There are a lot of CAD, I don't know what you are talking about: 1. Electrical CAD Electrical CAD is a CAD software applied in the field of electrical design, which can help electrical engineers improve the efficiency of electrical design and reduce repetitive work and error rate. The goal and scope of electrical CAD system The electrical design of mechanical products includes the design of circuit diagram, wiring diagram, installation diagram, junction box, electrical cabinet and button station. These five parts are not isolated, but interrelated. These five parts can run independently and enjoy information. Therefore, the goal and scope of electrical CAD system is to establish an electrical CAD system that can meet the above functional requirements, ensure design quality, improve efficiency, shorten design cycle and reduce manual labor, including the design of circuit diagram, wiring diagram, installation diagram, junction box, electrical cabinet and button station. 2. Payment for foreign trade settlement CAD documents (referred to as CAD) is the payment condition at the time of delivery, and this payment method is the contract between the buyer and the seller. After the export shipment is completed at the place of export, the shipping documents shall be submitted to the bank or agent designated by the buyer at the place of export, the place of import or the third country to collect the payment. The process is as follows: 1. The seller (exporter) submits documents to the bank designated by the buyer at the place of export; Collect payment for goods; Second, the seller shows the shipping documents of the agent at the export place designated by the buyer and requests payment. The process is the same as the first one, except that the related party changes the paying bank at the export place to the agent at the export place (non-bank); 3. The seller entrusts the agent bank (collecting bank) at the place of export to submit documents to the bank (collecting bank) at the place of import, asking it to pay on its behalf. 3. Canadian dollar (CAD) 1934 During the transitional period before and after the establishment of the Bank of Canada, government-issued banknotes and banknotes issued by chartered banks circulated in the market at the same time. Later, the banknotes issued by Standard Chartered Bank gradually withdrew from the circulation field. By the end of 1949, the banknotes issued by Standard Chartered Bank were rarely used in practice. 4.CAD (heart disease, CHD) is referred to as coronary heart disease, some are referred to as CHD, and some are CAD. In fact, the principle should be abbreviated as CAD, and the coronary artery is the coronary artery. 5. Computer-aided diagnosis CAD refers to assisting imaging doctors to find lesions and improve the accuracy of diagnosis through imaging, medical image processing technology and other possible physiological and biochemical means, combined with computer analysis and calculation. Nowadays, CAD technology mainly refers to computer-aided technology based on medical images. 6. Clothing CAD Clothing CAD organically combines people and computers, maximizes the "quick response" ability of clothing enterprises, and plays an irreplaceable role in the production of clothing industry and its modernization process. It is mainly reflected in improving work efficiency, shortening design cycle, reducing technical difficulty, improving working environment, reducing labor intensity, improving design quality, reducing production cost, saving manpower and space, improving enterprise modern management level and rapid response ability to the market. 7. Management software CAD Management software CAD, called management software computer-aided design (MS-CAD), refers to the process of designing management software on a graphical development interface by using computer software, and finally generating management software that can be applied independently through the design of flow structure, data structure, user interface and other elements of the management software, and finally automatically loading and analyzing data through the computer software system. Maximize the "flexible adjustment" ability of information system. At present, the representative product in the field of management software CAD is Yigo management software CAD(YMS-CAD) developed by Boko Information. Reuse of standard management model: organization model, business model, data model, control model and optimization model. Function: function library: management particles, reusable and subdivided management logic, including molecules, molecular sets, algorithms for optimizing management transactions and so-called business components, all of which are built into the function library. Business application framework (YAF): system construction specification, group organization structure, industry business framework, and financial business mapping rules. Optimal management model base: a business model that can independently complete a management transaction by applying the classic standards of the business modules involved, such as distribution management, group finance, group procurement, etc. Design tools: basic data management (dictionary), form business process design, approval control process design, management workflow design and interface design.