The paper deals with a development of the rolling horizon approach introduced recently for grouping maintenance strategies of multi-component systems by integrating two efficient optimization algorithms. The proposed approach can help to construct an optimal maintenance planning with a given availability constraint under limited repairmen. Thanks to the rolling horizon spirit, the maintenance p...

Software architecture visualization tools tend to support browsing, that is, exploration by following concepts. If architectural diagrams are to be used during daily software maintenance tasks, these tools also need to support specific fact-finding through searching. Searching is essential to program comprehension and hypothesis testing. Furthermore, searching allows users to reverse the abstra...

Program comprehension as a subtask of software maintenance and evolution consumes about half of the time spent by the developers who have to explore a systems’ source code to find and understand the subset of the code which is relevant to their current task. The problems encountered during the comprehension process influence the time spent on program comprehension to a great extent. Although ma...

Software development and maintenance tasks rely on and can beneet from an increased level of program understanding. Object-oriented programming languages provide features which facilitate software maintenance, yet the same features often make object-oriented programs more diicult to understand. We support the use of program visualization techniques to foster object-oriented program comprehensio...

Software maintenance is typically the most expensive part of the software lifecycle, with program comprehension forming the most costly part of software maintenance. This paper outlines a method for assisting program comprehension by addressing the concept assignment problem. The method, termed Hypothesis-Based Concept Assignment, uses informal information contained within source code to reason...

OBJECTIVE To describe and interpret Danish Chiropractors' perspectives regarding the purpose and rationale for using MC (maintenance care), its content, course and patient characteristics. METHODS Semi-structured interviews were conducted with 10 chiropractors identified using a stratified, theoretical sampling framework. Interviews covered four domains relating to MC, namely: purpose, patien...

BACKGROUND Health insurers worldwide implement financial incentive schemes to encourage health-related behaviours, including to facilitate weight loss. The maintenance of weight loss is a public health challenge, and as non-communicable diseases become more prevalent with increasing age, mid-older adults could benefit from programs which motivate weight loss maintenance. However, little is unde...

Program comprehension plays a crucial role during the software-development life cycle: Maintenance programmers spend most of their time with comprehending source code, and maintenance is the main cost factor in software development. Thus, if we can improve program comprehension, we can save considerable amount of time and cost. To improve program comprehension, we have to measure it first. Howe...