About Data Management in Pro/ENGINEER

Pro Engineer - Comments Off - Posted on January, 21 at 10:06 pm

About Data Management in Pro/ENGINEER
Pro/ENGINEER seamlessly integrates with the product data management (PDM) operations in all Windchill applications and Pro/INTRALINK. With integrated PDM functionality you can manage and control your product data within Pro/ENGINEER.
What Is Product Data Management?
The product design process generates a tremendous amount of data. To reduce a product’s time-to-market, data needs to be shared so that multiple designers can work on a single product. In such an environment, it is difficult to maintain control of your data while distributing it to the users who need it. Without the ability to control your data, you may find multiple designers each using different variations of the same data, which can result in overlapping or inconsistent designs.
Pro/ENGINEER’s access to PDM software allows you to control your data and to take advantage of a concurrent engineering environment. To accomplish this, the PDM system keeps all of your data on a central server. Within this server, all changes to your data are monitored, controlled, and recorded.
PDM Server
The PDM server is the vault where your product data is stored and managed. The PDM server represents your underlying Windchill, Pro/INTRALINK PDM, or Windchill ProductPoint system. For users who are familiar with Windchill, the PDM server represents your collection of cabinets. For users who are familiar with Pro/INTRALINK, the PDM server represents the Commonspace browser.
Windchill ProductPoint is a Pro/ENGINEER data management solution for small design teams. It provides the flexibility that is comparable to managing Pro/ENGINEER data on a file system.
Checkout and Checkin
By default, the PDM system allows designers to download the latest version of a product design from the server. In order to modify a design a user must “check out” the design and copy all of its dependent objects from the server. The process of checking out communicates the user’s intention to modify a design to the server. While the design is checked-out, only the user who checked out the design can modify it. All other users are only permitted to download a read-only version of the design. Thus the integrity of your data is maintained. When you are finished modifying a design and you want to share the modification with other users, you must perform a check-in operation. The check-in process signs, dates, and stores the object on the PDM server alongside the old data.

1 PDM Server
2 Workspace
3 Local Cache on Hard Disk
The PDM system provides an interface called the Workspace for communicating between the PDM server and a Pro/ENGINEER session. The Workspace is a private area where you can track and change multiple objects and perform basic PDM operations. The Workspace is presented in a table format, each row of the table represents an object that you have either downloaded or checked-out while each column represents the object’s attributes. Each column can be sorted or filtered independently which allows you to organize objects in your Workspace by attributes.
The PDM system can create multiple workspaces. This ability is useful if you are working on several projects at one time. It allows you to create a workspace for each of your projects and segregate your design data by project affiliation.
A Windchill ProductPoint server does not use a workspace.
Typically you will use the Workspace to check out design information from the PDM server and to check-in modified designs. However, the Workspace will also allow you to:
? Perform basic PDM operations such as Upload, Check In, Download and Check Out
? Display and sort active objects that you have either downloaded or checked-out.
? Configure the display of new, downloaded, or checked-out objects.
? The objects are displayed in a tabular format:
? Each row represents an object.
? Each column represents an attribute of the object.
? Each column can be sorted independently.

The PDM system tracks and stores every modification that you make to an object. Every time you check in a modified object, the PDM system stores that object as a new iteration of the original. Additionally the PDM system allows you to generate detail reports with which you can review every design modification made to an object. An object version can contain many iterations.
A version identifies the revision and iteration of the part (for example, A.1).
CAD Document
In Windchill, a document is an object containing files in application format. A CAD document is an object containing a CAD model, which is a file or a set of files containing information in an application format. A document typically has attributes and nonstructured content that are relevant to the external application only.
CAD documents:
? Store CAD-generated files (for example, 3D models, drawings, viewable images)
? Can be related to parts so that a CAD document can describe the associated part
? Can be related to other CAD documents to allow representation of the complex dependencies created and maintained by the authoring CAD system (for example, model-to-model, model-to-drawing relationships)

In Windchill, a part is the main object that represents a component or a logical group of components of your product. Typically a part represents a collection of CAD documents or a manufacturing operation that requires management.
An upload transfers Pro/ENGINEER files and any other dependencies from your local working directory to the PDM sever. If the Pro/ENGINEER file is new, the upload process automatically creates a new CAD document on the PDM server and places a checked-out copy in the active workspace.
An upload is used:
? To create a new CAD document on the PDM server for an existing Pro/ENGINEER file and to transfer Pro/ENGINEER files from your local file system to your personal cabinet on the Windchill server.
? To securely store modified CAD files that have not been checked in to the PDM server.

A download transfers the contents of an object from the PDM server to your active workspace as a read-only object. If an object is checked out by another user, you can use theDownload command to add the object to your workspace for reference purposes only. Because downloaded objects are read-only, you should not modify them because you will not be able to check in these objects.
Objects that are downloaded to your workspace and not checked-out can become out-of-date if changes to the object have occurred on the PDM server. When this occurs, you must synchronize the design data in your workspace with the design data on your PDM server. This process is called an update.

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