Lecture 12 Implementing Small Languages internal vs. external DSLs, hybrid small DSLs
Reusable Specification of Non-functional Properties in DSLs
14
Reusable Specification of Non-functional Properties in DSLs Francisco Durán, Steffen Zschaler, and Javier Troya 28 September, 2012
description
Reusable Specification of Non-functional Properties in DSLs. Francisco Durán , Steffen Zschaler , and Javier Troya 28 September, 2012. Context. Model-driven Engineering (MDE) Domain-Specific Languages defined through Metamodels (abstract syntax) Graphics (concrete syntax) - PowerPoint PPT Presentation
Transcript of Reusable Specification of Non-functional Properties in DSLs
Reusable Specification ofNon-functional Properties
in DSLsFrancisco Durán, Steffen Zschaler, and Javier Troya
28 September, 2012
(c) Durán, Zschaler, Troya 2
Context• Model-driven Engineering (MDE)
– Domain-Specific Languages defined through• Metamodels (abstract syntax)• Graphics (concrete syntax)
• Language Semantics– Models are token models– Semantics is given through rewriting
• Specified using in-place model transformations
28/09/2012
(c) Durán, Zschaler, Troya 3
Example: A Production Line
28/09/2012
(c) Durán, Zschaler, Troya 4
Non-functional Properties
28/09/2012
Analysis Opportunities
DSL modelsDefined by the user+ Behavioral
ModelStructural
Model
Ecore (MOF)
Rewriting LogicSemantic DomainTransparent to the user
Semantic MappingsTransparent to the user
(Real-Time) MaudeSimulation, reachability analysis, model checking
José E. Rivera, Francisco Durán and Antonio Vallecillo: On the Behavioral Semantics of Real-Time Domain Specific Visual Languages. In Rewriting Logic and Its Applications, LNCS 6381, pp. 174–190
28/09/2012
•Observer values after simulation give predictions,• (Probabilistic) Model checking can be used toverify satisfaction of NFPs
(c) Durán, Zschaler, Troya 628/09/2012
A Different Example
Problem: Complete redefinition of response time.
Better:Extract definition of response time into a separate DSL and weave it in.
(c) Durán, Zschaler, Troya 7
Modularised Response Time Observer
28/09/2012
MMResponseTime Server, Queue, Request
(c) Durán, Zschaler, Troya 8
Weaving Languages
28/09/2012
(c) Durán, Zschaler, Troya 9
Weaving Languages
28/09/2012
(c) Durán, Zschaler, Troya 10
Weaving Languages (2)
28/09/2012
(c) Durán, Zschaler, Troya 11
Weaving Languages (2)
28/09/2012
(c) Durán, Zschaler, Troya 12
Sanity Conditions• Need to ensure that adding observers
does not change behavioursTransformation step possible for model expressed in DSL Step still possible in the same model expressed in DSL +
Observers (possibly including appropriate observer objects)
• For any legal model and transformation sequence
28/09/2012
DSLMMDSL MDSL
M
This condition can only be checked once the merge has been performed.
We provide conditions to be checked of the observer model and the binding that imply the condition below.
(c) Durán, Zschaler, Troya 13
Conclusions• We show composition of language semantics
– For DSLs based on in-place transformation– For conservative extensions
• Two checkable conditions to verify consistency of such extensions– One can be checked of observer language independent of
composition
• Currently working to weaken some of the assumptions made on base language and binding, etc.
28/09/2012
(c) Durán, Zschaler, Troya 14
QUESTIONS?
28/09/2012
