network cases studies

This post is also available in: Français (French)

The following case studies presented here, in summary, are the result of systems analysis based on the world as system, or black box principle, which suggests that any system can be analysed as long as its boundaries are established and any assumptions stated.

dependency on systems

Transport management database

The transport systems analysis came from a project to build a relational database for a transport association which transports people in financial difficulty, in return-to-work situations, with social problems, or mobility impaired workers on low wages.

overview of transport management system
Overview of the transport management system model

Service Site Model

The service site model analysis represents business relationships where parties both register their demand and the supply. This allows the database at its heart to evaluate both demand and supply and thus operate a system to match one with the other.

The Water Distribution System

The analysis of the water distribution system aims to model a water system starting from source (rain) to a valley system and out onto the sea. It considers this most integrated of natural systems as describable with discrete system boundaries.

overview of the water system
Overview of the water distribution systems analysis model

Model of the French Social Security System

The French social security system is quite visible to users and lends itself well to analysis. We examine the physical and financial relationships between users and professionals, and some consideration of independent but integrated actors such as pharmaceutical companies.

health care use cases
Health care use cases

The Compuprod Case Study

The Compuprod case study deals with the analysis of relationships between actors across the supply chain and discusses some of the justification for transversal systems such as an ERP and the information requirements of actors.

overview of compuprod case study
Compuprod systems analysis model about transversal communication

Informal Information Systems

The informal information systems model postulates that we can distinguish between formal and informal information systems in a business environment. In short, while systems analysis can model formal systems, there also exist multiple barely visible informal systems largely based on verbal communication systems.

formal and informal information systems
Analysis of informal systems that surround the formal information system


These models are part of an attempt to model systems, to demonstrate that systems can be modelled and that to do so requires both visual language, written word and human interaction. The systems documented here are as observed on the principle of the world as a system.

Most of these systems diagrams were built with Enterprise Architect from Sparx Systems.

By marklewis

Mark Lewis is an Access developer, business analyst turned technical translator, fluent in French and English

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