JPH09265491A - Cooperative design supporting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooperative design supporting system capable of quickly and suitably solving mismatching generated between design result data by respective designers in charge in distributed cooperative design to be executed by plural designers using respective design terminals. SOLUTION: The system is constituted so as to connect plural design terminals 1 through a network and allow the terminals 1 to share data stored and managed by a connection model 4. In this case, a matching managing means 5 detects design mismatching generated between plural design data stored in the model 4 and a mismatching analyzing means 6 specifies the design data of the opposite side to the design data of which mismatching is detected from the model 4. The specified opposite side design data are stored in a shared working area 7 so as to be accessed from respective design terminals 1 and a matching adjusting means 8 acquires the opposite side design data from the area 7 and displays the opposite side design result on the screen of its own design terminal 1. Thereby a designer in charge can grasp and confirm an opposite side design drawing or the like generating mismatching and can solve the mismatching by suitably and quickly changing the design.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for supporting distributed collaborative design performed by a plurality of design personnel using respective design terminal devices, and in particular, a mismatch generated between design result data by the respective personnel. The present invention relates to a collaborative design support system that quickly and appropriately eliminates the problem.

[0002]

2. Description of the Related Art Conventionally, information devices (computers) having a function of communicating with each other are connected to each other through a network, and a design application such as CAD (hereinafter referred to as a design tool) is connected to these information devices. There is known a collaborative design system that is installed as design terminal devices, and a plurality of design personnel operate each of the design terminal devices to enable distributed collaborative design while exchanging design data. In such a collaborative design system, the same design target is divided into a plurality of parts, and a plurality of designers design the divided parts by using respective design terminal devices (design tools), and the individual design One design is made by combining the results.

In such a co-design system, there is a possibility that a design mismatch such as a mismatch in the position and size of parts may occur between the design drawings designed by the designers. It is necessary to proceed with the design while checking whether such inconsistency has occurred. When such inconsistency is discovered, each design engineer is forced to make a design change, and must spend extra effort and time. Also, in order to ensure consistency between design drawings as early as possible, design work must be interrupted at certain intervals during the design process to check consistency, which impedes the continuous creation of designers. There was also the problem of doing.

As a proposal for preventing the occurrence of such inconsistency, Japanese Patent Laid-Open No. 12354/1993 discloses in advance a constraint condition, a related rule, and a function group necessary for evaluation among a plurality of distributed design tools. In the registered state, when design parameters are changed in a specific design tool, all related parameters are linked and corrected, and side effects are grasped. If no design solution within the constraints can be found, design constraints are relaxed and reviewed. There is described a system that collaborates among a plurality of design tools to check whether or not there is a contradiction in the design between design tools and to coordinate the design work.

[0005]

However, in the above-mentioned proposal, in order to eliminate the inconsistency between the design drawings, all the related parameters are corrected in conjunction with the change of some design parameters. However, for this purpose, all constraints, related rules, and function groups necessary for evaluation must be registered in advance, and if there are unregistered constraints and related rules, inconsistency is required. There was a problem that it could not be resolved and consistency could not be realized. That is, in view of the actual collaborative design work, it is extremely difficult to extract and register all the constraints peculiar to the design target each time, and it is difficult to realize the elimination of the mismatch as a reality.

The results obtained by the interlocking correction are
It strictly satisfies the constraint condition, and there is no guarantee that it meets the designer's design intention, and the designer may need to make another adjustment. Further, there is a problem in that the interlocking modification of parameters is not efficient because the modification causes further modification, the design tools communicate with each other, and it is difficult to converge, or deadlock due to conflicting conditions occurs. The present invention has been made in view of the above conventional circumstances, and eliminates inconsistencies in design drawings that occur during distributed collaborative design, reflecting the intentions of both design personnel, and solving unpredictable problems. Also aims to provide a collaborative design support system that enables appropriate measures each time. Another object of the present invention is to provide a collaborative design support system capable of reducing detailed preliminary meetings and registration work of constraint conditions and related rules unique to a design target.

In order to achieve the above object, the collaborative design support system according to the present invention connects a plurality of design terminal devices each having a communication function via a network, and stores and manages data in a design database. In the collaborative design support system in which the plurality of design terminal devices share the design data, the matching management means detects a design mismatch between a plurality of design data stored in the design database, and the design data in which the mismatch is detected. The inconsistency analysis means identifies the other party's design data from the design database. Then, the specified counterpart design data is held in the supply memory means so as to be accessible from each design terminal device,
The matching adjustment means acquires the counterpart design data from the shared memory means and displays the design result of the counterpart based on the data on the screen of its own design terminal device. As a result, the designer in charge of operating the design terminal device can grasp and confirm the design drawing or the like of the other party in which the inconsistency has occurred, and can appropriately and swiftly change the design to eliminate the inconsistency.

Further, in the collaborative design support system according to the present invention, the design data stored in the design database includes the designer information in charge of the design data, and the inconsistency analysis unit detects the inconsistency. The person in charge of the other party's design data is identified from the design database together with the design data of the other party for the specified design data, and the matching management unit performs the design operated by the identified person in charge of the other party based on the request from the design terminal device. The terminal device is made to access the shared memory means. As a result, both design personnel who operate the design terminal device can grasp and confirm the design drawings, etc. of the other party in which the inconsistency has occurred, and cooperate with each other to make appropriate and speedy design changes to eliminate the inconsistency. It can be resolved.

Further, in the collaborative design support system according to the present invention, the corresponding design data held in the shared memory means is changed in synchronization with the change of the design data by the design terminal device, and is displayed on the screen of the partner design terminal device. Indicates the design result based on the changed design data. As a result, the design results of the design change are immediately displayed on the screens of both design terminal devices, and both design personnel can quickly grasp and confirm the other party's design drawings, etc. In addition, the inconsistency can be resolved quickly.

That is, in the collaborative design support system according to the present invention, when an input from a certain design terminal device (design tool) causes inconsistency with a portion already designed on the design result database, consistency management is performed. The department detects this, notifies the design engineer that a conflict has occurred, the inconsistency analysis unit identifies the inconsistent part and the designer in charge, presents the conflict range of both parties to the shared memory means, and It is possible to refer. Each design engineer refers to the shared memory means through the matching adjustment unit, and both design engineers confirm the change of the other party and then change the design drawing, thereby reflecting the design intention of both parties. It is possible to eliminate inconsistencies.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A collaborative design support system according to an embodiment of the present invention will be described with reference to the drawings. The collaborative design system of the present embodiment has an overall configuration as shown in FIG. 1, and connects a plurality of design terminal devices in which the design tool 1 is installed to the network N and also connects a model server 3 which constitutes a design database. Then, it is configured as a network distributed collaborative design system.
A matching adjustment support unit 2 is provided in each design terminal device, and a design tool (that is, a functional unit that manages design processing) 1 is connected to the network N via the matching adjustment support unit 2. Note that each design terminal device is provided with a display for displaying and outputting drawings of design results, and each design person performs design work while checking the display display, and the display due to inconsistency described later is also concerned. Displayed on the display screen.

That is, in the collaborative design system having the above-mentioned configuration, each person in charge of design carries out a design assigned to each person using the respective design tools 1, and the design results (that is, design data) are passed through the network N. It is sent to the model server 3 and stored / managed. In this embodiment, each design terminal device has a design tool 1 and a matching adjustment support unit 2.
However, the design tool may be installed in each design terminal device, and the matching adjustment support unit may be connected to the network N as a separate device.

FIG. 2 shows the internal structure of the model server 3 and the matching adjustment support unit 2. Model server 3
Matches the integrated model 4 as a design database that stores and manages the design data from each design tool 1, the geometrical interference between the design data stored in the integrated model 4 and the setting of parameters outside the allowable range. A consistency management unit 5 that performs a check, a mismatch analysis unit 6 that identifies a design site and a designer who are related to each other when a mismatch occurs and extracts a mismatch status, and data is shared between a plurality of design tools 1. A shared work area 7 as a shared memory that can refer to the same data content, and a communication interface 9a for performing communication processing between each design tool 1 and the network N.
And Here, as will be described later with reference to FIG. 3, the design data stored in the integrated model 4 includes drawing data representing the entire design target by integrating design results from the design tools 1 and individual drawing data. And the attribute data of the designer in charge, etc., and the integrated model 4 stores and manages the design result over the entire design object together with the person in charge and the like.

Further, each matching adjustment support unit 2 does not match the communication interface 9b for performing communication processing between the other design tool 1 and the model server 3 via the network N, and the display screen of the design tool 1. A matching adjustment unit 8 that supports adjustment for elimination. As will be described later, the matching adjustment unit 8 refers to the shared work area 7 when a mismatch occurs, and presents the design drawing of the partner and the mismatched portion to both design tools 1 having a mismatch relationship, Support adjustment for eliminating inconsistencies through the screen of the design tool.

Integrated model 4 of the model server 3 described above
Holds a data structure as shown in FIG. 3, and the coordinate position in the entire integrated model of the component (that is, the entire design target) is stored in the component, and each component is the component in each component. Holds the coordinate position of. In addition, the configuration unit indicates one design range in which the design target is divided and assigned to each designer, and the component is the minimum design unit placed on each configuration unit and registered in the system as a component. What is done. Further, each of the components and the parts holds its own three-dimensional geometrical shape data, designer information in charge, and attributes such as connection relations with other parts.

In the integrated model 4, at the early stage of designing, the external dimensions and positional relationship of each component divided in order to assign the design object to each person in charge of design, the connection site between the components, the connection shape, etc. When the design work is started and the design data is sent from each design tool 1 while holding the constraints based on the required specifications, only the design data that satisfies the consistency is additionally stored, and as a result, the contradiction No design result is built on the integrated model 4. In this way, in the design data of the component sent from each design tool 1, the position and shape are expressed in the coordinate system on the constituent part designed in each design tool 1.

The matching management unit 5 compares the input design data with the existing design data on the integrated model 4,
These are coordinate-converted into the same coordinate system to check whether there is any geometrical interference or collision, and whether there is any mismatch due to such interference or the like. Also, if the part represented by the input design data has a contact with another part,
The matching management unit 5 checks the connection condition from the position and shape of the connecting surface between the parts, checks the shape of the joint surface and the position of the screw hole, and confirms the positional deviation and the size mismatch. The matching check by the matching management unit 5 is performed according to the processing procedure described later with reference to FIG.

When the inconsistency management unit 5 finds an inconsistency, the inconsistency analysis unit 6 extracts the design data of the inconsistent component from the integrated model 4 and holds it in the shared work area 7. Further, the person in charge of designing the component is checked and the occurrence of inconsistency is notified to the design tool 1 operated by the person in charge through the communication interface 9a.
That is, according to the notification from the mismatch analysis unit 6, the matching adjustment support unit 2 of the own design tool 1 refers to the shared work area 7 to display the design result of the other party having the mismatch relationship on its own display screen. You can check and confirm.

As shown in FIG. 4, the above-mentioned shared work area 7 stores design data of components and parts in which a mismatch has occurred, and each matching adjustment support unit 2 accesses this design data. By displaying the design result of the other side on the screen of the design tool 1, both design personnel make design changes while confirming the design data of the other side, and the changed result is immediately converted into the design data of the shared work area 7. Can be reflected. By such a design change, the inconsistency is eliminated, and the design data approved by both designers is subjected to the consistency check by the consistency management unit 5 again and registered in the integrated model 4 after the consistency is confirmed. To be done. As a result, the integrated model 4 can be reliably maintained without being affected by the adjustment process on the shared work area 7.

The alignment adjustment support unit 2 refers to the design data held in the shared work area 7 and displays the parts that are inconsistent with the other component on the screen of the design tool 1. On the screens of both design tools 1, the design drawing of the other party is displayed together with its own design drawing, and each designing person views the screen display and makes a design change for eliminating the inconsistency. In addition, the matching adjustment support unit 2 immediately reflects the changes made by each designer in the design data in the shared work area 7, whereby both designers quickly confirm the design change process. be able to.

Next, the processing by the collaborative design support system having the above configuration will be described. First, the processing performed by the matching adjustment support unit 2 will be described with reference to the flowchart shown in FIG. When the designer in charge designs using the design tool 1, the input design data is sent to the model server 3 via the communication interface 9b (steps S1 and S).
2). As will be described later, the model server 3 detects inconsistency between the design data and the existing design data, and notifies the matching adjustment support unit 2 of the result (step S3).

If this notification does not cause inconsistency,
The model server 3 additionally stores the input design data in the integrated model 4, and the matching adjustment support unit 2 allows the designer to use the design tool 1 to perform the next design. On the other hand, if this notification indicates that an inconsistency has occurred, the alignment adjustment support unit 2 refers to the design data presented by the model server 3 in the shared work area 7 and has the inconsistent portion, and then the own design tool The location of the inconsistency with the drawing of the other party is displayed on the first screen (step S4). For example, as shown in FIG. 6, a window g1 is opened on the screen G1 of the own design tool 1, and together with the own designing part B displayed on the screen G1, the designing partner of the other party who is inconsistent. The part A is displayed in the window g1.

When the designer in charge makes a design change to eliminate the inconsistency based on the above screen display (step S5), this design data is sent to the model server 3 and the above process is repeated. Performed (step S
1). On the other hand, when the design engineer cannot eliminate the inconsistency within his / her own design range, if the design engineer inputs a request for matching adjustment to the model server 3 by the design tool 1 (step S6), the model server 3 , The design data having the inconsistent relationship and the design personnel information of the data are extracted from the integrated model 4 and stored in the shared work area 7, and further, the matching adjustment support unit 2 of the design tool 1 operated by the design personnel. To notify the start of adjustment.

Upon receiving this notification, the matching adjustment support unit 2 accesses the shared work area 7 and displays the design result of the partner based on the design data of the partner on the screen of the design tool 1 (step S7). While confirming the design state of each other, the person is allowed to change the design of the other person to make a design change for eliminating the inconsistency (step S8). That is,
As shown in FIG. 7, the window g2 is also opened on the screen G2 of the design tool 1 of the other party, and the designing part A displayed on the screen G2 and the designing part B of the other party inconsistent are displayed. It is displayed in the window g2. In addition,
When the designer changes the design of the inconsistent portion, the input change data is directly written in the drawing of the shared work area 7, and the display of the screen of the inconsistent portion of both design tools 1 is immediately updated. Then, the inconsistency is resolved by the design change, and when both design engineers confirm that the inconsistency is resolved, the adjustment adjustment process ends (step S9), and the end notice is sent together with the design data of the design change. (Step S10), the design data is registered in the integrated model 4 after the consistency check.

Next, the processing performed by the model server 3 will be described with reference to the flow charts shown in FIGS. Design tool 1 via communication interface 9a
Upon receiving the design data from (step S11), the matching management unit 5 checks whether the input design data satisfies the matching on the design drawing with other design data already held in the integrated model 4 ( Step S1
2). It should be noted that this consistency check is performed by placing the input design data of the parts in the same coordinate system as the existing design data on the integrated model 4, as will be described later with reference to FIG. Judgment is made by checking connection conditions such as geometrical interference due to, connection surface deviation, and shape difference.

As a result, if there is no inconsistency, the data input to the integrated model 4 is registered and the processing is terminated (steps S13 and S14), while if there is an inconsistency, the design data is concerned. The design tool 1 that has input is notified of the occurrence of the inconsistency to notify the design person in charge, and the design data of the counterpart component part in which the inconsistency occurs in the design tool 1 is sent (steps S13 and S15). If there is no request for matching adjustment after this notification and the designer in charge inputs new design data for the same part, there is no need for matching adjustment and the designer changes the design to achieve matching. If it is determined that it has failed, the process is terminated (step S16).

On the other hand, when a matching adjustment is requested from the design tool 1, the mismatch analysis unit 6 refers to the data of the component in the integrated model 4 where the mismatch has occurred, and takes charge of each component. Of the designers are identified (step S17), and the design tool 1 operated by these designers is notified that the matching adjustment is started (step S1).
8). Then, the inconsistency analysis unit 6 secures an adjustment area in the shared work area 7 (step S19), and extracts the design data of the component and the part in which the inconsistency has occurred from the integrated model 4 (step S20). Is stored in the secured shared work area 7 (step S21). A design drawing based on this design data is displayed on the screen of the design tool 1 by both matching adjustment units 8 as shown in FIG. 6 and FIG. 7, and each design person confirms each drawing on this screen. While making design changes, share the results of the design changes in the work area 7
To reflect.

As a result of the design change work, when both the design tools 1 (that is, the persons in charge of design) receive notification of the end of the matching adjustment (step S22), the mismatch analysis unit 6 releases the shared work area 7. The process ends (step S2)
3). It should be noted that, after this processing is completed, the design data whose inconsistency has been resolved by both designers is registered in the integrated model 4, and by performing such processing, the design that satisfies the consistency in the integrated model 4 is registered. The data is built.

Here, the above-described consistency check processing (step S12) is performed by the consistency management unit 5 according to the procedure shown in FIG. First, the input design data of the part is placed in the same coordinate system as the existing design data on the integrated model 4 (step S31), and geometrical interference due to the overlapping of arrangement positions is checked (step S32), and the interference occurs. It is determined whether or not (step S33). As a result, if no interference has occurred, the attribute data of the component design data is checked (step S34), and it is determined whether or not there is a connection relationship with another component (step S35).

If the result of this determination is that no interference has occurred and the connection relationship with other other components is also within, there is no inconsistency and the processing ends. On the other hand, if no interference has occurred, but there is a connection relationship with another component, the attribute data of the other component is checked (step S3).
6) It is determined whether or not the connection condition is satisfied (step S37), and when the connection condition is satisfied, it is determined that there is consistency without a displacement of the connection surface or a difference in shape, and the processing ends. To do. On the other hand, if interference has occurred due to the above determination (step S33), or
If no interference has occurred but the connection conditions have not been met (step S37), it is determined that an inconsistency has occurred and the processing ends (step S38).

Next, as shown in FIG. 10, the collaborative design work using the collaborative design support system of this embodiment is composed of two constituent parts A and B, and the constituent part A is incorporated into the constituent part B. The design of the device that is fixed by screwing and becomes one will be described as an example. The component A and the component B are designed by different designers on different design tools 1. These designers are composed of component A,
B is designed based on the required specifications, and there are restrictions on external dimensions, interfaces with other components, connection parts for fixing, etc., but we do not have information on other components, and internal parts The design and layout will be left to each person in charge of design. That is, these designers select the parts to be used so as to satisfy the given required specifications and constraints, arrange them in each constituent part, and determine the processed shape of the constituent parts accordingly. The processed shape of the component is also input with data such as surface roughness and drilling dimension. The shape and specifications of the parts to be used are also input, and these figure data and attribute data are sent together to the model server 3. , Is registered in the integrated model 4 after checking the consistency.

These designers are respectively shown in FIGS.
As shown in FIG. 2, the component a is arranged in the constituent parts A and B. In this design process, one of the designers judges that the screw holes for connecting the constituent parts cannot be machined at the initially planned positions due to the arrangement of the parts in the constituent parts B, and the positions of the screw holes are determined. Suppose you have changed. When this design data is sent to the model server 3, the matching management unit 5 refers to the design data of the constituent unit B on the integrated model 4, and confirms whether there is a collision with other parts based on the position information and the geometric information. Check the consistency between the design data of the screw hole and the existing design data such as whether the connection condition with other parts is satisfied from the attribute information. To check this connection condition, the other part and its surface are indexed from the connection part and the connection surface of the attribute information, placed in the same coordinate system by coordinate conversion, interference between parts, surface deviation,
Verify inconsistencies in machining shapes.

As a result, when the displacement of the component A from the screw hole portion is detected, the mismatch analysis unit 6 extracts the design data of the components A and B including the mismatch occurrence site from the integrated model 4, and Then, the design data in which the inconsistency is generated is added to the shared work area 7 and presented to the common work area 7 to notify the designer in charge of the inconsistency. As shown in FIG. 4, the design data including the inconsistency occurrence site is presented in the shared work area 7, and the inconsistency adjustment support unit 2 causes the inconsistency to appear on the screen of the design tool 1 of one of the designers. The alignment adjustment screen that displays the drawing of the component A that is the counterpart of the above and the screw hole portion that is the mismatched portion opens, and as shown in FIG. It is displayed and can be easily visually confirmed by the designer.

If the person in charge of designing on the one side cannot solve this inconsistency by changing his / her own design, and requests the model server 3 for matching adjustment support, the requested model server 3 The start of the adjustment adjustment is notified to the adjustment adjustment support unit 2 of the person in charge of designing the component A (that is, the other person in charge of design). Matching adjustment support section 2 of the person in charge of design
Is a component B which is a partner of inconsistency with the screen of the design tool 1.
Open the alignment adjustment screen that displays the screw hole part that is inconsistent with the drawing of Fig. 7, and as shown in Fig. 7, the component and its position that caused the inconsistency on the screen of the design tool 1 of the other designer. Display deviations and differences in shape. Then, the result of the design change made by both designers while eliminating the inconsistency that occurred while viewing the respective screen displays is immediately displayed on the screen of the other party via the shared work area 7, and the change of the other party is performed. The design change work is performed while confirming. In addition, both design personnel consider the undesigned part of their own design range when making design changes, and make design changes while reflecting their own intentions so as not to affect other design parts. be able to.

After such a design change by both designers, the inconsistent portion is eliminated from the matching adjustment screen of the design tool 1, and both parties accept the changed contents and the matching adjustment ends. Then, after the adjustment processing is completed, the design data of the changed portion is sent from the respective design tools 1 to the model server 3, and is registered in the integrated model 4 after the consistency check. Then, the inconsistency analysis unit 6, which has confirmed the elimination of the inconsistency, notifies both the alignment adjustment support units 2 of the end of the adjustment adjustment, and releases the shared work area 7. In addition, the matching adjustment support unit 2 closes the matching adjusting screen, and both designers continue to carry out their design work.

That is, by performing the series of processes described above, in a distributed collaborative design in which a plurality of designers collaboratively design the same target through interaction with a computer (design terminal device), conflicts and inconsistencies that have occurred. Can be solved while reflecting the intention of the designer, and efficient design can be performed consistently.

[0037]

As described above, according to the collaborative design support system of the present invention, when a mismatch occurs in collaborative design work using a network distributed information system,
Since the designers can collaborate on design changes while confirming mutually inconsistent points, the inconsistencies can be resolved while reflecting the design intent of both parties, and the productivity of design work can be improved. . In addition, by eliminating detailed meetings in advance and registration of constraint conditions and related rules, even when unpredictable inconsistencies occur, the inconsistencies can be resolved by the minimum necessary exchanges between the designers. It is possible to prevent later corrections and changes, and allow individual designers to focus on their own work.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a collaborative design support system according to an embodiment of the present invention.

FIG. 2 is a diagram showing configurations of a model server and a matching adjustment support unit.

FIG. 3 is a diagram showing an example of a data structure stored in an integrated model.

FIG. 4 is a diagram showing an example of a data structure held in a shared work area.

FIG. 5 is a flowchart showing a processing procedure of a matching adjustment support unit.

FIG. 6 is a diagram showing an example of a display screen of one design tool.

FIG. 7 is a diagram showing an example of a display screen of the other design tool.

FIG. 8 is a flowchart showing a processing procedure of a model server.

FIG. 9 is a flowchart showing a processing procedure of the matching management unit.

FIG. 10 is an external perspective view showing an example of a device to be designed.

FIG. 11 is a diagram showing one component of the device to be designed in plan view and side view.

FIG. 12 is a plan view and a side view of the other component of the device to be designed.

[Explanation of symbols]

1 ... Design tool (design terminal device), 2 ... Design adjustment support unit, 3 ... Model server, 4 ... Integrated model (design database), 5 ... Matching management unit,
6 ... Mismatch analysis unit, 7 ... Shared work area (shared memory means), 8 ... Matching adjustment unit, 9a, 9b ...
Communication interface, N ... Network,

Claims (3)

[Claims] 1. A plurality of design terminal devices each having a communication function are connected via a network so that data stored and managed in a design database can be shared by the plurality of design terminal devices, and the plurality of design terminal devices can be shared. In a collaborative design support system that collaborates with terminal devices to perform design, a matching management unit that detects design mismatches that occur between multiple design data stored in the design database, and design data that has detected mismatches. Inconsistency analysis means for identifying the other party's design data from the design database, supply memory means for holding the identified other party design data accessible from each design terminal device, and the other party design data from the shared memory means. Display the design result of the other party based on the data on the screen of the user's own design terminal device Cooperative design support system comprising the and. 2. The collaborative design support system according to claim 1, wherein the design data stored in the design database includes information on a designer who is in charge of the design data, and the inconsistency analysis unit detects inconsistencies. The person in charge of the other party's design data is identified from the design database together with the design data of the other party to the detected design data, and the matching management unit is operated by the identified person in charge of the other party based on the request from the design terminal device. A collaborative design support system characterized in that a designing terminal device for controlling the shared memory means is accessed. 3. The collaborative design support system according to claim 2, wherein the corresponding design data held in the shared memory means is changed in synchronization with the change of the design data by the design terminal device,
A collaborative design support system characterized in that a design result based on the changed design data is displayed on the screen of the design terminal device of the other party.