• Conference Object  

      EVALUATING RECURSIVE QUERIES IN CAD USING AN EXTENDED PROJECTION FUNCTION. 

      Hardwick, Martin; Samaras, George S.; Spooner, David L. (IEEE, 1987)
      Entities such as mechanical assemblies are recursive when they contain other assemblies at a lower level of detail. The authors show how recursive CAD entities can be manipulated using an extended projection function. The ...
    • Conference Object  

      The evolution of ROSE: An engineering object-oriented database system 

      Spooner, David L.; Hardwick, Martin; Hvannberg, Ebba; Downie, Blair; Loffredo, Dave; Mehta, Alok; Faulstich, J. Alyce; Sanderson, Donald; Harris, Richard; Abou-Ezzi, Ghassan; Gong, Jie; Young, Jeffrey A.; Rovira, Margarita; Samaras, George S. (Publ by IEEE, 1990)
      ROSE, an object-oriented database system for engineering applications, has recently been reengineered as part of the DARPA Initiative in Concurrent Engineering (DICE). The lessons learned from the first version of the ...
    • Conference Object  

      SOME CONCEPTUAL IDEAS FOR EXTENDING SQL FOR OBJECT-ORIENTED ENGINEERING DATABASE SYSTEMS. 

      Spooner, David L.; Hardwick, Martin; Samaras, George S. (IEEE, 1987)
      A discussion is presented of possible extensions to the SQL query language to make SQL suitable for use with object database systems intended for engineering applications. These extensions allow queries to be expressed ...