Clearly a structured life cycle is needed.
Hans-Juergen Kugler's List: software development
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Software Development - Discipline and Lifecycle Required
Software development is complex because it ties various other engineering elements together. A disciplined approach is required.
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Oct 12, 09
This cartoon describes one of the core problems of software development: different mental models between the various stakeholder groups.
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Software Development Lifecycle
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Click the "full" button at the right bottom corner of the slide.
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- This cartoon describes one of the core problems of software development: different mental models between the various stakeholder groups. - Hans-Juergen Kugler on 2009-10-12
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Oct 12, 09
The problems of software development can only be tackled by a consistent, structured approach that allows\n- the different stakeholders to understand each other\n- the development and its various stages to be transparent and traceable
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IEEE 12207
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The problems of software development can only be tackled by a consistent, structured approach that allows
- the different stakeholders to understand each other
- the development and its various stages to be transparent and traceable
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Oct 12, 09
The following reference is to a presentation that outlines the CMMI, why it is needed and what its benefits can be.
It also leads into agile development.
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Oct 12, 09
Complete overview description of the CMMI. Initial sections provide good overview. Emphasis on need to tailor to the organisation concerned. Introduction to agile concepts at the end.
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CMMI Crash Course with Agile Concepts
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Complete overview description of the CMMI. Initial sections provide good overview. Emphasis on need to tailor to the organisation concerned. Introduction to agile concepts at the end.
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Agile Software Development
Agility does not mean "no discipline" - agility refers more to the rapid application cycles.
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Oct 12, 09
Good introduction to agile development, its manifesto and the practices.
The comments about "heavyweight" techniques are really motivated by the fact that approacheas like the CMMI are often building a "process fortress" rather than a lightweight extensible framework.
A can be seen from this presentation the agile approach still is very structured and very disciplined. Iterative development is emphasised, 4-eyes principle, and integration and testing.
Here we are back to the framework standards.-
Intro to Agile
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Good introduction to agile development, its manifesto and the practices.
The comments about "heavyweight" techniques are really motivated by the fact that approacheas like the CMMI are often building a "process fortress" rather than a lightweight extensible framework.
A can be seen from this presentation the agile approach still is very structured and very disciplined. Iterative development is emphasised, 4-eyes principle, and integration and testing.
Here we are back to the framework standards.
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Keys to Making CMMI and Agile Compatible
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Back to linking CMMI and Agility
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Oct 12, 09
Good overview and examples.
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Agile experiences inside a Global Company
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Oct 12, 09
Yet another concept: "lean". Whilst agility is about rapid iterations, "lean" is about avoiding waste, and therefore limiting the amount of rework.
Lean software development applies more to philosophy, practices and attitudes among the developer stakeholders, than to any of the statistical/mathematical techniques. Here we are looking at the behavioural patterns that make up good processes and that will - in the long run - amenable to the six sigma and other techniques for optimisation.
The following reference is to a site containing significant amounts of good material concerning lean software development.
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Oct 12, 09
The Poppendieck LLC site is one of the best resources concerning the merger of lean concepts, agile software development and disciplined software engineering.
The centre piece is the page about principles - which should be the basis for all policies in development organisations.-
Lean Software Development
Deliver Value Quickly, Efficiently, Reliably - Every Time-
The Poppendieck LLC site is one of the best resources concerning the merger of lean concepts, agile software development and disciplined software engineering.
The centre piece is the page about principles - which should be the basis for all policies in development organisations.
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Principles
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This set of principles should be the core of all development organisations.
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These principles marry lean and disciplined (traditional) approaches.
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Model-Based Software Development
Model-based development means - as the name suggests - to build a model of the system under construction, or of parts or views thereof, such as safety. In most engineering applications these models are mathematically based. Statistical models are in use in social applications, and derivative yield models, for instance, for finance.
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Oct 12, 09
Example for modelling properties of systems
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Oct 12, 09
Good introductroy example to the role model based development is starting to play, here in the transportation industry.
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Model-Based Approaches for Railway Safety, Reliability and Security
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Good example of how models are used for guiding the development of non-functional properties of systems.
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Oct 12, 09
In this section mathematics-based modelling an corresponding tools are presented.
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Oct 12, 09
Overview of the most widely used tool in engineering and science software development applications.
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MathWorks Product Overview
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MATLAB® is a high-level technical computing language and interactive environment for algorithm development, data visualization, data analysis, and numeric computation. Using the MATLAB product, you can solve technical computing problems faster than with traditional programming languages, such as C, C++, and Fortran.
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User Stories
Find out how users like you rely on Simulink to solve difficult problems
and accelerate research and development.
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Oct 12, 09
In this section the link from modelling to model-based architecture is made. Software architecture is introduced as a new concept. AUTOSAR uses this to structure vehicle architectures to achieve compatibility and thus complexity reduction in industry.
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AUTOSAR (Automotive Open System Architecture) is an open and standardized automotive software architecture, jointly developed by automobile manufacturers, suppliers and tool developers. It is a partnership of automotive OEMs, suppliers and tool vendors whose objective is to create and establish open standards for automotive E/E (Electrics/Electronics) architectures that will provide a basic infrastructure to assist with developing vehicular software, user interfaces and management for all application domains. This includes the standardization of basic systems functions, scalability to different vehicle and platform variants, transferability throughout the network, integration from multiple suppliers, maintainability throughout the entire product lifecycle and software updates and upgrades over the vehicle's lifetime as some of the key goals.
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AUTOSAR-standard enables the use of a component based software design model for the design of a vehicular system
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Oct 12, 09
ETAS paper about AUTOSAR approach.
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Model-based Development of Autosar Application Software
Today, control algorithms of electronic in-vehicle functions are implemented on networked control units with differing software architectures. Special effort is needed when integrating software components from different sources, which limits the reusability of automotive embedded software. This Etas paper focuses on the advantages of model-based development and describes the reengineering of an engine management system as an example.
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Oct 12, 09
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The MathWorks and Vector Integrate Tools for Model-Based Design and AUTOSAR Applications
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Software Product Lines
Systematic development of lines or families of software products - this requires a really disciplined organisation with development and domain experience.
Few companies have reached proficiency here (e,g, Bosch). -
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Software Product Lines
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