How do I address research gaps in my Thesis (Research article)?
I have not written an expansive issue such as a Ph.D paper or article. But here is how I would approach the problem:


Identify the current literature on the topic in question, in effect a literature review. Is the gap even a gap? Was there discussion in the past, but not now? Depending on your findings then you can claim that 



  Based on my findings, I believe that there is a gap based on the following...



How would you approach in measuring/defining/articulating this gap? Is this a conceptual gap that is not discussed in detail, therefore there is not sufficient interest in it, or it was stipulated as a closed-case?



  Based on John Smith, et.al, this [topic] was discussed in length and defined as the following... using these metrics I introduce an alternative means of measuring its effects and impact on the field...



What do you ultimately wish to do once you identified the problem? Procure more research funding, collaborate with experts?