CS 290C: Formal Models for Web Software Lecture 9: Analyzing Data Models Using Alloy Analyzer and SMT-Solvers Instructor: Tevfik Bultan Bounded: We also see that the ...
CS 290C: Formal Models for Web Software Lecture 2: Navigation Modeling with Statecharts Instructor: Tevfik Bultan What can we do after generating navigation models?
Closed under PREPONE ... of L closed under prepone and join. closure(L) C ... Extends prepone by allowing to swap messages m1, m2 when receiver(m1) = sender(m2) ...
An efficient data structure for representing truth sets of boolean formulas and ... end; {end of the outmost for loop} return(subgraph[v.id]); end; Reduce Algorithm ...
Infinite State Model Checking with Presburger Arithmetic Constraints Tevfik Bultan Department of Computer Science University of California, Santa Barbara
Eliminating Web Software Vulnerabilities with Automated Verification Tevfik Bultan Verification Lab Department of Computer Science University of California, Santa Barbara
A Tool for Choreography Analysis Using Collaboration Diagrams Tevfik Bultan University of California Santa Barbara Xiang Fu Hofstra University Chris Ferguson
Tools for Automated Verification of Web Services Modeling Interactions of Web Software Analyzing Conversations of Web Services Tevfik Bultan Department of Computer ...
Collaborators: Xiang Fu, Jianwen Su, Rick Hull. Web Service Composition ... [Bultan, Fu, Hull, Su WWW'03] M : finite set of message classes. P : finite set of peers ...
Model Checking XML Manipulating Software. Xiang Fu Tevfik Bultan Jianwen Su ... t denotes a tag. XPath Semantics. XPath expression are evaluated from left to right ...
Can be extended to other variable types if a symbolic representation is provided ... Eliminating one variable from a conjunction of constraints may double the number ...
Specification of Conversations Using Collaboration Diagrams ... A separated collaboration diagram is realizable if all its events are well-informed ...
189B (March 31-April 4) Prototype demonstration to company representatives to get feedback ... Melissa Hunter, Software Design Engineer, Microsoft ' ...
integer a,b,c,r; restrict a =0 and b =0 and c =0; initial r=0; module max(x,y,result) ... b' x: integer, y:boolean (x 0 and x' x 1 and y'=true) or (x =0 and x' ...
a web service/composition/choreography/workflow/... a goal j. do ... Governments: local, federal, courts, prisons, ... Challenges: Interoperation & integration ...
The SB may accept or reject the registration. If the registration is accepted, the SB sends an analysis request to the RD ... Example: G ( accept F bill ) ...
Model checking problem: Given an LTL property, does the conversation set satisfy the property? ... set is regular: (r1 | r2 | ra)* e. Queues are not bounded ...
No primed variables in state formulas ... In transition formulas primed-variables denote the next-state values, unprimed ... actions: primed variables denote ...
Modules can be composed using synchronous or asynchronous composition ... Asynchronous composition is almost equivalent to logical OR ... Asynchronous Composition ...
Formal Modeling and Analysis Jianwen Su University of California, Santa Barbara The Verification Problem Given a web service/composition/choreography/workflow/ a ...
... one of the exits C3-C8 can cross runway 16L only if no airplane is taking off at ... private variables for number of airplanes on each runway and each taxiway ...
A lower bound on. web service composition. Anca Muscholl. Igor Walukiewicz. Web services ... Network-resident software services accessible via standardized protocols ...
... Design and Specification of E-Service Composition ... E-Services Composition. Web very flexible forms of distributed ... (automatic composition) ...
Eliminating Navigation Errors in Web Applications via Model Checking and Runtime Enforcement of Navigation State Machines Sylvain Halle, Taylor Ettema, Chris Bunch, and
How do we get the stubs representing other modules? Write interfaces. Interfaces specify the behavior of a module from the viewpoint of other modules ...
Semantics of HTS --- Snapshot. Snapshot: observable point in execution ... Step relates the current snapshot and the next snapshot of an HTS. March 26, 2004 ...
Tuba Yavuz-Kahveci, University of Florida, Gainesville ... We have been investigating a design for verification approach based on the following principles: ...
Automated Verification of Temporal Properties of Finite State Systems ... pre and post-conditions are not enough. Reactive Systems: A Very Simple Model ...
We would like to guarantee certain properties of a concurrent system. Our Approach ... P : Temporal property. of main module. What About Arbitrary Number of Processes? ...
Assuring reliability of concurrent programs is challenging. Can we have a structure for the ... [SF03], 'design for verification', white paper in Synopsis Inc. ...
You should not try to insert an item to a shopping cart before creating a shopping cart ... First initializes the cart and. Then generates a sequence of user ...
Distributed processes, especially in e-commerce, will need txnal properties ... and post-conditions (in situation calculus) (Simplified) example post-condition ...
We can effectively construct a TCM M' such that L(M) = L(M') and in any ... We construct a PCM acceptor M which first checks that its input is accepted by MI. ...
... the extras take the form of bonus points or air miles, but other bonuses are possible. ... A membership card is issued to one person, but can be used for an ...
In 1999 Bugzilla, the bug database for the browser Mozilla, listed more than 370 open bugs ... Overwhelmed with this work Mozilla developers sent out a call ...