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Systems Engineering

Pedigree

Altran Praxis provides systems engineering support to clients in the aerospace, rail, automotive and other industry sectors. Praxis treats all problems as systems engineering problems and makes use of Lean Systems Thinking in solving them. Lean Systems Thinking brings together Lean Engineering and Systems Thinking.

Praxis offers a range of systems engineering services. Services typically operate at the organisation, programme, or technology level. Clients have ranged from small start-ups to major multinationals and cross-industry bodies. We have helped clients:

  • Manage the risks of major technological and organisational changes.
  • Manage requirements in support of high-end consumer product development.
  • Develop requirements and designs for systems ranging from single components up to an entire railway.
  • Carry out end-user and device context analysis through to end-user testing and product release.
  • Establish verification and acceptance strategies for multi-billion pound programmes.

Focus

Our major goal is to support programmes where the impact of failures is a major concern; typically this means projects exhibiting the following factors:
  • New or innovative technology.
  • New organisational structures.
  • Stringent regulatory requirements.
  • Potential significant safety, security or environmental impact.
  • Diverse or an ill-defined sets of stakeholders.
  • Unclear, conflicting or highly demanding requirements.
Praxis also ensures it contributes to the advancement of the wider systems engineering community through participation in conferences and the generation of whitepapers.

Approach

Praxis adopts a common approach to solving client problems embodied in our High Impact Solving technique. This is underpinned by the fundamentals of Lean Systems Thinking which provide a common theme throughout our work:
  • Clear requirements and concepts of operation define value, which is dependent on the environment and domain.
  • Rich traceability and accurate information models support the value stream.
  • Processes and verification activities are defined to avoid waste and promote flow.
  • Customer pull is supported by flexible processes and effective management of change.
  • Accurate and independent reporting promotes improvement and perfection.

Example Systems Engineering projects

All projects are complex, novel or high impact.
  • Defined end-to-end integration strategy for IT systems in Heathrow T5.
  • Developed a requirements validation model for a defence aircraft control system in Matlab™.
  • Helped establish a requirements management process for railway UIC Euro-Interlocking.
  • Carried out operational risk analysis and assessment for a key UK financial organisation.
  • Completed full requirement lifecycle management for an automotive infotainment system.
  • Led the specification and design teams for a new GSM train radio system, using UMLTM and Fusion.

Why Altran Praxis for Systems Engineering?

  • Our use of Lean System Thinking can reduce programme cost, risk and duration.
  • Praxis’ wide cross-industry experience allows lessons learned in many environments to support any programme.
  • Mature techniques from high-assurance programmes make transparent, repeatable and auditable risk management available in a wide range of markets.
  • Our approaches scale from small product developments through high volume consumer products to major infrastructure programmes.

Case reference

Requirements support for the West Coast Route Modernisation

Altran Praxis Systems case image

Challenge

The Systems Engineering Group of the UK’s West Coast Route Modernisation railway programme needed a major change in their requirements management process to account for significant changes in the programme scope. Existing design justifications traceability had been developed and maintained over more than five years; a pragmatic approach was required to support the delivery and acceptance case with very short timescale.

Engagement and approach

A team of Praxis consultants worked alongside the client’s functional and domain experts to define and populate a requirements model in DOORS™, and provide long-term support.

Outcome

We provided input into the new traceability model and produced the traceability and design justification; 58 per cent of the new traceability and design justification was established in just two months.

Capabilities

Enterprise architecture

Understanding and organising the processes and business logic of an organisation is a key foundation for improvement and extension, using approaches such as MODAF and DODAF. Praxis is able to build and maintain Enterprise Architecture models.

Concepts of operations

Early support in identifying stakeholders and extracting requirements helps customers avoid expensive mistakes. Praxis is able to elicit, specify and maintain concept of operations documents.

Requirements management

Our REVEAL™ approach helps to capture, organise and control change to requirements – from system objectives down to individual components or products. Praxis can train client requirements engineers, carry out elements or the entire requirements management activity and provide support in tool use and customisation.

Architectural design

Capturing requirements and major design decisions in a suitable architectural framework provides support for lean delivery. Praxis can undertake architectural design work.

Modelling

Praxis can develop and maintain models using a range of tools (including UMLTM and executable frameworks such as MatlabTM/Simulink™) in order to carry out requirements validation, design verification and product specification.

Integration, test, evaluation and acceptance

Showing that a system meets its objectives can be complex. Praxis can plan, execute and manage integration, test, evaluation and acceptance activities that help define integration and verification strategies that deliver cost-effective evidence.

Operational risk management

Techniques developed for safety- and security-critical systems help identify and control risks of all types – financial, reputational or political – during any change or reorganisation. We can undertake operational risk assessments and advise on operational risk reduction.

Whole life support

Many capabilities are now delivered by whole life service agreements rather than a one-off product purchase. New governance and control mechanisms are necessary to develop long-term confidence. Praxis can consult on whole life issues.

"We identified that a REVEAL™ - based process could give us an improved probability of contract win".
Client Project Manager.