Spreadsheets are widely used in industry, because they are flexible and easy to use. Often, they are even used for business-critical applications. It is however difficult for spreadsheet users to correctly assess the maintainability of spreadsheets. Maintainability of spreadsheets is important, since spreadsheets often have a long lifespan, during which they are used by several users. In this p...

Maintainability and flexibility at the software level are of predominant importance to drive innovation at the business process level. However, existing definitions of maintainability, such as the Halstead Volume, McCabe's Cyclomatic Complexity or the SEI maintainability index provide a very poor understanding of what maintainability is how it can be assessed and ultimately controlled. This pap...

This paper investigates how maintainability can be established in system integration (SI) projects where maintainers have no direct access to the source code of the third-party software being integrated. We propose a model for maintainability in SI focusing on postrelease activities, unlike traditional maintainability models where focus is on pre-release activities. Our model describes maintain...

Good maintainability is an essential feature for machines and processes in industry. It promotes, among others, maintenance safety, postmaintenance reliability and cost-effective maintenance by ensuring quick and easy operation and short downtime. Virtual engineering tools provide an effective way for maintainability design already during the design phase. Machine designers may not consider mai...

A strong focus on quality attributes such as maintainability and ¯exibility has resulted in a number of new methodologies, e.g., object-oriented and component-based design, which can signi®cantly limit the application performance. A major challenge is to ®nd solutions that balance and optimize the quality attributes, e.g., symmetric multiprocessor (SMP) performance contra maintainability and ¯e...

It is generally accepted that the quality of the information system (IS) is highly dependent on decisions made early in the IS development. Conceptual data model is a key artifact built at the early phases of the IS life cycle, therefore its quality influence on the quality of IS which is finally implemented. We focus this paper on the maintainability of conceptual data models, because it is on...