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Project NameSystem and Service Architecture

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Table of contents:

1 INTRODUCTION.........................................................................................42 OVERALL SYSTEM ARCHITECTURE....................................................................43 DESIGN AND DEVELOPMENT PLAN...................................................................54 DESIGN JUSTIFICATION FILE...........................................................................5Design Justification Form #1 - Item or area concerned........................................................6Design Justification Form #2 - Item or area concerned........................................................6

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1 INTRODUCTIONThe System and Service Architecture (SSA) is dedicated to defining and specifying theoverall pilot system starting from the high level architecture down to its building blocks.The SSA shall describe types of applications, targeted user groups, extent of developmentand/or integration of hardware, software and content elements and choice of the mostappropriate system to be used in the project.

1.1 Reference Documents

Ref. Document ID. Title Rev.

1.2 Acronyms

Tag DescriptionSSA System and Service Architecture

2 OVERALL SYSTEM ARCHITECTURE

This section shall include a presentation of the overall system architecture, broken down into its key subsystems (typically one or more diagrams), with associated description of these subsystems, their roles, data/information flow among them, main interfaces (internal and external) and protocols, as relevant. A specific emphasis should be given to the elements which will be developed, customised, integrated in the framework of the project

This section shall also clearly point out the strategic role of the satellite component/s in the proposed system compared to potential alternatives.

The SSA shall provide a provisional list of the sites (or areas, if related to mobile units) where the system will be installed for the pilot utilisation.

Within the SSA, the Contractor shall clearly indicate the source of procurement for the different elements (e.g. purchase of commercial products (COTS), loan from partners or sponsors,

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This document is intended to serve as guideline for preparing the System and Service Architecture document in the frame of an ARTES Applications Project.

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developments performed within the contract) and the associated economic value, and whether they are long lead items.

3 DESIGN AND DEVELOPMENT PLAN

Projects addressing development of hardware and/or software shall include a design and development plan to illustrate in a concise and conceptual manner the logical execution of the proposed development activities. It shall define and include decision points upon which the course of the development will depend, together with the relevant quality standard and procedures, where applicable.

4 DESIGN JUSTIFICATION FILE The SSA shall include the Design Justification File (DJF) documenting and detailing the trade-off processes performed to justify the design choices, and the associated design documents. This will apply to either elements to be developed or elements that need to be selected from already available solutions.

The following template provides the explanation of the different line items (which are generic to allow these forms to be used in different hardware and software areas):

Item/Area: Item or area Date: Self explanatoryDesign Choice: Statement of the issue that leads to design choicesSolution: Proposed decision i.e. proposed best solution to the design decisionAlternatives: Alternative solutions considered and reasons for non-selection (these should

be supported by analyses in the appendix)Impact: Impact on other parts of the developmentComment: Other relevant informationAnalyses: In appendix.

Note: the above line items should be modified to reflect the needs of your project, company procedures, etc.

Examples of the Justification Forms are given below.

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Design Justification Form #1 - Item or area concerned

Item/AreaDateDesign ChoiceSolutionAlternativesImpactCommentAnalyses

Design Justification Form #2 - Item or area concerned

Etc.

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