A Declarative Language for Platform Modeling

1
A Declarative Language for Platform Modeling
Tivadar Szemethy, Institute for Software
Integrated Systems, Vanderbilt University
Formal Platform Models enable the construction of
analysis automata for verification
Block hierarchy to process DFK nodes
PML Example
Match all Nodes in a System and the DFK
SystemSystem
DFKRootFolder
Node_procprocess_decl _initInstances integer0
Node
Proc
Based on the component interaction Model of
Computation
IFRootFolder
DFKprocess_decl _initInstances integer0
Node_proc.name Node.name
DFKprocess_decl _initInstances integer0
DFK._initInstances 1
Match Methods within the Node matched previously
Component-Based Design Model
MC Component interaction model for analysis
Match
Match
component interactions
Modeling the platforms specific implementation
of the MoC
Node
Node_procprocess_decl _initInstances integer0
Sub-Block to map Methods within a node
Proc
Action2
Actions within the block can refer to the objects
matched by the Filter condition. Matches are
propagated to sub-blocks.
MethodMethod
Method
Kernel
RM
component interactions implemented by platform
MP Component interaction model using platform
implementation model
PML Semantics
Implementation
The formal semantics for the Model of
Computation is well known, thus the interaction
analysis model MC can be built. Less known is
how to build MP according to a specific platform.
while exists i such that GFC(Actioni)
true Execute Actioni end
Match
Global Filter Condition for Action1
The Platform Modeling Language (PML) is a
declarative formalism to capture platform entity
? analysis automaton structure mappings
Match
Global Filter Condition for Action2
Create a new variable_decl in system_decl and
associate it with Dataflow
HierarchicalBlocks for organization
SystemSystem
DFKRootFolder
DataflowDataflow
PML uses UML notation, based on source and target
metamodel entities
DstNode
Capacity integer
DFDataflow
DFDataflow
IFRootFolder
InputPort
Filter Conditions (patterns) for element
selection and local context designation.
Src
Dst
Cross-model Associations and temporary objects
variable_decl.name Dataflow.name
The concepts of PML have been tested in the GME
modeling environment by mapping a PML model onto
an equivalent graph transformation specification
using the GReAT graph transformation engine.
Actions to create elements and manipulate
attributes
Match all Dataflow Objects (in DFK/System) with
no variable_decl associated, and match all
system_decls in IF
Dfvar_decl
variable_declvariable_decl
Cardinality 0
system_declsystem_decl
_type Stringinteger_scope Stringpublic