedule data. Specifically, the hazard prediction input screen is created as multiple tables: a table edited by adding input items as columns to the work schedule data related to work schedules summarized in a matrix format, and a table generated independently of the work schedule data.

In the hazard prediction input means, the "KY activity" table, which is a table created from the work schedule data, displays pre-set input items in the first row, just like the work schedule input screen. In this embodiment, in the hazard prediction input screen, "work risk," "reduction measures," "severity," and "evaluation points" are added as input items to the work schedule data. In other words, the table is one in which columns are added for the number of input items added to the "tomorrow's work schedule" table in the work schedule input screen.

In addition, in this embodiment, the danger prediction input screen has tables for "Start-of-work inspection,""Individualsignatures," and "Hazard prediction activities" added to it, independent of the work schedule data.
In these tables, like the work schedule input screen, the second and subsequent rows are blank for input. When the user selects a blank field into which he or she wishes to input data, that blank field becomes available for input.

The terminal has an input assistance means, and similar to the above-mentioned work schedule input screen, assists the user in inputting by displaying contents previously entered on the hazard prediction input screen and/or contents previously registered.

On the danger prediction input screen, the user can input the content as an image.
For example, a worker can input a signature regarding the worker's health condition by touching the screen as an image in a BMP format or the like.

The danger prediction input screen on which the user enters danger prediction information is sent from the terminal to the server via the network as danger prediction data, where it is aggregated and saved by date and account.

FIG. 5 is an explanatory diagram showing a work performance input screen.
As described above, the terminal has the work result input means installed as an application in advance, and the work result input means creates the work result input screen. The work result input screen is edited based on the work schedule data.
The work result input screen also includes a portion of the work schedule data, and is created as a table in a matrix format similar to the work schedule data.
That is, on the work performance input screen, the contents of the work schedule data are input in advance as input items.

In this embodiment, the work performance input screen consists of three tables: "Today's work performance,""Equipment and materials brought in," and "Large equipment used," which correspond to the tables "Tomorrow's work schedule,""Equipment and materials brought in," and "Large equipment used" on the work schedule input screen.
In the work schedule input screen, the second and subsequent rows in each table are input fields, just like in the work schedule input screen. When the user selects the field in which they want to enter data, the field becomes ready for input, and the user enters the planned work, i.e., the work results for the content entered in the work schedule input screen.

On the work performance input screen, the work schedule data input in advance and the contents input on the work performance input screen are displayed in a distinguishable manner.
Specifically, the two are displayed in different fonts and colors.
In this embodiment, the previously input work schedule data is displayed in black.
On the other hand, the content entered by the user on the work performance input screen is displayed in red, and if the user deletes an item that was previously entered, it is displayed in red with a strikethrough.

For example, if the work content entered in the work schedule data is not carried out, the user can select that item and delete the work content that was in the work schedule data, and on the work performance input screen, that item will be displayed in red, or in red with a strikethrough, indicating the content that has been changed from the original work schedule data.
This makes it easier to visually identify differences between planned and actual work results, and makes it easier to recognize what was not done as planned. This makes it possible to share information more efficiently during meetings.

On the work history input screen, the terminal has an input assistance means similar to that of the work schedule input screen and the hazard prediction input screen, and assists the user in inputting data by displaying information previously entered on the hazard history input screen or items that have been registered in advance.

The work performance input screen on which the user enters work performance data is sent from the terminal via the network to the server, where it is aggregated and saved by date and account.

FIG. 6 is an explanatory diagram showing a flow for creating risk prediction data and work performance data from work schedule data.
As described above, the risk prediction input screen and the work performance input screen are created by editing the work schedule data.
This eliminates the need to newly input work details on, for example, the risk prediction input screen or the work performance input screen, thereby reducing the input burden on the user.
It is also possible to prevent human errors such as missing input data by the user.

FIG. 7 shows an example of work schedule data displayed on the terminal.
The meeting system has an output function for outputting work schedule data, hazard prediction data, or work performance data collected in a server.
In the terminal, as an output function, a request is sent from the terminal to the server, whereby work schedule data, risk prediction data, or work performance data is sent from the server and displayed on the terminal.
At the terminal, these data are displayed in an appropriate manner.
For example, work schedule data, risk prediction data, and work performance data are displayed in tab format, and the user can switch between tabs to display any data.

By having the terminal display work schedule data, hazard prediction data, or work performance data, it is possible to share information based on the content entered into the meeting system not only in meetings attended by all contractors working at the construction site, but also in meetings attended only by a select few contractors.
It also eliminates the need to create new paper documents to share information.

Furthermore, the server associates data entered from multiple terminals with the accounts assigned to each terminal and stores them in order by account, so that, for example, work schedule data is sorted by contractor. This improves the visibility of the current data displayed by the terminals, making it possible to share information during meetings more efficiently.

In addition, the meeting system outputs the current state data to the outside as data, for example in PDF format, using the output function.
This makes it possible to use various data aggregated on the server on an external computer or print it out on paper.
For example, the operator's signature on the danger prediction input screen can be displayed on an external computer.

In the meeting system, it is possible to set a specific account as an account with administrator authority in advance. Administrator authority is the authority to grant or revoke input authority to the terminal, and to increase, decrease, or change the input items that are preset on the work schedule input screen, hazard prediction input screen, and work performance input screen.
Administrator authority can be assigned to the main contractor, who is responsible for managing the progress of the entire construction project, for example. This makes it possible to respond to an increase or decrease in the number of contractors and set input items according to the work being done at the site.

The process for applying the meeting system is described below.
The meeting time (start time of work) is set to 13:00 on the day. At the time of the meeting, the work schedule data and the corresponding hazard prediction data are inputted into the meeting system by each user.
In addition, the work results data for the day of the meeting has been entered.

Specifically, for example, at the time of the meeting on June 2nd, work schedule data for the work scheduled to be performed on June 3rd, hazard prediction data for hazard prediction related to that work, and work performance data have been input. The work performance data for June 2nd also includes work to be performed after 1pm, i.e., work that has not been completed at the time of the meeting. If a discrepancy occurs between the content of the work performance data and the work that has actually been completed, the discrepancy is corrected by inputting the content of the work that has actually been completed on the work performance input screen at the time the work is completed. In other words, at the time of the meeting on June 2nd, the work performance data for the previous day, June 1st, has been corrected at the time work on June 1st was completed.

As a result, the progress up to the previous day, the work schedule for that day, any associated hazard predictions, and the provisional work results for that day are all consolidated as current status data.
During meetings, information is shared by displaying current data on the devices used by each user.

As described above, when the user completes a task, the user modifies the task performance data already entered in accordance with the task that has actually been completed.
To give a specific example, when the work on June 2 is finished, the user inputs (modifies) the work results on the work results input screen based on the content that was actually completed on June 2. This input is done by the time of the meeting on the following day, June 3. Similarly, the work schedule data for the work scheduled for the following day, June 3, is also input by the user as appropriate by the time of the meeting on June 3.
The input work schedule data and work performance data will be used at the meeting on the following day, June 3rd.
The risk prediction data will be input by the user as appropriate by the morning assembly before work on the following day, June 3rd, and will be used in KY (risk prediction) activities at the morning assembly on June 3rd.

Here, since the meeting system displays work schedule data, hazard prediction data, or work performance data in response to a request from a terminal, it becomes possible to use the current status data even outside of meetings in which all contractors participate.
For example, risk prediction activities can be carried out by only the users involved, for example, by area of a divided construction site or by heavy machinery used.

Although the above describes a preferred embodiment of the present invention, the present invention is not limited to the above embodiment.

The number of tables and input items on the work schedule input screen, hazard prediction input screen, and work performance input screen are optional.

In this embodiment, the work schedule input means, the risk prediction input means, and the work performance input means are provided as applications installed on the terminal, but they may also be installed on a server.
In this case, since no application is installed on the device, it is not dependent on the available storage space on the device, and there is no restriction on the type of device; users can use any device they own, such as a smartphone, tablet, or PC.In addition, since no data is held on the device, there is no need for synchronization, etc.

An alert function can be provided on the work schedule input screen. For example, when multiple accounts input a schedule to use the same place at the same time, and it is determined that this is impossible to realize, an alert is displayed on the work schedule input screen to indicate that there is a conflict.
The criteria for determining whether or not there is interference can be set in advance and stored on a server or terminal, or can be created by machine learning.

In this embodiment, the work schedule input screen, the hazard prediction input screen, and the work performance input screen are in a format in which data is input directly from each screen, but this is not limited to the above.
For example, when the user selects an item that he or she wants to input, a separate dialogue box for input can be displayed. In this case, an appropriate input method can be set according to the item to be input, such as direct input or a selection method using a pull-down menu, which reduces the burden on the user in inputting information and prevents input errors.

The meeting system of the present invention can be widely used in meetings at construction sites where a main contractor who has undertaken the work works together with multiple subcontractors (companies, individual business owners) of various sizes to carry out work.
It can also be used for efficient information sharing at work sites where a single contractor is performing work.

A... Meeting system 1... Server (cloud server)
2: Terminal M1: Work schedule input means M2: Hazard prediction input means M3: Work performance input means M4: Input assistance means D1: Work schedule data D2: Hazard prediction data D3: Work performance data S1: Work schedule input screen S2: Hazard prediction input screen S3: Work performance input screen U: User

Claims (6)

A meeting system for use in meetings at a construction site having multiple areas , comprising terminals used by multiple contractors and a server connected to the terminals via a network,
The terminal has a work schedule input means for creating a work schedule input screen for inputting a work schedule in the specific area during a meeting, a hazard prediction input means for creating a hazard prediction input screen for inputting hazard predictions foreseen for the work, a work performance input means for creating a work performance input screen for inputting the performance of the work, and an input assistance means,
the server consolidates and stores the work schedule input screen inputted by the terminal as work schedule data, the hazard prediction input screen inputted by the terminal as hazard prediction data, and the work performance input screen inputted by the terminal as work performance data by date and account,
the terminal displays the work schedule data, the hazard prediction data, or the work performance data transmitted from the server by transmitting a request to the server,
The risk prediction input screen and the work performance input screen are edited based on the work schedule data aggregated by date and account, and include a part of the work schedule data aggregated by date and account,
the input assistance means extracts from a server and displays contents pre-recorded on the work schedule input screen, the hazard prediction input screen, or the work performance input screen, and allows a user to input the recorded contents by selecting one of the contents;
The content of the changes in the work performance data is displayed in a identifiable manner from the work schedule data aggregated by date and account,
A meeting system capable of outputting to the outside the contents inputted into the work schedule input screen, the hazard prediction input screen, and the work performance input screen . The meeting system according to claim 1, wherein the hazard prediction input screen is configured to add input items set for inputting the hazard prediction related to the content of the work to the work schedule data. The meetings are held repeatedly,
3. The meeting system according to claim 1, wherein the work performance input screen includes the work schedule data inputted in the previous meeting. The server associates the work schedule data, the hazard prediction data, and the work performance data input from the plurality of terminals with the accounts assigned to each of the terminals;
4. The meeting system according to claim 1, wherein the information is stored in a sorted manner for each account. the work schedule input screen has, as input items, at least a "work schedule" which is the content of the work, "equipment to be delivered" which is equipment or large equipment required for the work, and "large equipment to be used",
The work schedule input screen is capable of inputting image data,
The hazard prediction input screen has, as input items, at least a "hazard prediction activity" which is the content of the hazard prediction, a "start-of-work inspection" which is an inspection to be performed during the work, and an "individual signature" which is the signature of each worker,
A meeting system as described in any one of claims 1 to 4, wherein the work performance input screen has as input items at least "Today's work performance", which is the content of the work, "Delivered equipment" which is the equipment or large equipment used in the work, and "Large equipment used". The meeting system according to any one of claims 1 to 5, wherein the work schedule input screen has an alert display function for displaying an alert when the account inputs content that conflicts with content input by another account.

Images