Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)


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Tylko niepotwierdzone afiliacje. Zidentyfikuj jako. Astesiano , M. Bidoit , H. Kirchner , B. Krieg-Brueckner , P. Mosses , D. Identyfikator w Bibliotece Wirtualnej Nauki: bwmeta1. The Common Algebraic Specification Language CASL is an expressive language for the formal specification of functional requirements and modular design of software.

It is based on a critical selection of features that have already been explored in various contexts, including subsorts, partial functions, first-order logic, and structured and architectural specifications. CASL should facilitate interoperability of many existing algebraic prototyping and verification tools.


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This paper gives an overview of the CASL design. The major issues that had to be resolved in the design process are indicated, and all the main concepts and constructs of CASL are briefly explained and illustrated - the reader is referred to the CASL Language Summary for further details. Some familiarity with the fundamental concepts of algebraic specification would be advantageous. Software Eng. Aspinall, Type systems for modular programs and specifications, Ph. Thesis, Dept. Astesiano, H. Kreowski, B. Astesiano, G. Reggio, UML as heterogeneous multiview notation: strategies for a formal foundation, in: Proc.

Autexier, D. Hutter, H. Mantel, A. Schairer, INKA 5. Bidoit, M. Cengarle, R. Hennicker, Proof systems for structured specifications and their refinements, in: E. Bidoit, D. Sannella, A. Burstall, J. Goguen, Putting theories together to make specifications, Proc.

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Joint Conf. Cerioli, M. Gogolla, H. Kirchner, B. Qian, M. Wolf Eds. There is also the problem of " verifying the verifier "; if the program which aids in the verification is itself unproven, there may be reason to doubt the soundness of the produced results. Some modern model checking tools produce a "proof log" detailing each step in their proof, making it possible to perform, given suitable tools, independent verification.

The main feature of the abstract interpretation approach is that it provides a sound analysis, i. Moreover, it is efficiently scalable, by tuning the abstract domain representing the property to be analyzed, and by applying widening operators [12] to get fast convergence.

Saoithin: afa6ccce doc/propdeapanne.tk

Formal methods are applied in different areas of hardware and software, including routers, Ethernet switches, routing protocols, security applications, and operating system microkernels such as seL4. There are several examples in which they have been used to verify the functionality of the hardware and software used in DCs [ clarification needed ].

Intel uses such methods to verify its hardware and firmware permanent software programmed into a read-only memory [ citation needed ]. Dansk Datamatik Center used formal methods in the s to develop a compiler system for the Ada programming language that went on to become a long-lived commercial product.

There are many areas of hardware, where Intel have used FMs to verify the working of the products, such as parameterized verification of cache coherent protocol, [18] Intel Core i7 processor execution engine validation [19] using theorem proving, BDDs , and symbolic evaluation , optimization for Intel IA architecture using HOL light theorem prover, [20] and verification of high performance dual-port gigabit Ethernet controller with a support for PCI express protocol and Intel advance management technology using Cadence.

In software development , formal methods are mathematical approaches to solving software and hardware problems at the requirements, specification, and design levels. Formal methods are most likely to be applied to safety-critical or security-critical software and systems, such as avionics software.

On Specifications, Theories, and Models with Higher Types

Software safety assurance standards, such as DOC allows the usage of formal methods through supplementation, and Common Criteria mandates formal methods at the highest levels of categorization. For sequential software, examples of formal methods include the B-Method , the specification languages used in automated theorem proving , RAISE , and the Z notation. In functional programming , property-based testing has allowed the mathematical specification and testing if not exhaustive testing of the expected behaviour of individual functions.

The Object Constraint Language and specializations such as Java Modeling Language has allowed object-oriented systems to be formally specified, if not necessarily formally verified. For concurrent software and systems, Petri nets , process algebra , and finite state machines which are based on automata theory - see also virtual finite state machine or event driven finite state machine allow executable software specification and can be used to build up and validate application behavior.

Another approach to formal methods in software development is to write a specification in some form of logic—usually a variation of first-order logic FOL —and then to directly execute the logic as though it were a program. There is also work on mapping some version of English or another natural language automatically to and from logic, and executing the logic directly.

Formal methods

Examples are Attempto Controlled English , and Internet Business Logic, which do not seek to control the vocabulary or syntax. A feature of systems that support bidirectional English-logic mapping and direct execution of the logic is that they can be made to explain their results, in English, at the business or scientific level. From Wikipedia, the free encyclopedia. This section is in list format, but may read better as prose. You can help by converting this section , if appropriate. Editing help is available.

August Butler Retrieved Michael Holloway. Archived from the original PDF on 16 November Proceedings of the International Conference on Information Processing. Communications of the ACM , 7 12 — Cortesi and M. Computer Languages, Systems and Structures. Volume 37 1 , pp.

software requirement specification - software engineering -

Proceedings PDF. Unmanned aerial systems integration to National Airspace System. Chou, P. Mannava, S. Seligman, I. Eisner, A. Nahir, K.

Attie, H. Schubert, W.

Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)
Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)
Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)
Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)
Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)
Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports) Algebraic Foundations of Systems Specification (IFIP State-of-the-Art Reports)

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