Table 1

The conditions of the connector type

connector type

process connector

associate or inhibitory connector

process type

discrete

continuous

generic

discrete

continuous

generic

(a)

entity

discrete

X

-

X

X

X

X

type

continuous

X

X

X

X

X

X

generic

-

-

X

X

X

X

connector type

process connector

associate or inhibitory connector

process type

discrete

continuous

generic

discrete

continuous

generic

(b)

entity

discrete

X

-

X

-

-

-

type

continuous

X

X

X

-

-

-

generic

X

X

X

-

-

-

Table 1: (a) For a connector c = (e, p) ∈ EP, the entity type h(e), the process type h(p) and the connector type a(c) must satisfy the following conditions, where X means that the connection is allowed and – means that the connection is not allowed. (b) For a connector c = (p, e) ∈ PE, the connector type a(c) is process by definition. The entity type h(e) and the process type h(p) must satisfy the following conditions, where X means that the connection is allowed and – means that the connection is not allowed.

Li et al. BMC Systems Biology 2009 3:42   doi:10.1186/1752-0509-3-42