BTEC National for IT Practitioners: Systems Units has been written specifically to cover the systems pathway of the BTEC National specifications. This book caters for one of the most popular pathways in the BTEC National specifications, bringing together all the key specialist units for students who have chosen the systems route, including the core units specific to this pathway that aren't covered in the core unit book. When used alongside its companions for the core units and business pathways, this series delivers the most accessible and usable student textbooks available for the BTEC National. Units covered: Unit 11 – Data Analysis and Design Unit 22 – Network Management Unit 13 – Human Computer Interaction Unit 28 – IT Technical Support Unit 16 – Maintaining Computer Systems Unit 29 – IT Systems Troubleshooting and Repair Written by an experienced tutor, each unit is illustrated with assessment activities, end-of-chapter questions, case studies and practical exercises. The result is a clear, straightforward textbook that encourages independent study and acts as a reference to various topics within the qualification.