You should consider "works like" and "looks like" prototypes (which may correspond to back-end and front-end here, and a thin "spike" all the way through ASAP.
In other words there should probably be a number of shards tackled at once to help ensure that you haven't omitted something critical from the design.
Comments
You should consider "works like" and "looks like" prototypes (which may correspond to back-end and front-end here, and a thin "spike" all the way through ASAP.
In other words there should probably be a number of shards tackled at once to help ensure that you haven't omitted something critical from the design.