Implementation of Access Matrix(存取矩阵的实现) Each column= Access-control list for one object(每一列为一个 对象的存取控制列表,定义了谁能做什么操作) Defines who can perform what operation Domain 1= read Write Domain 2= Read Domain 3= read Each row= Capability List( like a key)(每一行为存取权列表, 对于每一个域,允许什么操作作用于那些对象) For each domain, what operations allowed on what objects Object 1-Read Object 4-Read, Write, EXecute Object 5-Read, Write, Delete, Copy Applied Operating System Concepts Silberschatz, Galvin, and Gagne @199918.9 Silberschatz, Galvin, and Gagne ©1999 Applied Operating System Concepts Implementation of Access Matrix（存取矩阵的实现） • Each column = Access-control list for one object （每一列为一个 对象的存取控制列表，定义了谁能做什么操作） Defines who can perform what operation. Domain 1 = Read, Write Domain 2 = Read Domain 3 = Read  • Each Row = Capability List (like a key)（每一行为存取权列表， 对于每一个域，允许什么操作作用于那些对象） For each domain, what operations allowed on what objects. Object 1 – Read Object 4 – Read, Write, Execute Object 5 – Read, Write, Delete, Copy