Abstract
Traditional Human System Integration (HSI) processes are at risk of being eliminated given the industry driven velocity and continuous delivery methods of Agile and Development to Operations Engineering. One such process at risk is usability standard checklists like MIL-STD 1472. The DoD Design Criteria Standard—Human Engineering, or MIL-STD 1472 is a military standard that provides guidelines for the ergonomic design of military systems and equipment. It is primarily focused on ensuring that military systems are designed to optimize human performance, safety, and comfort. However, it can be time-consuming to use given that it contains over 4,400 compliance items in its entirety. In an Agile DevOps environment, the typical delivery of products is 2 weeks with some software products boasting deployments every 11 min. Incorporation of usability and rigorous human factors checklists in the design of products using a DevOps environment is a challenge given the shorter timelines and smaller increments between product development and deployment combined with the expertise and hours needed to execute the checklists. The need for regression testing, the act of re-checking items to make sure new features have not created unforeseen usability issues, exacerbates the problem. Software quality testing for each release demands automatic methods to reduce the efforts of recursive testing. Industry standard methods in agile engineering utilize heuristics for quick turn low-cost usability inspections. This paper describes the derivation of a set of usability heuristics based on MIL-STD 1472 which can be used to identify potential human factors issues more quickly, with less cost, and reduced amount of expertise required. The paper also gives an example of a case study which incorporated automatic checking to support usability experts keeping pace with the high velocity pipelines of software development in an agile DevOps environment.
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