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          Where: SDC is the Static Defect Count per severity.

Application Architecture

Ideally, software can be easily modified, is understandable, reliable and reusable. In practice, this often remains an ideal and over the course of time the software becomes increasingly rigid, opaque and fragile. In many cases the underlying cause is that the dependency structure of the software degrades over time.

A study by Dan Sturtevant investigated the impact of software dependencies on defect rate, productivity and staff turnoverThe Application Architecture gives you a roadmap and best practices to follow when building an application, so that you end up with a well-structured app. Quality Reviewer is able to create a Design Structure Matrix (DSM) and a Call Graph, by reading the source code and/or related UML diagrams.

DSM-Design Structure Matrix

An example of Quality Reviewer’s automatically generated Design Structure Matrix is shown below:

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A Design Structure Matrix consists of a matrix to visualize Dependencies of hierarchically organized elements and a set of algorithms which can be applied on the matrix to sort the elements in order to discover layering.

An example of Quality Reviewer’s automatically generated Design Structure Matrix is shown below:

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A Design Structure Matrix (DSM) consists of is made by two parts

• A matrix to visualize dependencies

• Algorithms which can be applied on the matrix to discover e.g. layering in the software.

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