Civil Rights
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In 1968 Shirley Chisholm became the first Black woman elected to the United States Congress. In 1972 she launched a campaign for the Democratic presidential nomination, breaking another political barrier.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
Collaborative product development (collaborative product design) (CPD) is a business strategy, work process and collection of software applications that facilitates different organizations to work together on the development of a product. It is also known as collaborative product definition management (cPDM).[citation needed]
Collaborative product development helps individual users and companies manage, share and view your CAD projects without the cost and complexity of purchasing an entire PDM or PLM solution. CPD comes in the form of a software as a service delivery model, which allows for rapid iterations and little or no downloads and installs.
Exactly what technology comes under this title does vary depending on whom one asks; however, it usually consists of the product lifecycle management (PLM) areas of: product data management (PDM); product visualization; team collaboration and conferencing tools; and supplier sourcing software. It is generally accepted as not including CAD geometry tools, but does include data translation technology.[citation needed]
Clearly general collaborative software such as email and chat (instant messaging) is used within the CPD process. One important technology is application and desktop sharing, allowing one person to view what another person is doing on a remote machine. For CAD and product visualization applications an ‘appshare’ product that supports OpenGL graphics is required. Another common application is Data sharing via Web based portals.
With product data an important addition is the handling of high volumes of geometry and metadata. Exactly what techniques and technology is required depends on the level of collaboration being carried out and the commonality (or lack thereof) of the partner sites’ systems.
Collaboration using PLM and CAx tools requires technology to support the needs of:
Appropriate technologies are required to support collaboration across these boundaries.
People
Effective PLM collaboration will typically require the participation of people who do not have high level CAD skills. This requires improved user interfaces including tailorable user interfaces that can be tailored to the skill level and specialty of the user.

Improved visualization capabilities, especially those that provide a meaningful view of complex information such as the results of a fluid flow analysis will leverage the value of all participants in the collaboration process. Effective collaboration requires that a participant be freed from the burden of knowing the intent history typically imbedded within and constricting the use of parametric models.
Organizations
Community collaboration requires that companies, suppliers, and customers share information in a secure environment, ensure compliance with enterprise and regulatory rules and enforce the process management rules of the community as well as the individual organizations.
Data
The most basic collaboration data need is the ability to operate in a MultiCAD environment. That is, however, only the beginning. Models from multiple CAD sources must be assembled into an active digital mockup allowing change and/or design in context.
Product design is typically a highly iterative and interactive activity involving a group of designers who are geographically dispersed. A neutral modeling commands (NMC) based method is proposed to construct a real-time collaborative product design platform within heterogeneous CAD systems.[1] Different from the visualization-based approaches, models can be constructed and modified synchronously from various sites in the proposed collaborative design environment. Based on a translation mechanism between system modeling operations (SMO) and neutral modeling commands (NMC), every operation given by a user on one site will be translated into a NMC and be sent to all the other sites through the network. When the other sites receive this command, it is converted into corresponding SMOs on the local system. In this way, the real-time collaborative product design with heterogeneous CAD systems is achieved.
If the collaborating parties have the same PDM and CAD systems the task usually involves the direct access and transfer of data between sites. The PDM system will have data storage at more than one site for the large graphics files, file may be copied between sites, how they are synchronized being controlled by the server(s). For the management server and metadata there are a number of options. There could be a single server that is accessed from all locations or multiple PDM servers that communicate with one another. In both cases the PDM software controls access for groups defining what data they can see and edit.
With different CAD systems the approach varies slightly depending on whether the ownership, and therefore authorship, of components changes or not. If geometry only has to be viewed then a product visualization neutral file format (e.g. JT) can be used for tasks such as viewing, markup (redlining) or multi-cad digital mock-up (DMU). It maybe that authorship does not change but components from one group needs to be placed in the assembly of another group so that they can construct their parts, so called work in context. This requires transfer of geometry from one format to another by means of a visualization format or full data translation. Between some systems there is the possibility of ‘data interoperability’ where geometry from one format can be associatively copied to another. If the ownership of a particular file is being transfer, then full data translation is required using some form of CAD data exchange technology. For the translation process product data quality (PDQ) checkers are often employed to reduce problems in transferring the work. If different PDM/EDM systems are in use, then either data structures or metadata can be transferred using STEP or communication between databases can be achieved with tools based around XML data transfer.
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Collaborative product development (collaborative product design) (CPD) is a business strategy, work process and collection of software applications that facilitates different organizations to work together on the development of a product. It is also known as collaborative product definition management (cPDM).
Product and manufacturing information, also abbreviated PMI, conveys non-geometric attributes in 3D computer-aided design (CAD) and collaborative product development systems necessary for manufacturing product components and assemblies. PMI may include geometric dimensions and tolerances, 3D annotation (text) and dimensions, surface finish, and material specifications. PMI is used in conjunction with the 3D model within model-based definition to allow for the elimination of 2D drawings for data set utilization.
Aras Corporation is an American developer and publisher of product development software, Aras Innovator. The product is used for product lifecycle management (PLM) and other purposes. Since 2007, Aras has been providing Aras Innovator for free as "Enterprise open-source software", with Aras Corp providing technical support, software updates, and other consulting as a subscription service. Aras Corp was founded in 2000 in Andover, Massachusetts by Peter Schroer, who was chief executive officer (CEO) until 2021. Aras Innovator is an enterprise software suite for managing product lifecycle management business processes. The product is based on the Microsoft .NET Framework and SQL Server. The product is used for product lifecycle management (PLM), advanced product quality planning (APQP), lean product development, product quality control, collaborative product development and new product introduction (NPI). Until 2007, Aras sold their product as proprietary software for enterprises. In 2007, Aras began providing Aras Innovator as open-source software. Clients obtain the software for free, and Aras Corp provides technical support, software updates, and other consulting as a subscription service. In July 2020, Aras confirmed the introduction of a new framework, Digital Twin Core, which introduces functionality for generating and handling digital twins to the Aras low-code package.
Virtual engineering (VE) is defined as integrating geometric models and related engineering tools such as analysis, simulation, optimization, and decision making tools, etc., within a computer-generated environment that facilitates multidisciplinary collaborative product development. Virtual engineering shares many characteristics with software engineering, such as the ability to obtain many different results through different implementations.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Joe Louis.