TY - JOUR T1 - Two implementation models of abstract data types JF - Computer Languages Y1 - 1987 A1 - Gannon,John D. A1 - Zelkowitz, Marvin V KW - abstract data type KW - ada KW - run-time implementation AB - This paper compares two implementation models for abstract data types: direct and indirect implementations. Direct implementations offer relatively cheap execution and expensive compilation costs while indirect implementations result in relatively expensive implementations and cheap compilation costs. These two models are both accommodated by Ada, and a small experiment compares their costs for a particular data type. VL - 12 SN - 0096-0551 UR - http://www.sciencedirect.com/science/article/pii/0096055187900099 CP - 1 M3 - 10.1016/0096-0551(87)90009-9 ER -