The model contains one compartment called C. There are two species called S1 and S2 and one parameter called k. The model contains one reaction defined as:

Reaction Rate
S1 → S2 C · k · S1

Reaction S1 → S2 defines one local parameter k which has a scope local to the defining reaction and is different from the global parameter k used in the initialAssignment.

The model contains one rule which assigns value to parameter k1:

Type Variable Formula
Assignment k 0.75

In this case there is no initial value declared for parameter k. Thus the value must be calculated using the assignmentRule.

The model contains one initialAssignment:

Variable Formula
S1 k7.5

Note: InitialAssignments override any declared initial values. The initial value of species S1 is inconsisent with the value declared by the model definition. The value calculated by the initialAssignment should be used.

The initial conditions are as follows:

Value Units
Initial amount of S1 10 mole
Initial amount of S2 0.15 mole
Value of parameter k undeclared second-1
Value of local parameter k 0.75 second-1
Volume of compartment C 1 litre

The species values are given as amounts of substance to make it easier to use the model in a discrete stochastic simulator, but (as per usual SBML principles) their symbols represent their values in concentration units where they appear in expressions.