The goal of the study was to evaluate the content, implementation and applicability of the Soul City social intervention programme (SCI programme) about HIV and AIDS targeted at the youth in the Northern Cape from an ecosystems perspective. The goal of this study was achieved through the realisation of the objectives of the study. The objectives of the study were: To describe the phenomenon of HIV and AIDS among the youth in the Northern Cape, South Africa from an ecosystems perspective; to describe the NSP 2012-2016 and the Provincial Strategic Plan (PSP) for HIV and AIDS in South Africa; to describe and critically analyse the SCI programme's focus on the youth from the ecosystems perspective; to evaluate the content of the SCI programme for the youth with regard to HIV and AIDS in the Northern Cape in the context of the NSP 2012-2016 on HIV and AIDS from the field workers' perspective; to evaluate the implementation of the SCI programme for the youth on HIV and AIDS in the Northern Cape in the context of the NSP 2012-2016 on HIV and AIDS from the perspective of the youth as service users, and lastly, to provide guidelines for the content, applicability, implementation, monitoring and evaluation of the SCI programme for the youth with regard to HIV and AIDS in the context of the NSP 2012-2016, in order to enhance efforts to mitigate the impact of HIV and AIDS among the youth in the Northern Cape. Furthermore, a mixed-methods research approach was adopted to achieve the research goal. The quantitative and qualitative findings are described in Chapters 6 and 7 respectively. Triangulation, as mixed-method design, was utilised in this study. This enabled the researcher to produce complete and well-validated conclusions. The method of data collection for the part of the study about the youth was a group-administered questionnaire. For the qualitative part of this study, semi-structured interviews, with an interview schedule, were utilised to collect data related to the contents, applicability, implementation, monitoring and evaluation of the SCI programme from trained field workers working in the youth sector and specialising in HIV and AIDS. The quantitative data was analysed using both descriptive and association statistical analyses. In the present study, the researcher strived to ensure a high degree of face validity by allowing experts in the field, for example, social workers practising in the field of HIV and AIDS, to scrutinise the research instrument as part of the pilot test. The questionnaire was piloted with 20 youths to enhance both face and content validity further. In the current study, an acceptable degree of reliability was prioritised and therefore a Cronbach alpha coefficient of 0.70 for all categories of the questionnaire was sought. The qualitative data of the semi-structured interviews with Soul City programme implementers was analysed using thematic analysis. An independent reviewer reviewed the theme generation and analysis to ensure consistency or the interrater reliability of the findings. This aided the researcher to identify patterns or themes from direct quotations and to provide rich data representation. Verbatim quotations from the interviews were used to support the themes. To ensure data trustworthiness, a high premium was placed on credibility, transferability, conformability and dependability. Analyses of three different sources of data, namely the literature review, the youth programme attendees/recipients and interviews with Soul City field workers were undertaken to answer the following research question. "To what extent is the content and implementation of the Soul City social intervention programme applicable to the youth in the Northern Cape?" Subsequently, the sub-question of the study was: "Does the Soul City social intervention programme take the different levels of the ecosystems perspective into account regarding programme content and implementation?" Several key findings were made in the quantitative part of the study, with nine sections of the questionnaire which focussed on: the Biographic details of respondents; Objectives of the Soul City programme for the youth in the Northern Cape; Applicability and relevance of the content of the Soul City Programme; Knowledge gained through attending Soul City; Attitudinal change; Programme delivery; Programme content; Programme facilitation methods and general aspects. Key findings were that there was no statistical association found between any of the variables in most sections of the questionnaire except for combinations of five questions in sections D and G. There was a statistical association found with regard to age where the respondents indicated that the SCP contributed to them achieving their personal life goals. Also in Section D there was a statistical association found where the respondents could see the impact of the SCP on their lives. There was a statistical association found between where respondents indicated that the SCP should focus on ways/strategies to fight poverty in their communities and also when they indicated that the SCP should focus on involving important people/stakeholders such as youth leaders. Lastly, there was a statistical association found between where the respondents indicated that the capacity of the youth in the community to fight the further spread of HIV and AIDS could be built by visiting the community. From an ecosystems perspective, the SCP programme appeared to be influenced by or aligned to micro-, meso-, exo- and macrolevel factors with varying degrees of success and focus areas. The programme's exolevel focus appeared to be more prominent and to a lesser degree the macro- and microlevels. The research found that the SCP is relatively effective regarding programme content and facilitation methods albeit to a limited degree. Furthermore, what was repeatedly clear was a need for the SCP's programme continuation and sustainability, because adequate effort had not been made for this despite the programmes' apparent value when it was operational.