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ESoS 1 Loughborough University, 2012MEGS III Lecture: Henshaw Professor Michael Henshaw Loughborough University, UK Managing the systems lifecycle: systems engineering competencies and approaches
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ESoS 2 Loughborough University, 2012MEGS III Lecture: Henshaw Content Competency in Systems Engineering System lifecycles Standards ISO15288 the systems engineering lifecycle standard
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ESoS 3 Loughborough University, 2012MEGS III Lecture: Henshaw Systems Thinking for Energy CO 2 Bio Fuels for cars Increase Bio Fuel Production De - forestation Processing Food shortages Negative Behavioural Change Example from Geoff Robinson, of Atkins, Keynote at ieee SoSE 2010 Systems Thinking: Understand complex problems Explore wider set of options
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ESoS 4 Loughborough University, 2012MEGS III Lecture: Henshaw INCOSE Competency Framework Systems Thinking Systems concepts Super system capability issues Enterprise and technology environment Holistic Lifecycle View Determine and manage stakeholder requirements Systems design Architectural design Concept generation Design for... Functional analysis Interface management Maintain design integrity Modelling and simulation Select preferred solution System robustness Systems integration and verification Validation Transition to operation Systems Engineering Management Concurrent engineering Enterprise integration Integration of specialisms Lifecycle process definition Planning, monitoring and controlling
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ESoS 5 Loughborough University, 2012MEGS III Lecture: Henshaw Typical stages of lifecycle management Initiation Closing Planning & Design Execution Monitoring & Control
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ESoS 6 Loughborough University, 2012MEGS III Lecture: Henshaw Holistic lifecycle view Whole life costs Maintaining performance, safety, security, etc. Retaining knowledge of the system Upgrades Risks over time Disposal Image: Hunt Emerson
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ESoS 7 Loughborough University, 2012MEGS III Lecture: Henshaw A System Definition of a system A system is a construct or collection of different elements that together produce results not obtainable by the elements alone. The elements, or parts, can include people, hardware, software, facilities, policies, and documents; that is, all things required to produce systems-level results.......... (Rechtin, 2000). INCOSE definition (first part) Image: AP
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ESoS 8 Loughborough University, 2012MEGS III Lecture: Henshaw Systems Engineering and the Systems Life Cycle Standard 2.System Life cycles 1.Standards 3.System of interest 4.ISO15288 -scope -structure -use 5.Tailoring 6. Case studies 1.Systems Eng. and systems thinking 7.Limitations Required by Mindset and approach for Defines Constrains Applies std. Is an appropriate illustrates Requires Enables mgt of
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ESoS 9 Loughborough University, 2012MEGS III Lecture: Henshaw Standards - why they are important The need for standards and Systems Engineering
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ESoS 10 Loughborough University, 2012MEGS III Lecture: Henshaw Standards: Benefits and Applicability Benefits Safety Interoperability Quality Upgradeability Applicability Business Trade Technical Engineering Finance Etc.
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ESoS 11 Loughborough University, 2012MEGS III Lecture: Henshaw Application to project phases DesignOperation Manufacture Construction ISO IECASME SAEDINBSI ASTM ITU ASMEAPI ISO - International Standards Organization IEC - International Electrotechnical Commission ASME - American Society of Mechanical Engineers SAE - Society of Automotive Engineers DIN - Deutsches Institut für Normung eV BSI - British Standards Institution ASTM – American Society for the Testing of Materials ITU – International Telecommunications Union API – Application Programming Interface From ‘Why Standards are Important’, IHS Whitepaper, www.ihs.com
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ESoS 12 Loughborough University, 2012MEGS III Lecture: Henshaw Compliance Regulation A regulation is a legal requirement and compliance is, therefore, compulsory. A regulation is usually developed by Government and specifies what must be done, but without specifying how it must be done. Code A code is a standard (developed by an appropriate body) and adopted by a Government entity. Compliance is compulsory. Standard A specification of best practice developed by experts and based on consensus. It is recognised by an appropriate standards development organisation. Compliance is voluntary. Based on ‘Why Standards are Important’, IHS Whitepaper, www.ihs.com
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ESoS 13 Loughborough University, 2012MEGS III Lecture: Henshaw Part 4 – ISO 15288 Origin of ISO 15288 Application and characteristics of the standard Basic content of the standard
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ESoS 14 Loughborough University, 2012MEGS III Lecture: Henshaw Origin of ISO 15288 1960 1970 1980 1990 2000 2010 Increasing complexity Space systems Complex manufacture Software Military and civilian std. in US Std. In EU ISO 15288 (2002) ISO 15288 (2008) Software std. Systems context Emerging Standards
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ESoS 15 Loughborough University, 2012MEGS III Lecture: Henshaw Characteristics of 15288 (1) Product/service Although described as applicable to service systems, the language and approach is strongly product based Description Standard is a comprehensive list of processes for life cycle management, but none is specified in detail Cannot be used without tailoring High-tech. Organisations recognise the standard, but don’t usually seek rigid compliance
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ESoS 16 Loughborough University, 2012MEGS III Lecture: Henshaw Characteristics of 15288 (2) Uses As an outline framework from which organisation engineering and project management processes may be derived As a checking procedure for extant processes Level of compliance can indicate areas for process improvement Compliance is seen as meritorious, but not essential
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ESoS 17 Loughborough University, 2012MEGS III Lecture: Henshaw Significant INCOSE Publications based on 15288 INCOSE Handbook INCOSE 2010 systems engineering handbook, version 3.2. San Diego, CA, USA: International Council on Systems Engineering (INCOSE), INCOSE-TP-2003-002-03.2 INCOSE UK Systems Engineering Competency Framework INCOSE UK 2010
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ESoS 18 Loughborough University, 2012MEGS III Lecture: Henshaw Application Organisation Project Enterprise Enduring Long term Short term Single project General across all projects Enterprise Tailoring General/high level – slowly changing Procedures : Processes Processes Specific/detailed – as & when required Consistency
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ESoS 19 Loughborough University, 2012MEGS III Lecture: Henshaw Generic Lifecycle A system progresses through specific stages during its life In reality stages overlap Enabling systems are required at each stage All stages should be considered at design time and lifecycle features incorporated Concept stage Development stage Production stage Retirement stage Utilisation stage Support stage
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ESoS 20 Loughborough University, 2012MEGS III Lecture: Henshaw ISO 15288 Content Agreement Processes Acquisition Supply Organizational Project- Enabling Processes Life Cycle Model Mgt Infrastructure Mgt Project Portfolio Mgt Human Resource Mgt Quality Mgt Project Processes Project Planning Project Assessment & Control Decision Mgt Risk Mgt Configuration Mgt Information Mgt Measurement Technical Processes Stakeholder Req. Definition Req. Analysis Architecture Design Implementation Integration Verification Transition Validation Operation Maintenance Disposal System Life Cycle Processes Based on ISO/IEC, 2008 figure 4
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ESoS 21 Loughborough University, 2012MEGS III Lecture: Henshaw Agreement Processes Provides symmetric processes for supplier and customer Supply process Acquisition process Largely concerned with commercial matters Not necessarily executed by engineers Covers selection of or as supplier, acceptance criteria of product/service, financial arrangements
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ESoS 22 Loughborough University, 2012MEGS III Lecture: Henshaw Organizational Project-Enabling Processes Processes put underlying plan and resources in place Selection/creation of appropriate life cycle model provides underlying assumption for whole project E.g. CADMID underpins all UK defence acquisitions Creation and maintenance of appropriate infrastructure for project Note that different organizations have different definitions of infrastructure (buildings, communication channels, computer networks,...) Business decisions about portfolio of projects (sub-projects) Skills and human resources planned Quality procedures for project Note that these will often be defined at the organization level, rather than at the individual project level
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ESoS 23 Loughborough University, 2012MEGS III Lecture: Henshaw Project Processes Mostly concerned with project management Considerable overlap between systems engineering and project management Need to be consistent with standard project managment processes of the organization Standard distinguishes between Project management and project support Management: planning and assessment/control Support: decision, risk, information, measurement, and configuration control
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ESoS 24 Loughborough University, 2012MEGS III Lecture: Henshaw Technical Processes Focused on classic Systems Engineering aspects Vee-model Stakeholder analysis and Requirements Design (architecture) Implementation and Integration Verification, Transition, and Validation Operation, Maintenance Disposal
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ESoS 25 Loughborough University, 2012MEGS III Lecture: Henshaw (Typical) Vee-Model Concept of Operation Requirements Architecture Detailed Design Implementation Integration Test, and verification Systems Verification Validation Operation & maintenance Verification and Validation Project Definition Project test & integration Time
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ESoS 26 Loughborough University, 2012MEGS III Lecture: Henshaw (Typical) Vee-Model + 15288 Technical Processes Concept of Operation Requirements Architecture Detailed Design Implementation Integration Test, and verification Systems Verification Validation Operation & maintenance Verification and Validation Project Definition Project test & integration Time Stakeholder Req. Definition Requirements analysis Architecture Design Implementation Integration Verification Transition Validation Operation Maintenance Disposal
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ESoS 27 Loughborough University, 2012MEGS III Lecture: Henshaw Use To some extent, ISO 15288 represents the collation of good practice Organisations that develop complex systems may have procedures and processes that follow 15288 implicitly Compliance may be advised but rarely (never?) compulsory
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ESoS 28 Loughborough University, 2012MEGS III Lecture: Henshaw Limitations: SoS Properties - Emergence Emergence is a phenomenon ascribable to the whole system and not to any of its individual parts. Some maintain it is only applied to something that has not been predicted, others that it may be either planned or unexpected Traditional systems engineering; well understood subsystems etc.; V&V Components Subsystems Systems Desirable properties are designed to emerge Desirable/ predicted Desirable/ unpredicted Undesirable/ unpredicted Systems of systems engineering; incomplete knowledge of interactions, complexity, strong emergence
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ESoS 29 Loughborough University, 2012MEGS III Lecture: Henshaw Managing and Engineering Members of the SoS owners’ club have partial knowledge and influence Need to engineer for compliance (interoperability) Standards Manage own system (part) through control Manage other parts of SoS through influence, protective measures, collaboration, … (not at all) If systems thinking tells us that we should make our systems behave in certain ways to maximise benefit, why don’t we do it? From the single-system community’s perspective, its part of the SoS capability represents additional obligations, constraints and complexities. Rarely is participation in an (sic) SoS seen as a net gain from the viewpoint of single- system stakeholders. George Rebovich, Jr., 2009
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ESoS 30 Loughborough University, 2012MEGS III Lecture: Henshaw Table 1. SE versus SoSE Traditional SE versus SoSE From Neaga Henshaw and Yue, 2009 SoS
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ESoS 31 Loughborough University, 2012MEGS III Lecture: Henshaw Limitations of the Standard What worked in the past will not always work in the future.
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ESoS 32 Loughborough University, 2012MEGS III Lecture: Henshaw Systems Engineering New publication available: Guide to the Systems Engineering Body of Knowledge (SEBoK) at http://www.sebokwiki.orghttp://www.sebokwiki.org
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ESoS 33 Loughborough University, 2012MEGS III Lecture: Henshaw Back-up slides
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ESoS 34 Loughborough UniversityISO 15288 Lectures: Henshaw Example of use Large defence related organisation has recently carried out a skills audit using the INCOSE Competency Framework This provides health check for systems engineering skills and marketing information for use with clients
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