Research on PDM/PLM System Effectiveness Evaluation Standard
1. Foreword
With the large-scale adoption of new technologies, the technical state management of weapons and equipment has become more and more complicated, and the original technical state management methods based on paper documents have been unable to meet the needs. In recent years, many national defense scientific research enterprises have actively applied for national technology reform investment to build PDM/PLM systems, and explore ways to use information technology to improve technical state management capabilities. At present, many units have completed construction, and most PDM systems have gradually played an important role in scientific research and production. However, a small number of units of PDM projects have exposed some issues worthy of attention during their implementation and operation. These problems are mainly concentrated in the following aspects. First, the general investment in construction costs is huge. The projects that use foreign products generally cost three or four million. Secondly, the depth of construction, the functions realized by each unit, and the adopted standards are uneven, and communication between systems cannot be realized. Third, the system of individual units only realized the very small amount of functions of PDM and thought that the PDM construction was completed. Fourth, in the face of a large number of failed features, our company's executives are unaware. In the research process, the author even found that there are no product structure management functions in PDM systems, some PDM systems do not have workflow management, and some PDM systems can only manage WORD format files and other serious situations that lack the basic functions of PDM systems.
The emergence of these situations severely restricts the role of the PDM system, leading to doubts about the significance of the promotion of PDM systems. This has a major negative impact on the information construction of national defense scientific research enterprises. The reason for this situation is that the dishonest implementation of the bad manufacturers is not enough to understand the gaps in the PDM system. Only a small number of functions are realized, and the PDM construction is completed. This shows that we lack a set of scientific and effective performance evaluation standards for PDM/PLM systems. To this end, we plan to conduct a research on the performance evaluation technology of PDM system in conjunction with the construction of the product data management system of 206, and prepare a product data management (PDM) system performance evaluation standard. It is convenient for superiors to inspect and evaluate the operational efficiency of each unit's PDM system, and then judge the effect of the technological transformation investment, pointing out the direction for subsequent investment improvement. Eliminate the malicious behavior of bad manufacturers, protect the investment in technological transformation, and make the PDM system really work.
2. Standard structure
This set of standards is not used to vaguely examine the advantages and disadvantages of a certain PDM product in the market, but based on the actual data already in the system, quantitatively evaluate a unit PDM/PLM system from two convenient functions of system function and operation effect. Performance. It consists of a series of easy-to-execute, actionable test questions, each of which includes questions and scoring rules. The test questions will cover the main functions of the PDMPLM system that are widely recognized in the industry, namely e-warehouse, product structure, workflow, configuration, changes, and system integration. Whether project management and cost control are mandatory functions of PDM/PLM, there are still different disputes in the industry, and these controversial function points will not be scored temporarily. Compared with PDM systems, PLM is mainly to increase the management concept of the whole life cycle, that is, to increase the technical state management process of specific product instances during manufacturing and maintenance. We will specially prepare specific test questions for this part, and each unit will choose according to its own situation. The operational aspects will be examined in terms of ease of use, data presentation, authority and real use.
The total score is 110 points, the system function is 90 points, the running effect is 10 points, and the PLM function is 10 points. The key assessments are as follows:
(1). Electronic warehouse and map document management
Investigate whether the electronic warehouse distinguishes organizations by product model, file physical type classification, and file management type classification. Investigate whether the electronic warehouse has the ability to manage standard parts. The ability to manage type data such as text content files (WORD, WPS, etc.), graphic files (AUOTCAD, PROTEL, etc.), 3D models (PR/E, UG), forms (structured data), and simulation data.
3D design is an inevitable trend, which can maximize the real situation and can realistically express the designer's overall geometric concept. Accurate 3D models support strength analysis, motion analysis, assembly interference analysis, machinability analysis, and modeling effects evaluation. However, 3D model management is much more difficult than other types of files, where there are complex association features (association between parts and components, and association between models and drawings). Therefore, the evaluation ability of the 3D model management ability and the correlation ability with the 2D engineering drawing will occupy a large weight.
(2). product structure
Examine the system's ability to describe the structure of the product, which components are used in a component, and which components are used, and which files are closely associated with it. Whether the product structure can be adjusted and whether the adjustment process is controlled. Can you distinguish between the stages of development and testing that a component has undergone?
(3). Workflow
Investigate whether the data objects (such as models, drawings, etc.) managed by them are marked accordingly to identify the life cycle state in which they are located, and to determine the scope of use and permissions of the data based on this. Investigate whether there is a workflow to send data objects such as models and drawings to the desktop of the designated employee, and the employee will review, comment and circle. The system adjusts the data object (file, drawing) life cycle status based on the review results.
(4). Configuration
Investigate the ability of PDM system to reuse and combine products, and investigate whether it can use the existing effective design data to flexibly and quickly configure the combination to meet the needs of users, and achieve the goal of reducing costs, shortening schedule and improving quality.
(5). change
Investigate whether the system has passed the prescribed review and approval process during the execution of the change; whether to notify the user of the changed file and the preparation and user of the associated document of the change notice describing the change details; and whether the final change of the implementation result can be enforced Change the description of the notification; can you query and understand the changes of the electronic file; the index attribute of the electronic file should be consistent with the change of the text; and the previously exported paper file and the changed electronic file can No consistency.
(5). system integration
Investigate the integration capabilities of PDM systems and services (CPC/ERP/MES, etc.) systems, other PDM systems, and various editing tools. For example, PDM is one of the enterprise application systems. It should not establish independent identity authentication functions, but should integrate with the enterprise unified authentication mechanism to effectively ensure the transmission of user information between application systems. The PDM system should integrate operation menus in various editing tools (PRO/E, WORD, etc.) for the convenience of employees. The PDM system should establish an integrated interface with other application systems (process, materials, other PDM) to achieve data transfer; the PDM system should have the ability to synchronize with the underlying data (components, suppliers, departments) to maintain data consistency.
(6) Operation effect
Investigate the actual operation effect of the PDM system, determine whether the PDM system is actually used, and whether to maintain a certain number of logins per day for a long time. Investigate whether the PDM system is authoritative, and whether paper documents are inconsistent, whether it is based on electronic documents. Whether to issue electronic documents directly to the use department or personnel. Also check whether the system is safe, there must be corresponding authority control, virus prevention and regular backup mechanism. Whether the system is easy to use, can display product data according to the requirements of the data use department such as process, material, production and quality.
(7). PLM function
The main difference between PLM and PDM is the ability to manage lifecycle. PDM mainly covers the design phase. The data it manages is based on the manufacturing lot. The design data is the same regardless of the number of products in each batch. . PLM covers the entire life cycle of a product. There are differences in each product during manufacturing and maintenance. Repair, commissioning, and quality data will vary. System management data is based on the number of units, and the amount of data will be much larger.
3. Standard evaluation section and evaluation results of 206 systems
Next page
Mini Dry Claw vacuum pump,Lab Vacuum Pump,Claw Vacuum Pump,Screw Vacuum Pump
Shandong Newels International Co., Ltd , https://www.newelsindustrial.com