JP2002073834A - Drawing control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily deliver drawings, rationally control the drawings, facilitate searching, and reduce cost by reutilization of electronic information. SOLUTION: This system is provided with a drawing forming specification writing part 9 connected to a transmission passage 4 to receive writing of drawing forming specification information as contents of instruction of the drawing ordering side A from the drawing ordering side A, and provide the written drawing forming specification information to be read by the drawing order accepting side C certified by the drawing ordering side A, a drawing forming part 1 provided on the certified drawing order accepting side C, and connected to the transmission passage 4 to read the drawing forcing specification information written in the drawing forming specification writing part 9, form drawings based on the read drawing forming specification information, and transmit obtained drawing data through the transmission passage 4, and a drawing storage part 10 connected to the transmission passage 4 to receive the drawing data transmitted from the drawing forming part 1 to be stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for a facility or a facility operated and managed by, for example, a public corporation, a local government, a company, or the like, receives a drawing on the system from a bidder, and manages the drawing. The present invention relates to a drawing management system.

[0002]

2. Description of the Related Art In public corporations, local governments, companies, and the like, when systems for various facilities and equipment are ordered, completed drawings of the systems are delivered to contractors on a paper basis. A drawing management system that manages the delivered completed drawings by organizing them on a bookshelf is common. This is because confidentiality is an essential condition for drawings stored by a company or the like, and a paper base is suitable for preventing copying and the like.

[0003] Therefore, despite the fact that a contractor prepares a drawing in an optimum data format for the contents of an order, the contractor outputs the drawing on paper in accordance with an instruction to prepare a completed drawing. Regarding the drawing delivery method, the person in charge of the contractor directly brings the completed paper-based drawing created, or delivers it by mail or home delivery.

[0004] However, when a public corporation, a local government, a company, or the like places an order for renewal work every year, the contractor in charge of the work for the previous year cannot always receive an order. If a contractor receives an order from a contractor who performed the work in the previous year, the ordering party must obtain a copy of the completed drawing of the work in the previous year and create a new drawing based on this drawing. When creating this drawing, the data format of the drawing depends on the software used by the contractor. This not only makes it difficult for the ordering side of a company or the like to manage the history of drawings in the previous year's work, but also there is a possibility that drawings of different data formats exist for the same work for each year. This not only complicates the drawing management, but also has the problem that not only the cost of drawing the previous year is wasted but also resources are wasted.

On the other hand, recently, the environment of the Internet has been improved and electronic data exchange has been actively carried out, and the delivery and management of completed drawings have been studied for digitization and use of a network.

With the introduction of computerization and networks,
It is expected that the speed of work at the time of drawing delivery and the efficiency of work at the time of drawing update will be improved. In addition, by utilizing the characteristics of the Internet, corporations, municipalities, companies, etc. will be able to do business not only with drawing delivery and updating work, but also with more traders, and order better systems at lower prices. Side effects that can be expected.

[0007] When a public corporation, a local government, a company, or the like places an order for a facility management system, it is better to open-bid on the Internet than to give bidders only to traders in the past. It is anticipated that it will be possible to place orders with lower cost contractors. It is anticipated that businesses that have not been blessed with bids will be able to expand business opportunities and improve their technical capabilities, which will have a positive effect.

However, when a network such as the Internet is used for managing drawings, unless appropriate security measures are taken, there is a risk that an outsider accesses the information via the network and illegal copying is performed. There is a problem that there is.

[0009] At present, electronic data exchange using the Internet requires HTML (Hyper Text Mark-up L).
Anguage) is performed using a protocol called HTTP. The HTML language is WWW (Wo
rld Wide Web) A language that promoted the spread of browsers.
However, the HTML language has a problem that it can only express based on a predetermined rule, and the contents that can be expressed are limited.

[0010] Furthermore, the method of exchanging electronic data using the Internet is a specific method, and the other party who wants to exchange data must have hardware and software for exchanging data. is there.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a first object of the present invention is to convert a drawing, which has been conventionally delivered on a paper basis, into electronic information and send the delivery to a network. Via the Internet, and further manage the delivered drawings as electronic information.
It is an object of the present invention to provide a drawing management system capable of speeding up delivery of drawings from a trader, streamlining drawing management, facilitating retrieval, and reducing costs by reusing electronic information.

A second object of the present invention is to use the Internet as a network, to eliminate the provisions of electronic information to be transmitted and received, and to limit the contents of expression.
It is an object of the present invention to provide a drawing management system capable of transmitting and receiving electronic information more generally.

[0013]

Means for Solving the Problems In order to achieve the above object, the present invention takes the following measures.

That is, according to the first aspect of the present invention, the drawing specification information, which is an instruction from the drawing ordering side, is received from the drawing ordering side and is connected to the transmission path, and the written creation specification information is transferred to the drawing ordering side. A drawing creation specification writing unit that can be viewed through the transmission path to the drawing order receiving side authenticated by the ordering side, and a drawing preparation specification writing unit that is provided on the authenticated drawing order receiving side and is connected to the transmission path and connected to the transmission path. A drawing creation unit that browses the written creation specification information via the transmission path, creates a drawing based on the browsed creation specification information, and transmits the drawing data of the created drawing via the transmission path, And a drawing storage unit that receives the drawing data transmitted from the drawing creation unit via the transmission path and stores the drawing data.

Therefore, in the drawing management system according to the first aspect of the present invention, by taking the above means,
Drawings previously delivered on paper can be digitized and delivered via a network.

According to a second aspect of the present invention, in the drawing management system according to the first aspect of the present invention, the drawing ordering side is connected to the transmission path, receives the drawing data transmitted from the drawing creating unit via the transmission path, If it is determined that the drawing based on the drawing data has been created based on the creation specification information,
The received drawing data is transmitted via the transmission path, and the drawing storage unit receives the drawing data transmitted from the drawing ordering side via the transmission path and stores the drawing data.

Therefore, in the drawing management system according to the second aspect of the present invention, by taking the above means,
You can save a drawing after confirming that it is created as specified.

According to a third aspect of the present invention, in the drawing management system according to the first or second aspect of the present invention, the drawing storage unit converts the data format of the received drawing data into XML and stores it.

Therefore, in the drawing management system according to the third aspect of the present invention, by taking the above means,
Software that depends on the data format is not required, and software purchase costs can be reduced.

According to the fourth aspect of the present invention, WWW is connected to the Internet, converts drawing specification information into XML data, transmits the converted data via the Internet, and authenticates a contracting party to which drawing is entrusted. A drawing ordering side composed of a server, connected to the Internet, receives the drawing specification information transmitted from the drawing ordering side via the Internet, and transmits the received drawing specification information to a trustee authorized by the drawing ordering side. A drawing creation specification display unit comprising a first Web server which can be browsed via the Internet; and a drawing specification information provided at an authorized consignee, connected to the Internet and displayed on the drawing creation specification display unit via the Internet. And create a drawing based on the browsed creation specification information, and convert the data format of the created drawing to XML. And drawing generation portion comprising a WWW server for transmission over the Internet by conversion, is connected to the Internet, the drawing data transmitted from the drafting unit received via the Internet, a second Web to save
A drawing storage unit comprising a server.

Therefore, in the drawing management system according to the fourth aspect of the present invention, by taking the above means,
Since information can be exchanged only by the software of the WWW client, there is no need to purchase useless software, and costs can be reduced.

According to a fifth aspect of the present invention, in the drawing management system according to the fourth aspect of the present invention, the drawing data stored in the drawing storage unit is updated in the drawing creation unit, and the updated drawing data is stored in the drawing storage unit. If the drawing creation unit does not have software capable of updating the drawing data stored in the drawing storage unit, the drawing storage unit transmits the software capable of updating the drawing data via the Internet. To the drawing preparation department.

Therefore, in the drawing management system according to the fifth aspect of the present invention, by taking the above means,
The trader can purchase software that can handle the data format of the completed drawing in a timely manner. This led to a survey of the data format of the drawings to be created,
The time required to purchase the software can be reduced.

According to a sixth aspect of the present invention, in the drawing management system of the fourth or fifth aspect, the drawing data stored in the drawing storage unit is updated by the drawing creation unit, and the updated drawing data is converted into the drawing data. When saving to the storage unit,
The updated drawing data is stored with update history information added.

Therefore, in the drawing management system according to the sixth aspect of the present invention, by taking the above means,
For example, it is possible to manage the history of what kind of construction was performed in the construction every year. This allows you to see what the difference is for each year,
Further, by storing only the difference, the amount of data to be stored can be reduced.

[0026]

Embodiments of the present invention will be described below with reference to the drawings.

An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a configuration diagram showing an example of the overall configuration of a drawing management system according to an embodiment of the present invention.

FIG. 2 is a diagram showing the flow of data when the drawing data transmitted from the trader system is stored.

That is, as shown in FIG. 1, a drawing management system according to an embodiment of the present invention comprises a company system A, a management center system B, a trader system C, and the Internet 4 for interconnecting these systems. It consists of.

The company-side system A is a system provided for a company that manages and operates facilities and equipment managed by itself.

Here, a computer 1 such as a personal computer and a VPN (Virtual Private Network) router 2
And the computer 1 and the VPN-capable router 2 have L
The VPN router 2 is connected to the Internet 4 through the AN 3, and further connected to the Internet 4. The computer 1 also includes WWW browser software 5.

With the above-described configuration, the company system A can browse the drawing data transmitted from the trader system C by using the WWW browser software 5 installed in the computer 1, The Internet 4 can be accessed via the LAN 3 and the VPN compatible router 2.

The management center side system B is a system provided in a management center for storing and managing drawings requested by a company (company side system A).

Here, the server 7, the VPN (Virtual Pr
ivate Network) router 2 and a database area 10. The server 7 and the VPN router 2 are connected to each other via a LAN 8, and are further connected to a VPN.
The corresponding router 2 is connected to the Internet 4. The server 7 and the database area 10 are connected via a dedicated line 11. The server 7 includes WWW browser software 5, a homepage area 9, and a database area 10.

The server 7 uses the WWW browser software 5 to access the Internet 4 via the LAN 8 and the VPN-compatible router 2. Further, the drawings are stored and managed in the database area 10, and the drawings stored in the database area 10 are transmitted to the company system A and the trader system C via the WWW browser software 5.

The homepage area 9 is an area for registering and storing a homepage for each trader. In the homepage for this trader, the company that orders the drawings stores the WWW browser software 5 of the company side system A. The drawing creation specification information and the like created using the information are registered. The contractor, who is the order receiving side of the drawing, uses the WWW browser software 5 of the contractor system C to browse the contents of this homepage to obtain the drawing specification information, which is the instruction content from the company. I have. Note that this home page is kept accessible only by authorized vendors by using, for example, digital authentication technology, and maintains the confidentiality of information.

The trader system C is a system provided on the trader side that has received an order request from a company (the company system A).

Here, each company is provided with a computer 1 comprising a personal computer or the like and a VPN (Virtual Private Network) -compatible router 2, and the computer 1 and the VPN-compatible router 2 are connected to each other via a LAN 12. Further, the VPN-compatible router 2 is connected to the Internet 4. The computer 1 also includes WWW browser software 5.

Although FIG. 1 shows only two companies, ie, the company a and the company b, as an example of the company system C, the present invention is not limited to the two companies.

With the above configuration, in the system C on the trader side, by using the WWW browser software 5 installed in the computer 1, the L
Internet 3 via AN3, VPN-compatible router 2
You have access to

Next, a method for storing a drawing performed in the management center side system B will be described.

In the supplier system C, the computer 1 is provided with software (not shown), and creates a drawing ordered from a company using the most appropriate software. For example, the document data is in the doc format, and the figure data is in the Autocad format. Further, the drawing created in this way is transmitted to the company system A or the management center system B via the Internet 4 by using a protocol such as FTP by using the WWW browser software 5.

In the management center side system B, the drawing transmitted directly from the trader side system C or once via the company side system A is received by the server 7, and further transferred from the server 7 to the database area 10. And save here. At this time, the data format of the drawing to be saved may be the data format created by the trader system C, or may be converted to XML and saved as described later.

When storing and managing drawings in the database area 10, a method is generally used in which drawings transmitted from the supplier system C or the company system A are classified according to their contents and stored in a predetermined subdirectory. Can be considered. However, this must be intentionally designed by the operator on the management center side. In the case where the number of drawings to be handled is small, this method can be sufficiently managed, but it is not sufficient when many kinds of drawings are handled with many companies.

Therefore, in the embodiment of the present invention,
As shown in route 1 in FIG. 2, the server 7 creates a list that records management information (directory name, file name, history information) of the drawing data 14 transmitted from the company system A or the trader system C. Then, the drawing data 14 is stored in the database area 10 classified according to the list. This makes it possible to easily search for where and what kind of drawing data 14 is stored.

As another method, a route 2 shown in FIG.
As shown in the figure, the drawing data 14 received by the server 7 is stored between the server 7 and the database area 10 in the next generation H.
An XML conversion unit 16 for converting the data into XML, which is a data format of TML, is provided.
The L-converted drawing data 14 is stored in the database area 10. Since XML is a data format unified as next-generation HTML, drawing data is converted to XML.
By converting to L and storing, the versatility of the present system utilizing the Internet environment is ensured in the future.

As another method, as shown in route 3 of FIG. 2, a compression means 17 for compressing XML data is further provided between the XML conversion means 16 and the database area 10 shown in route 2, The drawing data 14 subjected to XML conversion by the conversion means 16 is compressed by the compression means 17 and then stored in the database area 10.

As a result, the storage capacity of the database area 10 is used efficiently.

In the case where the drawing data 14 is converted into XML and stored in the database area 10 as in the above-described route 2 and route 3 shown in FIG. A list in which names, file names, and history information) are recorded is created, and the drawing data 14 is stored in the database area 10 in which the drawing data 14 is classified according to the list, thereby facilitating the search.

In the management center side system B, the drawings stored in the database area 10 are stored in the data storage medium 19 which is a secondary medium made of a magnetic tape such as DAT according to the access frequency. However, since the magnetic tape has a life of only about 10 years, it is necessary to update the medium when the life is short. In that case, the microfilm 20 is stored.

Since the microfilm 20 can be managed on a 100-year basis, there is substantially no worry about its life. As a result, it is possible to reduce the operation cost and the medium cost in the medium update.

Next, a method of transmitting and receiving drawing data between the management center system B, the company system A, and the trader system C will be described.

Transmission and reception of drawing data between the management center side system B, the company side system A and the contractor side system C are performed using the XML language. This XLM
The language is defined as an extended language of HTML, and is a language that enables transmission and reception of data having contents that cannot be performed by HTML. The transmission and reception of the drawing data between the management center system B, the company system A and the trader system C can be performed easily and in the future by using the XML language. It is possible to transmit and receive data.

Next, a method for reusing the drawing data managed in the database area 10 will be described.

In the drawing management system according to the present embodiment, when the drawing data managed in the database area 10 is to be reused and provided to the trader, a digital watermarking technique is applied to the drawing data. This prevents unauthorized copying.

The management center side system B can provide software necessary for drawing creation to a trader at a lower cost by cooperating with many software distributors.

The data format of the electronic data depends on the software that created the data. That is, when updating a stored drawing, software for creating the drawing is required. There is no problem if you already own the desired software, but if you do not have it, a company or trader needs to purchase the software, but in the drawing management system according to this embodiment, As described above, software necessary for creating a drawing can be provided to companies or traders at low cost online through the Internet 4 by cooperating with many software distributors.

Note that the transmission path, drawing ordering side,
In the embodiment of the present invention, the drawing order receiving side, the drawing preparing section, and the drawing storing section are the Internet 4, the company side system A,
Contractor system C, computer 1, database area 10
Respectively. The drawing creation specification writing unit and the drawing creation specification display unit described in the claims correspond to the homepage area 9 of the management center side system B in the embodiment of the present invention.

Next, the operation of the drawing management system according to the embodiment of the present invention configured as described above will be described.

The operation of the drawing management system according to the embodiment of the present invention is as follows: 1) registration of drawings; 2) search and browsing of drawings; ) Drawing update is classified into three. Therefore, the operation will be described for each of these classifications.

1) Registration of drawings There are two flow of operations for registering drawings created by a trader, as shown in FIG. 3, and as shown in case a, delivery from the trader to a company via the Internet 4 Then, there are a case where the company confirms the contents of the drawing and then sends it to the management center and saves it in the database area 10, and a case where the company sends it directly to the management center as shown in case b.

In the system C on the trader side, a drawing is created by the optimum software. The created drawing data is transmitted to the case a via the Internet 4.
Is transmitted to the company-side system A as shown in (b) or to the management center-side system B as shown in case (b).

In case a, the contents of the drawing data transmitted from the company system C are confirmed by the company system A and then transmitted from the company system A to the management center system B via the Internet 4. Sent.

The drawing data thus transmitted to the management center side system B is received by the server 7,
Here, a list in which management information (directory name, file name, history information) is recorded is created and then transferred to the database area 10. And database area 1
At 0, it is stored based on this management information. The digital watermarking technique is applied to the drawing data stored in the database area 10 in this way, thereby preventing unauthorized copying.

The drawing data is stored in the database area 1
When stored in 0, the data may be stored after the XML conversion. Further, the data may be further compressed and then stored after the XML conversion.

2) Searching and browsing of drawings The flow of operations when searching and browsing drawings stored in the database area 10 of the management center is shown in FIG.
There are three ways as shown.

Case a is a case where a company retrieves and browses predetermined drawing data from the management center, and case b
The case where the company retrieves the drawing browsed by the trader from the management center and transfers it to the trader, and the case c is the case where the trader directly searches and browses the drawing from the management center.

The drawing data stored in the database area 10 of the management center side system B is stored based on the management information (directory name, file name, history information) stored in the server 7. Therefore, by referring to the contents of the management information using the WWW browser software 5 from the company side system A or the trader side system C, desired drawing data can be easily searched.

The drawing data retrieved in this way is taken into the company system A or the trader system C via the Internet 4. Further, in case b, the drawing data taken in by the company system A is transferred from the company system A to the company system C.

Company system A or trader system C
In WWW browser software 5
Alternatively, the content is viewed using other software.

3) Updating of Drawings There are four flow of operations when reusing and updating drawings stored in the database area 10 of the management center as shown in FIG.

In case a, when the company retrieves and updates a predetermined drawing from the management center and then re-registers it, in case b, the company retrieves the drawing from the management center and transfers it to the trader, and the trader updates the drawing. If the trader re-registers the drawing with the management center directly or through a company, case c is a case where the trader retrieves the drawing from the management center, updates the drawing, and re-registers the drawing with the management center through the company, case d. Is a case where a trader takes out a drawing from the management center, updates the drawing, and re-registers the drawing with the management center after the update.

When reusing and updating the drawing data stored in the database area 10 and re-registering the updated drawing data as described above, first, it is necessary to take out desired drawing data from the database area 10. However, the method of extracting a drawing from the database area 10 is the same as that described in 2) Searching and browsing of a drawing, and a description thereof will not be repeated.

The drawing data taken out from the database area 10 of the management center system B is transferred to the company system A or the trader system C from which the drawing data is taken out.
It is updated by processing or changing work by predetermined software.

If the company system A or the supplier system C for updating the drawing data does not have the software for updating the extracted drawing data, the necessary software is also stored in the management center system. B via Internet 4.

The drawing data updated in this way is
It is stored in the database area 10 of the management center side system B by the same operation as that described in 1) drawing registration described above.

In the drawing management system according to the embodiment of the present invention, as described above, the company side system A, the management center side system B, and the trader side system C are connected to each other via the Internet 4 and Presentation of drawing specification information via the Internet 4 between
By delivering and saving electronic drawing data, and by searching, browsing and reusing saved drawing data, expediting delivery of drawings from contractors, streamlining drawing management, facilitating searches, It is possible to reduce costs by reusing information.

In the case of free information exchange on the Internet 4, there is a concern that information may leak to other places. However, in the drawing management system according to the present invention, by applying the VPN-compatible router 2, high security can be achieved. Realization becomes possible. Further, when the drawing data is stored, since the digital watermark technique is used, illegal copy can be prevented.

The drawing management system is an extended language of HTML, and also supports XLM, which is positioned as a next-generation language. It is possible to easily transmit and receive drawing data and realize a general-purpose drawing data transmitting and receiving environment for the future.

Further, since the management center side system B can obtain software necessary for creating a drawing in cooperation with many software distributors, there are cases where a company or a trader does not have appropriate software. However, it can be provided immediately via the Internet 4.

Measures are taken against the life of the recording medium.
By using the microfilm 20 that can be stored on a yearly basis as a secondary recording medium for backup,
Substantially permanent recording becomes possible.

As described above, the preferred embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to such configurations. Within the scope of the invented technical concept described in the claims, those skilled in the art will be able to conceive various modified examples and modified examples, and these modified examples and modified examples are also within the technical scope of the present invention. It is understood that it belongs to.

[0084]

As described above, according to the present invention,
It is possible to convert drawings that have been conventionally delivered on a paper basis into electronic information, receive the delivery via a network, and manage the delivered drawings as electronic information.

As described above, it is possible to realize a drawing management system capable of speeding up the delivery of drawings from a trader, streamlining drawing management, facilitating retrieval, and reducing costs by reusing electronic information. .

Further, according to the present invention, it is possible to use the Internet as a network, and eliminate the provisions of electronic information to be transmitted and received and restrictions on the contents of expression.

As described above, transmission and reception of electronic information can be easily performed.
In addition, it is possible to realize a drawing management system that can be performed more generally.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an example of the overall configuration of a drawing management system according to an embodiment of the present invention.

FIG. 2 is a diagram showing a flow of data when saving drawing data transmitted from a trader system;

FIG. 3 is a diagram showing a flow of an operation when registering a drawing in the drawing management system according to the embodiment of the present invention;

FIG. 4 is a diagram showing an operation flow when searching and browsing drawings in the drawing management system according to the embodiment of the present invention;

FIG. 5 is a diagram showing an operation flow when updating a drawing in the drawing management system according to the embodiment of the present invention;

[Description of Signs] A: Company side system B: Management center side system C: Contractor side system 1 ... Computer 2 ... VPN compatible router 3, 8, 12 ... LAN 4 ... Internet 5 ... WWW browser software 7 ... Server 9 ... Homepage Area 10 ... Database area 11 ... Dedicated line 14 ... Drawing data 16 ... XML conversion means 17 ... Compression means 19 ... Data storage medium 20 ... Microfilm

Claims (6)

[Claims] 1. A drawing path is connected to a transmission path, receives writing of drawing specification information, which is an instruction from a drawing ordering side, from the drawing ordering side, and authenticates the written drawing specification information by the drawing ordering side. A drawing creation specification writing unit that can be viewed on the received drawing ordering side via the transmission path; and a drawing preparation specification writing unit that is provided on the authenticated drawing ordering side and is connected to the transmission path. A drawing creating unit that browses the written creation specification information via the transmission path, creates a drawing based on the browsed creation specification information, and transmits the drawing data of the created drawing via the transmission path. A drawing management system, comprising: a drawing storage unit that is connected to the transmission path, receives drawing data transmitted from the drawing creation unit via the transmission path, and stores the drawing data. 2. The drawing management system according to claim 1, wherein the drawing ordering side is connected to the transmission path, receives drawing data transmitted from the drawing creation unit via the transmission path, and When it is determined that the drawing based on the drawing data is created based on the creation specification information,
The received drawing data is transmitted through the transmission path, and the drawing storage unit receives the drawing data transmitted from the drawing ordering side through the transmission path and stores the drawing data. Drawing management system. 3. The drawing management system according to claim 1, wherein the drawing storage unit converts the data format of the received drawing data into XML and stores the converted data. And a drawing management system. 4. A WWW server which is connected to the Internet, converts drawing specification information into XML data, transmits the XML data via the Internet, and authenticates a contractor to which the drawing is entrusted. A drawing ordering party, connected to the Internet, receiving the creation specification information transmitted from the drawing ordering side via the Internet, and transmitting the received creation specification information to a trustee authorized by the drawing ordering side. A drawing creation specification display unit comprising a first Web server that can be browsed through the Internet; and a display provided on the authenticated consignee, connected to the Internet and displayed on the drawing creation specification display unit. Browsing the creation specification information via the Internet, creating a drawing based on the browsed creation specification information, A drawing creation unit composed of a WWW server for converting the data format of the drawing created in the above into XML and transmitting the drawing via the Internet; and connecting the drawing data transmitted from the drawing creation unit to the Internet via the Internet. A drawing management unit, comprising: a drawing storage unit comprising a second Web server for receiving and storing the drawing. 5. The drawing management system according to claim 4, wherein the drawing data stored in the drawing storage unit is updated in the drawing creation unit, and the updated drawing data is stored in the drawing storage unit. In the case, if the drawing creation unit does not include software capable of updating the drawing data stored in the drawing storage unit, the drawing storage unit may include:
A drawing management system, wherein software capable of updating the drawing data is provided to the drawing creating unit via the Internet. 6. The drawing management system according to claim 4, wherein the drawing data stored in the drawing storage unit is updated in the drawing creation unit, and the updated drawing data is stored in the drawing storage unit. And storing the updated drawing data with update history information added to the updated drawing data.