Architecting System-of-Systems

Transcription

1 Architecting System-of-Systems from basic concepts towards a SoS profile & supporting tools paolo lollini university of florence, italy p. arun babu resiltech s.r.l, italy

2 Slides can be found at 2

3 Overview 0. Introduction 1. Introduction to the AMADEOS conceptual model for SoS 2. The AMADEOS SysML profile Introduction to MDE and SysML basic modeling constructs The AMADEOS SysML profile introduction, overview, and role in MDE Example AMADEOS profile applications, demos, and exercises 3. AMADEOS architectural framework 4. AMADEOS supporting facility for designing SoS Goals Google Blockly Supporting facility using Blockly Customization... 54

4 Supporting facility tool for AMADEOS Things we considered 1. A generic SoS designer 2. Should have simple and intuitive user interface 3. In real life, SoS designers are not CS / OO / SysML experts 4. Reduce cost By requiring less training/support for designers 5. Reduce lines in design (to avoid spaghetti diagrams) 6. Warn designers when they make mistakes 7. Rapid modelling & simulation 55

5 Supporting facility tool for AMADEOS Things we considered 1. A generic SoS designer 2. Should have simple and intuitive user interface 3. In real life, SoS designers are not CS / OO / SysML experts 4. Reduce cost By requiring less training/support for designers 5. Reduce lines in design (to avoid spaghetti diagrams) 6. Warn designers when they make mistakes 7. Rapid modelling & simulation Where should the designer spend the effort? On modelling than struggling with with the tool! 56

6 Google Blockly 1. Is a visual programming editor, used to program using blocks 2. Only compatible blocks can be connected together 3. Can be made correct by design 4. Supports code and XML generation 5. Only a modern web browser is required (any device/os) 57

7 Demo 1. Most basic example: 2. Blockly games examples: 3. Real world examples using Blockly/Scratch based ideas: Fashion Stock market Andorid appinventor.mit.edu/explore/designer-blocks.html Electronics: Codebug Ardublockly 58

8 Model driven engineering flow 59

9 AMADEOS supporting facility tool A tool to: Model Validate Query and Simulate a System-of-Systems Link to the homepage of tool Though, any modern browser would work fine, Firefox is faster! 60

10 Let s start creating models!

11 Let s start with a simple block By default, a SoS block is created on the workspace Figure: Add new blocks by clicking on the (+) drop-down/from left-hand side toobox 62

12 Three ways of viewing a block Figure: 3 ways of viewing a block cycle between views by double clicking the block 63

13 All viewpoints and building blocks of this block 64

14 Filter some of the viewpoints or building blocks 65

15 Comment your design 66

16 Modularize the design by grouping 67

17 Manage requirements for each viewpoint 68

18 Model validation Blockly by default model validation by letting only compatible blocks to be connected with each other. User can add custom validation in JavaScript by using the below constraint functions: 1. warn_if ( on_condition, " WarningMessage "); 2. detach_if ( on_condition, block ); Figure: Two helper functions for model validation 69

19 Model validation example looks ok 70

20 Model validation example a warning 71

21 Simulation

22 Dynamic behaviour modelling Why? A static model is like a car without an engine! You need to install Python 2.7 (preferably at c:\python27 directory) PlantUML viewer (atom editor) would be nice to have You may also install other software/system... to interact with your simulation 73

23 Add behaviour Dynamic part of model 74

24 Load the example model see if makes sense 75

25 Load the example model load sequence diagram You may right-click on workspace to view the sequence diagram 76

26 Load the example model load sequence diagram. Autogenerated sequence diagram 77

27 Example simulation result with timestamp 78

28 Blockly XML Export your model to XML and have a look at it. If you want to transform this model to some other format you may need to use this.xml file! 79

29 Lets use view PlantUML To see viewpoints and their relationships 80

30 Model querying Search inside a large model! 81

31 Model query return true; (i.e. get all blocks) 82

32 Model query return block.of type == RUMI ; 83

33 Model query zoomed results 84

34 Demos! Simulation using Python 85

35 Stigmergic channels There is food in environment. Ants keep searching for food. If they get it, they take it and leave pheromone in environment. Pheromone level decreases in environment over time Ants indirectly communicate with each other through pheromone 86

36 Ants model Please note the cardinality and singleton in the model! 87

37 Pheromone vs. Food simulation Food vs. Pheromone Food vs. Pheromone 50 Pheromone Food 50 Pheromone Food Value Value Time Time Figure: Food vs. Pheromone in environment 88

38 Football model 2 2 Not formally a SoS yet for this we need to add stratergies for players 89

39 Some real world results From ThalesNL and ENCS 90

40 Overview 0. Introduction 1. Introduction to the AMADEOS conceptual model for SoS 2. The AMADEOS SysML profile Introduction to MDE and SysML basic modeling constructs The AMADEOS SysML profile introduction, overview, and role in MDE Example AMADEOS profile applications, demos, and exercises 3. AMADEOS architectural framework 4. AMADEOS supporting facility for designing SoS Goals Google Blockly Supporting facility using Blockly Customization... 91

41 Custom validation/code for Blocks While building the supporting facility tool, if the build tool finds: 1. <block-name>.code.js it is added to the block s code for the SoS designer in Blockly 2. <block-name>.code.py it is added to the block s code for simulator Example: SoS.code.js and SoS.code.py 92

42 Beyond SysML... Systems engineering would require other kinds of diagrams (where SysML may not be the perfect way to represent them...) Functional block diagram N2 chart House of Quality Ishikawa diagram (fishbone) Parameter diagram Other future diagrams! 93

43 Custom diagrams!

44 Ishikawa/Fishbone diagram description Equipment Process People Problem Materials Environment Management Figure: Fishbone diagram 95

45 Ishikawa/Fishbone diagram PlantUML text package Fishbone { Problem > Equipment : has s o u r c e i n Problem > P r o c e s s : has s o u r c e i n Problem > People : has s o u r c e i n Problem > M a t e r i a l s : has s o u r c e i n Problem > Environment : has s o u r c e i n Problem > Management : has s o u r c e i n Equipment > Subproblem : h a s P r o c e s s > Subproblem : has People > Subproblem : has M a t e r i a l s > Subproblem : has Environment > Subproblem : has Management > Subproblem : h a s Subproblem > Subproblem : h a s } 96

46 Ishikawa/Fishbone diagram PlantUML diagram Figure: PlantUML of the fishbone diagram 97

47 Ishikawa/Fishbone diagram Blockly Figure: Blockly version of the fishbone diagram 98

48 Use of image based views not yet available! 99

49 Try the tool on problems of your domain! (10-15 minutes)

50 Conclusions 1. Showcased a tool for MDE for SoS developed for the AMADEOS project 2. We demonstrated SoS Design Validation Querying Simulation 3. Presented some real-world results from AMADEOS partners 4. There is good scope for improvements to bring MDE tools to masses 101

51 [ End of tutorial ]

52 Feedback! Please provide your Open to Questions Comments Issues Suggestions Improvements 103

53 Thank you! Unifi.it Resiltech.com For any business related information on modelling/simulation tools: Resiltech.com

54 References / Figure citations 1. Figure /AH-64D_Apache_Longbow.jpg, AH-64_Apache.jpg 2. Figures 19 and 20 uml-best-practice-5-rules-for-better-uml-diagrams/ comment-page-4/ 105