Modeling and Analyzing Resource-Sensitive Actors: A Tutorial Introduction

Schlatte, Rudolf; Johnsen, Einar Broch; Kamburjan, Eduard; Tarifa, Silvia Lizeth Tapia

doi:10.1007/978-3-030-78142-2_1

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…We consider this language as part of a work in progress framework, where compliance checking helps to establish trust within a service-oriented architecture with various actors, who do not necessarily have the same interests in mind. We plan to extend the framework to explore further static and run-time analysis for a core active object language, e.g., based on ABS [25]. In this paper, we assume that both DCs and DSs have already negotiated the minimum requirements before establishing a compliance environment.…”

Section: Discussionmentioning

confidence: 99%

A Policy Language to Capture Compliance of Data Protection Requirements

Baramashetru

Tarifa

Owe

et al. 2022

Lecture Notes in Computer Science

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From the very outset of the digital era, the protection of personal data against unauthorized usage and distribution has been one of the most significant challenges in distributed services. For this reason, new regulations such as the European Union's the General Data Protection Regulation grant users tight control over their data that is handled by service providers. Compliance with such regulations can take expensive refitting of the existing systems and manual work. We propose a formal language that can define properties like informed consent, data subject rights, and the lawfulness to capture data protection requirements. The language is designed to abstract ownership information to make data dependencies explicit. We formalise a notion of policy compliance. This can be useful in service architecture with various actors who necessarily do not trust each other and may have conflicting interests.

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Section: Discussionmentioning

confidence: 99%

A Policy Language to Capture Compliance of Data Protection Requirements

Baramashetru

Tarifa

Owe

et al. 2022

Lecture Notes in Computer Science

Self Cite

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“…ABS is a modeling language for designing, verifying, and executing concurrent software [27,48]. The core language combines the syntax and object-oriented style of Java with the Actor model of concurrency [28], resulting in active objects which decouple communication and synchronization using asynchronous method calls and cooperative scheduling [18].…”

Section: Abs: Actors With Cooperative Concurrencymentioning

confidence: 99%

“…For the second step, we need an implementation language with a formal semantics (e.g., formalized by a TSS) which enables a simulation relation to be formally established. In this paper, we have opted for the active object language ABS [27,48] (ABS stands for Abstract Behavioral Specification). The semantics of the ABS language is formally defined by a TSS [29] and implemented by backends 4 in Erlang, Haskell, and Java, all of which support parallel execution.…”

Section: Introductionmentioning

confidence: 99%

Proving Correctness of Parallel Implementations of Transition System Specifications

Boer¹,

Johnsen²,

Pun³

et al. 2023

Preprint

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The overall problem addressed in this paper is the long-standing problem of program correctness, and in particular programs that describe systems of parallel executing processes. We propose a new method for proving correctness of parallel implementations of high-level transition system specifications. The implementation language underlying the method is based on the model of active (or concurrent) objects. The method defines correctness in terms of a simulation relation between the transition system which specifies the program semantics and the transition system that is described by the correctness specification. The simulation relation itself abstracts from the fine-grained interleaving of parallel processes by exploiting a global confluence property of the particular model of active objects considered in this paper. As a proof-of-concept we apply our method to the correctness of a parallel simulator of multicore memory systems.

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