This paper is a case study of capacity strengthening activities carried out at the Agricultural Research Corporation in Sudan between July 2008 and March 2011. These activities were undertaken through the project ‘Strengthening Capacity for Agricultural Research and Development (SCARDA)’ which was implemented in the East and Central Africa region by the Association for Strengthening Agricultural Research in East and Central Africa.

The quality of rural extension and advisory services is a crucial element in fostering innovation and rural development. This article aims to clarify the concept of quality of rural extension and to develop a preliminary theoretical framework. An ample literature review was conducted in search of articles on service quality and quality of rural extension and advisory services. The first part presents the main results of the literature search on quality of extension services. The definition of quality is not universal.