CBSE - presentations Advanced Component-Based Software Engineering Assignment 2

Assigment 2  There will be some changes in the assignment 2 Due to a large number of students – less flexibility to ensure that the students achieve the knowledge required Running the assignment in a more organized form Good opportunity to learn about trends in component-based software engineering (practice and research). Due to an opportunity to participate in a research project Page 2, October 6, 2015 CBSE - presentations

Assigment 2 plan  Goal Learn about modeling component-based systems using two different component models Learn about principles of the two component models Practical exercise in modeling component-based systems Following and reporting the own work and reflecting over the work and the results Make assignment 2 more fun! Page 3, October 6, 2015 CBSE - presentations

Assigment plan – changes  NO long reports!  Instead Assignment – Reading & questionnaire Practical work Short presentation Individual work (everyone work for himself/herself) Participating in a research project Page 4, October 6, 2015 CBSE - presentations

Assigment 2 - actions Actions 1.STUDY - Get theoretical knowledge about modeling component-based systems using two technologies Read literature about  modeling components and component-based systems using UML  Modeling components and component-based systems using SaveCCM Model an application (the requirements and some specifications will be given) using UML and SaveCCM 2.Questionnaire I/test 1. On-line assignments to the questions related to UML and SaveCCM 3.INSTALLATION & TRAINING 1. Installing tools  IBM Rational Software Architect  Save-IDE Development Environment 2. Model the application in these tools Page 5, October 6, 2015 CBSE - presentations

Assigment 2 – actions (cont.) Actions 4.MODELING - For a given requirements and draft specification model Design a model using IBM Software Architect or Save-IDE Measure your activities Submit the model 5.Questionnaire II Fill in data about your experience and findings during the work 6.Presentation Present the result Page 6, October 6, 2015 CBSE - presentations

Assigment 2 - actions Actions 1.STUDY 5/2 – 17/2 Reading papers + “manual” 2.Questionnaire I18/2 (Wednesday) 3.INSTALLATION19/2 & TRAINING 4.MODELING25/2 – 10/3 5. Questionnaire II11/3 (Wednesday) 6. Presentation16/3 (Monday) Page 7, October 6, 2015 CBSE - presentations 1 Week 2 Weeks 3 Days All G1 G2 G3 UML Save UML+Save 3 Weeks Installation + UML + SaveIDE modelling 1 Week

UML - find literature by yourself UML design UML component diagrams UML profiles SaveCCM The SAVE Approach to Component-Based Development of Vehicular Systems. M. Åkerholm, J. Carlson, J. Fredriksson, H. Hansson, J. Håkansson, A. Möller, P. Pettersson, and M. Tivoli. Journal of Systems and Software, 80(5):655–667, May The SaveCCM Language Reference Manual. M. Åkerholm, J. Carlson, J. Håkansson, H. Hansson, M. Nolin, T. Nolte, and P. Pettersson. Technical Report ISSN ISRN MDH-MRTC-207/ SE, M¨alardalen University, January Page 8, October 6, 2015 CBSE - presentations

Assigment 2 - actions Actions 1.STUDY 5/2 – 17/2 2.Questionnaire I18/2 (Wednesday) 3.INSTALLATION19/2 & TRAINING 4.MODELING25/2 – 10/3 5. Questionnaire II11/3 (Wednesday) 6. Presentation16/3 (Monday) Page 9, October 6, 2015 CBSE - presentations 1 Week 2 Weeks 3 Days All G1 G2 G3 UML Save UML+Save 3 Weeks Installation + UML + SaveIDE modelling 1 Week

Modelling I qModel a system using IBM Rational tool or SaveIDE l System specification and other requirements will be given to you qIBM Rational Software Architect tool l UML + SaveUML profile

Modelling II qModel a system using IBM Rational tool or SaveIDE l System specification and other details will be given to you qSaveIDE l SaveComp Component Model (SaveCCM)

Requirements and deliverables qIndividual work qEvery student has to make notes on: l Time spent on implementing the model l Number of errors the developing tool reported during the work l... l Important: your notes must be accurate q delivering model you developed and data you collected q fill in an online questionnaire: l your experience during the work l your results

13 SaveCCM – For Vehicular Systems  Characteristcs: Many suppliers Distributed applications Safety Reliability Resource efficiency (Hard) Real-Time requirements

The SaveCCM component model Page 14, October 6, 2015 CBSE - presentations

15 SaveCCT Technology Overview Repository

16 The SaveCCM component model  Restictive in comparision to PC/Internet component models COM,.Net, EJB Enable analysis during design-time, and determinstic reproducable behaviour during run-time (test-time)  Textual xml, and graphical UML influenced syntax

Mikael Åkerholm, SaveCCT lecture CBSE Course SaveCCM Syntax: Basic Component  Ports Trigger, data, combined  Behaviour Read  Execute  Write fixed_t error = Setpoint – Value; fixed_t u = fixed_mul(K, e); if (IntegrationEnabled) u += fixed_div(NewState, T_i); Control = LIMIT(u, 0, MAX_CONTROL); State = error;

Mikael Åkerholm, SaveCCT lecture CBSE Course SaveCCM Syntax: Basic Component  Ports Trigger, data, combined  Behaviour Read  Execute  Write fixed_t error = Setpoint – Value; fixed_t u = fixed_mul(K, e); if (IntegrationEnabled) u += fixed_div(NewState, T_i); Control = LIMIT(u, 0, MAX_CONTROL); State = error;

Mikael Åkerholm, SaveCCT lecture CBSE Course SaveCCM Syntax: Switch  Ports Setports determine active configuration  Connection patterns For static or dynamic reconfiguration

20 SaveCCM Syntax: Assembly  Ports  Internal components and connections  Encapsulation of a “subsystem”

Mikael Åkerholm, SaveCCT lecture CBSE Course SaveCCM Syntax: Composite Component  Ports  Internal components and connections Restricted behaviour, read-execute-write

Séverine Sentilles 22 Unified Modelling Language (UML) Modelling components

Component diagram  Three representations for a component  But access points are required Utilisation of interfaces Utilisation of port C > C > C

Interfaces  Role: Specification of the access point Required functionalities Provided functionalities  2 existing representation The most descriptive The compact > ProvidedItf > C > RequiredItf > C ProvidedItf RequiredItf

Ports  Role: Access point to the internal structure of the component Can have 0 or several interfaces  Representation: > C

Séverine Sentilles 26 Relationship between components  Use the notion of connector Roughly a way to link components together & make them ”communicate” via a request of services  Generalisation of the means of communication  Example: Client-server Pipe&filter Message exchange  Can also be called horizontal composition > Client > Server IdenticalItf

Séverine Sentilles 27 Vertical composition  Can also be called hierarchical composition  Role To increase the component granularity To expose the content of the component  Use the notion of delegation connector (between two ports) > C > A > B

Séverine Sentilles 28 Profile UML  Extension of the UML model in order to adapt it to the particular requirements of a context Adjunction of elements Adjunction of constraints But: No suppression !!!  Uses Stereotypes Tagged values OCL Constraints  Examples: Profile for EJB components Profile for a software architecture