Maintaining a software system resembles renovating a house: it usually takes longer and costs more than planned. Similarly to a house owner identifying potential problems before renovation, a software owner should assess maintainability of software before renovating or extending it. To measure maintainability one often applies metrics, associating software artifacts with numbers. Unfortunately,...

The use of object-oriented design patterns in game development is being evaluated in this paper. Games’ quick evolution, demands great flexibility, code reusability and low maintenance costs. Games usually differentiate between versions, in respect of changes of the same type (additional animation, terrains etc). Consequently, the application of design patterns in them can be beneficial regardi...

Maintainability is an important general quality characteristic of products. Insufficient maintainability will lead to long maintenance time and high cost, thus affecting the availability verification means ensure meets design requirements. However, cost traditional real method very high, virtual has insufficient accuracy due lack large force feedback when human body moving. In order reduce eval...

Over the last decade, several authors have studied the maintainability of software architecture. In particular, the assessment of maintainability has received attention. However, even when one has a quantitative assessment of the maintainability of a software architecture, one still does not have any indication of the optimality of the software architecture with respect to this quality attribut...

In the software development life cycle, maintenance is the most costly activity because it requires more effort compared to other activities. To reduce the cost of software maintenance, it is essential to predict software maintainability during the early phases of software development. As a consequence of early estimation, further corrective and preventive actions can be performed more efficien...

Maintainability is one of the most significant quality indicators. Its accurate measurement constantly support and increase the maintenance procedure. An accurate measure of software quality completely depends on maintainability measurement. A number of maintainability theories have been published till date and the maintainability concept has been developed with different research states. At th...

Both for software developers and managers it is crucial to have clues about different aspects of the quality of their systems. Maintainability is probably the most attractive, observed and evaluated quality characteristic of all. The importance of maintainability lies in its very obvious and direct connection with the costs of altering the behavior of the software. In this paper we present an e...

Lack of a commonly defined maintainability model hinders us from evaluating and certifying products with respect to maintainability. We cannot compare different products within and across organisations. We have difficulties to evolve and maintain software. We cannot try new development paradigms and evaluate their effects on product maintainability. We have no commonly defined maintainability m...

The nonfunctional requirements (NFR) are often captured only generically at a fairly high level, and they do not include the levels of detail necessary at this stage for the system engineers to allocate them as specific functionalities to be handled either by the software or the hardware, or a specific combination of the two. The European Cooperation for Space Standardization (ECSS) series of s...

Maintainability is an increasingly relevant quality aspect in the development of object oriented software systems (OOSS). It is generally accepted that OOSS maintainability is highly dependent on the decisions made early in the development life cycle. Conceptual modelling is an important task of this early development. So that the maintainability of conceptual models have a great influence on t...