What is Systems Engineering?

Transcription

1 What is Systems Engineering? Systems Engineering for Train Control and Communications: People, Process and Product University of Birmingham, 14th April 2016

2 SE according to INCOSE The International Council on SE (INCOSE) defines SE as follows: an interdisciplinary approach and means to enable the realization of successful systems It focuses on defining customer needs and required functionality early in the development cycle, documenting requirements, then proceeding with design synthesis and system validation while considering the complete problem

3 SE according to INCOSE The International Council on SE (INCOSE) defines SE as follows: an interdisciplinary approach and means to enable the realization of successful systems It focuses on defining customer needs and required functionality early in the development cycle, documenting requirements, then proceeding with design synthesis and system validation while considering the complete problem

4 SE is a well-established discipline 1969 MIL-STD-499 "SE Management" issued 2003 LU Standard E1030 (now 1-209) issued SE training NCOSE ISO/IEC Underway formed at Bell Labs (later to issued become INCOSE)

5 SE helps to forestall systems problems A system is any combination of assets, equipment, people, procedures, software and data designed to work together for a common purpose A railway is a system Made up of many smaller systems

6 SE focusses on requirements and interfaces Requirements Interfaces Railway Requirements Requirements Requirements Requirements Train Track Station and many other things Interfaces

7 Myths and realities about SE Myth: SE is about connecting up computers Reality: SE may be thought of as the business of getting the parts of the railway to work together to do what we want them to

8 Myths and realities about SE Myth: SE is a welldefined discipline Reality: There are different views on precisely what SE is, which is distracting and inconvenient, but there is enough agreement to work with

9 Myths and realities about SE Myth: SE is just common sense Reality: SE provides proven and well-grounded methods and to put some common sense ideas into practice and a framework within which to apply them

10 Myths and realities about SE Myth: SE is something completely new to rail Myth : Rail projects have always done SE Reality: SE overlaps existing rail engineering practice but goes beyond it

11 Myths and realities about SE Myth: You can import conventional SE into rail unchanged Myth : Railway SE is something apart Reality: Railway projects should be prepared to adapt conventional SE approaches but only where there is good reason to deviate from established, proven methods

12 A standard framework for SE 1 Project Management Scope of ISO/IEC SE Good engineering practice Mechanical engineering Electrical engineering

13 A standard framework for SE 2 Technical Processes Business or Mission Analysis Stakeholder Needs and Requirements Definition System Requirements Analysis Architectural Definition Technical Management Processes Project Planning Project Assessment and Control Decision Management Implementation Integration Verification Risk Management Configuration Management Transition Validation Operation Information Management Measurement Maintenance Disposal QA

14 The V lifecycle Business or Mission Anal. Operation Maintenance Disposal Stakeholder Needs and Reqs Defn Verification Transition Validation Sys Req Anal Arch Defn. Implementation Verification Integration

15 The Rule of Ten to fix fault Time

16 Left-shift Rate of Expenditure Traditional Left shift Time

17 Concluding remarks SE offers a reservoir of good practice that has been proven in other sectors to address issues which can be problematic for railway projects, including: getting the requirements right managing interfaces avoiding disappointment with the performance of the finished project t The railway industry is accumulating an increasing amount of experience in adapting this practice and applying it successfully SE offers effective and applicable weapons in the struggle to deliver high-quality railway systems at reasonable cost 17

18 Questions Bruce Elliott Altran UK Limited 22 St Lawrence Street SouthGate BATH BA1 1AN Tel: Fax: Website:

19 Altran 2016 This presentation includes material previously published in a Railway Gazette article, Seven myths of Railway Engineering written by Bruce Elliott, Felix Schmid, Clive Roberts and Ian Shannon and in a training course prepared by Arbutus Technical Consulting. This material is re-used with the permission of the copyright holders.