Real-Time Modeling with UML: The ACCORD Approach

Lanusse, Agnès; Gérard, Sébastien; Terrier, François

doi:10.1007/978-3-540-48480-6_25

Cited by 28 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since its adoption as a standard, the UML has been used in a large number of time-critical and resource-critical distributed systems [24][25][26][27][28]. Based on this experience, a consensus has emerged that, while being useful, UML is lacking some modeling notations in key areas that are of particular concern to designers.…”

Section: Uml Profile For Schedulability Performance and Timementioning

confidence: 99%

A UML-based quantitative framework for early prediction of resource usage and load in distributed real-time systems

2008

View full text Add to dashboard Cite

This paper presents a quantitative framework for early prediction of resource usage and load in distributed real-time systems (DRTS). The prediction is based on an analysis of UML 2.0 sequence diagrams, augmented with timing information, to extract timed-control flow information. It is aimed at improving the early predictability of a DRTS by offering a systematic approach to predict, at the design phase, system behavior in each time instant during its execution. Since behavioral models such as sequence diagrams are available in early design phases of the software life cycle, the framework enables resource analysis at a stage when design decisions are still easy to change. Though we provide a general framework, we use network traffic as an example resource type to illustrate how the approach is applied. We also indicate how usage and load analysis of other types of resources (e.g., CPU and memory) can be performed in a similar fashion. A case study illustrates the feasibility of the approach. Abbreviations ASAAutomatic system agent CCFG Concurrent control flow graph CCFP Concurrent control flow path CFP Control flow path DTCCFP Distributed timed concurrent control flow path LFQ Load forecasting query MBLF Model-based load forecasting MBPA Model-based predictability analysis MBRUA Model-based resource usage analysis NDD Network deployment diagram PA Predictability analysis DRTS Distributed real-time system RUA Resource usage analysis RUD Resource usage definition RUM Resource usage measure RUQ Resource usage query SCAPS SCAda-based power system SD Sequence diagram SDS Sequence diagrams schedule TC Tele-control unit TCCFP Timed concurrent control flow path UML-SPT UML profile for schedulability, performance, and time 123 276 V. Garousi et al.

show abstract

Section: Uml Profile For Schedulability Performance and Timementioning

confidence: 99%

A UML-based quantitative framework for early prediction of resource usage and load in distributed real-time systems

2008

View full text Add to dashboard Cite

show abstract

“…Several UML approaches were already proposed to take into account the real-time system requirements, such as UML-RT [19], RT-UML [5], UML-SDL [9] and ACCORD/UML [10]. For example, the basic concepts of RT-UML were integrated in the standard UML through the UML profile for Schedulability, Performance, and Time (denoted SPT profile) [13], which is recently replaced by the UML profile for Modeling and Analysis of Real-Time and Embedded Systems (MARTE) [12].…”

Section: Related Workmentioning

confidence: 99%

Structural Model of Real-Time Databases

Idoudi¹,

Duvallet²,

Sadeg³

et al. 2008

Proceedings of the Tenth International Conference on Enterprise Information Systems

View full text Add to dashboard Cite

Real-time databases deal with time-constrained data and time-constrained transactions. The design of this kind of databases requires the introduction of new concepts to support both data structures and the dynamic behaviour of the database. In this paper, we give an overview about different aspects of real-time databases and we clarify requirements of their modeling. Then, we present a framework for real-time database design and describe its fundamental operations. A case study demonstrates the validity of the structural model and illustrates SQL queries and Java code generated from the classes of the model.

show abstract

“…Thus, UML has spread in areas where initially it could not find its place as the specific area of real-time applications development. Several UML approaches were already proposed to take into account the real-time system requirements such as UML-RT [19], RT-UML [5], UML-SDL [8], and ACCORD/UML [10]. The basic concepts of RT-UML were integrated in the UML standard through the UML profile for Schedulability, Performance, and Time (denoted SPT profile) [14].…”

Section: Introductionmentioning

confidence: 99%

Structural Model of Real-Time Databases: An Illustration

Idoudi

Duvallet

Sadeg

et al. 2008

2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC)

View full text Add to dashboard Cite

A real-time database is a database in which both the data and the operations upon the data may have timing constraints. The design of this kind of database requires the introduction of new concepts to modelize both data structures and the dynamic behavior of the database. In this paper, we propose an UML2.O profile, entitled UML-RTDB, allowing the design of structural model for a real-time database. One of the main advantages of UML-RTDB is its capacity to take into account real-time database properties through specialized concepts in rigourous, easy and expressive manner.

show abstract

Real-Time Modeling with UML: The ACCORD Approach

Cited by 28 publications

References 1 publication

A UML-based quantitative framework for early prediction of resource usage and load in distributed real-time systems

A UML-based quantitative framework for early prediction of resource usage and load in distributed real-time systems

Structural Model of Real-Time Databases

Structural Model of Real-Time Databases: An Illustration

Contact Info

Product

Resources

About