Embedded Systems: Analysis and Modeling with SysML, UML and AADL

By Fabrice Kordon

Since the development of the 1st embedded procedure within the Sixties, embedded platforms have endured to unfold. they supply a regularly expanding variety of providers and are a part of our way of life. the advance of those structures is a tricky challenge which doesn't but have an international resolution. one other trouble is that structures are plunged into the true global, which isn't discrete (as is mostly understood in computing), yet has a richness of behaviors which occasionally hinders the formula of simplifying assumptions as a result of their often self sustaining nature and so they needs to face almost certainly unexpected events (incidents, for example), or perhaps occasions that lie outdoor the preliminary layout assumptions.
Embedded platforms provides the cutting-edge of the improvement of embedded structures and, specifically, concentrates at the modeling and research of those platforms by way of “model-driven engineering”, (MDE2): SysML, UML/MARTE and AADL. A case learn (based on a pacemaker) is gifted which permits the reader to monitor how different features of a method are addressed utilizing the various ways. All 3 structures are vital in that they supply the reader with a world view in their probabilities and show the contributions of every process within the varied levels of the software program lifecycle. Chapters devoted to reading the specification and code new release also are presented.

Contents

Foreword, Brian R. Larson.
Foreword, Dominique Potier.
advent, Fabrice Kordon, Jérôme Hugues, Agusti Canals and Alain Dohet.
half 1. normal Concepts
1. components for the layout of Embedded desktops, Fabrice Kordon, Jérôme Hugues, Agusti Canals and Alain Dohet.
2. Case research: Pacemaker, Fabrice Kordon, Jérôme Hugues, Agusti Canals and Alain Dohet.
half 2. SysML
three. Presentation of SysML strategies, Jean-Michel Bruel and Pascal Roques.
four. Modeling of the Case research utilizing SysML, Loïc Fejoz, Philippe Leblanc and Agusti Canals.
five. necessities research, Ludovic Apvrille and Pierre De Saqui-Sannes.
half three. MARTE
6. An creation to MARTE options, Sébastien Gérard and François Terrier.
7. Case research Modeling utilizing MARTE, Jérôme Delatour and Joël Champeau.
eight. Model-Based research, Frederic Boniol, Philippe Dhaussy, Luka Le Roux and Jean-Charles Roger.
nine. Model-Based Deployment and Code iteration, Chokri Mraidha, Ansgar Radermacher and Sébastien Gérard.
half four. AADL
10. Presentation of the AADL ideas, Jérôme Hugues and Xavier Renault.
eleven. Case examine Modeling utilizing AADL, Etienne Borde.
12. Model-Based research, Thomas Robert and Jérôme Hugues.
thirteen. Model-Based Code new release, Laurent Pautet and Béchir Zalila.

About the Authors

Fabrice Kordon is Professor at college Pierre and Marie Curie in Paris, France, the place he's answerable for the staff “Modélisation et vérification” of the LIP6. His examine box is on the crossroads of dispensed structures, software program engineering and formal methods.
Jérôme Hugues is lecturer-researcher on the Institut Supérieur de l’Aéronautique et de l’Espace (ISAE) in Toulouse, France and has been a member of the language standardization committee (AADL) due to the fact 2006. His study fields conceal the engineering of embedded platforms and the new release of automated code of those structures from modeling languages, integrating verification and research instruments at the version and code level.
Agusti Canals is a software program engineer and has labored at CS “Communication et Systèmes” in Paris, France considering that 1981. he's deputy director of the “Direction de los angeles Qualité et des Audits Technique

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A number of observers can hence be outlined by means of a similar exploration of the version. in regards to the observers, we will therefore encode certainty-type homes in addition to restricted vitality-type houses. The coding curiosity at the a part of the observers is that allows you to convey the homes which are more challenging to specific in temporal common sense akin to LTL or CTL. The observers can't be controlled within the present model of TINA SELT, so we are going to use the OBP Explorer device to examine them. to satisfy requirement eight. 2, with a purpose to degree the time that separates the 2 beginnings of a cycle, we are going to time the observer. The timing needs to be performed with the aid of a clock whose price raises in synch with the time of the simulation of the version. The clock should be reset to 0 whilst a transition has been performed. The clocks of the gazing automata are being controlled in the OBP Explorer device in keeping with the TTS semantic. within the instance in determine eight. four that encodes requirement eight. 2, the observer is going into wait mode once the startingCycleEvent happens. This occasion is outlined ranging from a predicate startingCycle that we are going to specify as follows: occasion startingCycleEvent is {startingCycle turns into actual} This specification corresponds to the outline layout of the predicate that we use in CDL language, that's defined in part eight. four. three. The predicate startingCycle is therefore outlined ranging from the TrackedPacing_StartingPulse, AsynchronousPacing, InhibitedPacing_StartingPulse and TriggeredPacing_WaitingPulse states of the heart specialist automaton and the timeCount variable: predicate startingCycle is { ( {cardiologist}1@TrackedPacing_StartingPulse or {cardiologist}1@AsynchronousPacing or {cardiologist}1@InhibitedPacing_StartingPulse or {cardiologist}1@TriggeredPacing_WaitingPulse ) and {cardiologist}1: timeCount = zero} A clock c is linked to the observer. The stopBradyEvent is detected whilst the stimulation is paused, that's while the message StopBrady despatched through the PGController is obtained. this is often specific hence: occasion stopBradyEvent is { obtain StopBrady from{PGController}1 to {cardiologist}1} whilst this occasion is detected, the observer returns to its preliminary nation, anticipating a brand new cycle to start. The reject nation of the observer is reached if the worth of the clock is going better than the LRL price. The clock is reset to 0 with each one detection of startingCycleEvent. the worth of the clock c hence represents the time that has handed in the comparable cycle. eight. three. three. estate money to make sure the houses at the version, the latter needs to be composed with the use case that describe the surroundings of the procedure, then simulated and explored through a checking instrument. The exploration generates a transition procedure (TTS). This represents all of the behaviors of the version in its surroundings below the shape of a graph of configurations and transitions. in this TTS, we may perhaps perform a estate money, both (Figure eight. 5(a)), through employing, as with regards to the TINA SELT software model-checking algorithms on logical formulation or as relating to the OBP Explorer instrument (Figure eight.

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