OSATE_VS_STOOD
Download
Report
Transcript OSATE_VS_STOOD
MODELLING AND ANALYZING BASED ON AADL
OSATE VERSUS STOOD
Farhana Rahman, Carleton University
Yu Sun, University of Ottawa
OUTLINE
Introduction
Scenario & Background
Architecture Analysis & Design Language (AADL)
STOOD & OSATE
Experimental Design
Evaluation Criteria & Method
Test Cases
Comparison, Analysis & Solution
Conclusion
INTRODUCTION
XYZ SOFTWARE SYSTEM INC.
o Established in 2010
o A mid-sized start-up company
o Focus on the development of real-time embedded systems
time consuming & costly
Figure 1. XYZ Software System Inc.
INTRODUCTION
ARCHITECTURE ANALYSIS AND DESIGN LANGUAGE
(AADL)
AADL, as an international industry
standard, it
• supports multiple analyses
from a single architectural
model
• enables modeling and analysis
throughout the life cycle
• provides analysis of runtime
behavior such as availability,
Figure 2. Architectural Model
performance, and security.
INTRODUCTION
AADL REPRESENTATIONS
Figure 4. AADL Representations [1]
INTRODUCTION
AADL COMPONENTS
Figure 5. AADL Components [1]
INTRODUCTION
CANDIDATE TOOLS: OSATE & STOOD
OSATE (Open-source AADL Tool Environment) [2]
Developed by Software Engineering
Institute, Carnegie Mellon University
Eclipse based, full language, full AADL
XMI support
Integrated text and graphical editing with
TOPCASED
Figure 6. OSATE Plug-In Development for AADL
Analysis plug-ins
INTRODUCTION
CANDIDATE TOOLS: OSATE & STOOD
STOOD [3]
Commercial modelling tool developed by
Ellidiss Software
AADL-related features
Legacy Ada and C code import
Industry standards compliance, including
D0178B
Full UNIX/Windows interoperability
Provides state of the art real time software
development offering UML 2.0 with full
software modeling
EXPERIMENTAL DESIGN
EVALUATION CRITERIA
Essential / Critical
Criteria
• Modelling
• Models Verification and Basic Analysis
Important Criteria
• Easiness of Use
• More Support on Model Analyzing
• Technical Support
Desired Criteria
• Code and Documents Generation
• Low Entry-cost
EXPERIMENTAL DESIGN
ESSENTIAL / CRITICAL CRITERIA
Functional Features: Modelling
Strong support for both the AADL standard textual and graphical notations
Comply with the AADL syntax and semantics
Model import/export
Consistence between model and text
Functional Features: Models Verification and Basic Analysis
Ability of fault detecting at early deigned phase
Model statistic checking along with application
EXPERIMENTAL DESIGN
IMPORTANT CRITERIA
Easiness of Use
Installation and system requirement
Training Requirement
Interface
More Support on Model Analyzing
Schedulability analysis
Problem identification
Technical Support
Supporting documentation available, such as tutorials, examples, on-line
help, etc.
EXPERIMENTAL DESIGN
DESIRED CRITERIA
Code and Document Generation
Essential code and document generated from the system model
Low Entry-cost / Pricing
Lowest cost as possible
EXPERIMENTAL DESIGN
METHODOLOGY: NIH SCORING SYSTEM [4]
EXPERIMENTAL DESIGN
METHODOLOGY: SCORING SYSTEM
Category
No.
Criteria
Priority (Pi)
Score (Si)
Essential /
Critical
0
Modelling
1
1-9
1
Model Verification & Basic Analysis
1
1-9
2
Easiness of Use
2
1-9
3
More Support on Model Analyzing
2
1-9
4
Technical Support
2
1-9
5
Code & Document Generation
3
1-9
6
Low Entry-cost
3
1-9
Important
Desired
𝑇𝑜𝑡𝑎𝑙 𝑚𝑎𝑟𝑘 =
6
𝑖=0 𝑃𝑖
∗ 𝑆𝑖
EXPERIMENTAL DESIGN
METHODOLOGY: TEST CASES
Speed Control System
A simplification of an aeronautical, automotive, or other vehicle speed control
system. It includes a speed sensor that provides data to a controller. The
controller outputs a command to a throttle actuator.
sensor
data
command
data
Avionics System Models, SEI, Carnegie Mellon University [5]
Comparison, Analysis & Solution
COMPARISON: MODELLING (OSATE)
menu
textual design
tool bar
graphical
design
property
settings
object
model
Comparison, Analysis & Solution
COMPARISON: MODELLING (OSATE)
No specification alert
Comparison, Analysis & Solution
COMPARISON: MODELLING (STOOD)
menu
tool bar
graphical design
property
settings
textual design
Comparison, Analysis & Solution
COMPARISON: MODELLING (STOOD)
save changes
graphical design
only available ports shown
textual design
Comparison, Analysis & Solution
COMPARISON: MODELLING
OSATE
STOOD
Graphical & Textual Support
Comply with AADL Syntax &
Semantics
Model import/export
Consistency between model
and text
Automatically realize the
consistency between the
textual and graphical design
Cannot update the
graphical design
automatically after
changing the text
Mark
2
4
Comparison, Analysis & Solution
COMPARISON: MODEL VERIFICATION & BASIC ANALYSIS (OSATE)
Comparison, Analysis & Solution
COMPARISON: MODEL VERIFICATION & BASIC ANALYSIS (OSATE)
model
statistics
application
statistics
Comparison, Analysis & Solution
COMPARISON: MODEL VERIFICATION & BASIC ANALYSIS (STOOD)
different
checking
rules
Comparison, Analysis & Solution
COMPARISON: MODEL VERIFICATION & BASIC ANALYSIS (STOOD)
Comparison, Analysis & Solution
COMPARISON: MODEL VERIFICATION & BASIC ANALYSIS
OSATE
STOOD
Fault Detection at
Early Stage
Model Statistic
Checking
Mark
2
5
Comparison, Analysis & Solution
COMPARISON: EASINESS OF USE
OSATE
STOOD
Installation
Easy to install, but Java 5.0 or higher
and Eclipse 3.3 or higher required;
platform independent
Both the installation file for
Windows and Unix are offered with
instructions, easy to install.
Training
With a few background of AADL
language, one can build the illustrated
model within 1 day and analysis the
model within one week.
With a few background of AADL,
one can build the illustrated model
within 2 days and analysis the
model within 10 days.
Interface
Easier to switch between textual and
graphical view. A lot buttons are
offered on the tool bar, but some are
not quite often-used.
Simple interface, but it is not as
easy as OSATE concerning finding
certain functions or switching
between the code and diagrams.
Mark
3
5
Comparison, Analysis & Solution
COMPARISON: MORE SUPPORT ON MODEL ANALYZING (OSATE)
Comparison, Analysis & Solution
COMPARISON: MORE SUPPORT ON MODEL ANALYZING (STOOD)
Comparison, Analysis & Solution
COMPARISON: MORE SUPPORT ON MODEL ANALYZING
OSATE
STOOD
Schedulability
Analysis
Problem
Identification
Mark
2
5
Comparison, Analysis & Solution
COMPARISON: TECHNICAL SUPPORT
OSATE
STOOD
Manual
User manual offered together with
the eclipse platform
User manuals available with the
installation package
Tutorial
A complete tutorial for the previous
release with example available
Complete tutorial for STOOD 5.2,
which works well for STOOD 5.3
Example
Model
Several examples available online;
one detailed example with
instructions offered by SEI course
Examples available together with
the installation package.
Other
Resource
AADL community
Technical support from Ellidiss
Mark
3
1
Comparison, Analysis & Solution
COMPARISON: DOCUMENT & CODE GENERATION
OSATE
STOOD
Document
Generation
Document Generation not
supported.
Document auto generation
supported with the formation of
PDF, PS, Word, etc.
Code
Generation
Code generation not supported with
itself, but can be achieved using
Ocarina plug-in for Eclipse.
Can generate some basic C and
Ada code, but the code is not
completely functional and put
into use without modification.
Mark
7
3
Comparison, Analysis & Solution
COMPARISON: LOW ENTRY-COST
OSATE
STOOD
Price
Open source, free!
STOOD itself is a commercial tool.
Free trial version can be
downloaded, but it is limited to 10
hood without analysis support
offered with AADL Inspector.
Mark
1
6
Comparison, Analysis & Solution
ANALYSIS & SOLUTION
Category
Essential /
Critical
Important
Desired
Mark
No.
Criteria
Priority (Pi)
OSATE
STOOD
0
Modelling
1
2
4
1
Model Verification & Basic
Analysis
1
2
5
2
Easiness of Use
2
3
5
3
More Support on Model
Analyzing
2
2
5
4
Technical Support
2
3
1
5
Code & Document
Generation
3
7
3
6
Low Entry-cost
3
1
6
44
58
Conclusion
CONCLUSION
2
7 criteria
Test
Cases
NIH
Scoring &
Analysis
REFERENCES
[1] P. H. Feiler, D. P. Gluch and J. J. Hudak, "The Architecture Analysis & Design Language (AADL):
An Introduction“, Carnegie Mellon University, 2006.
[2] Carnegie Mellon University, "AADL | Tool Integrators |Toolsets | OSATE“, Carnegie Mellon
University, 2011. [Online].
Available: http://www.aadl.info/aadl/currentsite/tool/osate.html. [Accessed 2 2012].
[3] Ellidiss Software, "STOOD - Modeling Tools“, Ellidiss Software, 2012. [Online].
Available: http://www.ellidiss.com/stood.asp . [Accessed 2 2012].
[4] National Institute of Health, "Scoring System and Procedure“, Maryland, USA, 2008.
[5] Software Engineering Institute, "SAE AADL Example Models “, Carnegie Mellon University,
2011. [Online].
Available: http://www.aadl.info/aadl/currentsite/examplemodel.html. [Accessed 2 2012].
THANK YOU!