PDM(Product Data Management)产品数据管理,CIMDATA定义:“PDM是一种帮助工程师和其他人员管理产品数据和产品研发过程的工具。 PDM系统确保跟踪那些设计、制造所需的大量数据和信息,并由此支持和维护产品”。Product Data Management: Database driven systems designed to manage the various components used in pro ...
*Propositional* logic concerns the relations of entailment between 'sentences', as in the tautology (p ? q) (p ? q). The 'sentence variables' p and q stand for any grammatically well-formed sentence; however, the theory itself doesn't specify what a grammatically well ...
'ontology' has a very different sense in philosophy and in information science. Representation of conceptual domains. This is the information science use, and is due to Tom Gruber, who was generally influenced by Husserlian formal ontology. In analytic philosophy, an ontology ...
When I have burnt DVD optical disks using Nero Software which is a famous optical disk-burning software, unfortunately I came across a big single xxx.avi Media file which can't be burnt by ISO format. So as to I tried another file format system c ...