This document appears to be a thesis proposal for examining brand design consistency (BDC) and category design consistency (CDC) in brand extensions. The introduction provides definitions of key terms and outlines the purpose and significance of studying how BDC and CDC impact consumer attitudes and purchase intentions toward brand extensions. The literature review covers relevant research on brand experience, brand extension strategies, and processing fluency theory. The methodology section proposes a mixed methods approach using case studies of Apple and Google, a pre-test study, and survey of undergraduate students to analyze the effects of BDC and CDC when extending the Google and Apple brands. The conclusions will provide implications for Google Glass as a brand extension and general strategies for successful brand extensions.