During the software architecture design process, you will want to keep track of the design's progress. Keeping track of progress enables you to know how much of the design work is complete, and how much of it remains. The remaining work can be prioritized, assisting software architects in determining what should be worked on next. In addition to tracking progress, it serves as a reminder of design issues that are still outstanding, so that nothing is forgotten.
The technique that management will want to use to track progress really depends on your project, software development methodology, and the organization. If you are using an agile methodology such as Scrum, you may be using product and sprint backlogs to track progress.
