The Instance-Based Multilevel Security Model - Multilevel Security for Relational Databases - page 158

Get user class L(user)

Set i = 1

i = i + 1

Get Classi i ({P}, {u})

No

U ∈ Classi i {u}

Ye s

Set K = 1

K = K + 1

Get Instance K ({P}, {L})

No

Instance K ∈ Classi i

Ye s

Set j = 1

j = j + 1

Get PL j

No

L(user) ≥ PL j

Ye s

Detele PL j

End

Figure 8.5 The DELETE operation procedure in IBMSM. (J. Parsons and J. Su. 2006. Proceedings
of Design Science Research in Information Systems and Technology (DESRIST), Claremont, CA,
107-130.)