In order to develop LATIST, a usage-centered design process was used to focus on user needs and develop a tool that allows users to fulfill their needs in an easy, effective, and efficient way (Constantine & Lockwood, 1999). Through content and task analysis, user needs were determined, tasks necessary to obtain optimal benefit from LATIST were identified, and content requirements were established based on projected user scenarios and use cases. As a result, the specifics of the content and functionality of the three LATIST components were determined.
Additionally, the results of the content and task analysis revealed that LATIST would best be utilized as an electronic performance support system (EPSS). An EPSS is an easily accessible, integrated electronic environment that provides immediate, individualized support so an employee can perform their duties with minimal intervention by others (Dickelman, 2004). A performance support subject matter expert recommended that for maximum effectiveness, information in LATIST should be explicit, accessible, and usable and confirmed that the three components of LATIST represented a successful integration of process and knowledge. Hence, LATIST would be browser-based, quickly accessible from the internet, and mobile compatible. LATIST capabilities would allow users to print, save, search, rate, upload, and share content and intuitively navigate across the components based on a selected technology. Given these characteristics, a Content Management System was used to develop LATIST. Based on these requirements and discussions with DAU stakeholders and information technology specialists, the CMS WordPress was selected to build the core framework for LATIST. WordPress is an open-source blog publishing CMS application powered by an open-source server-side scripting language known as Hypertext Preprocessor (PHP) and by MySQL – a relational database management system that can also be used for content management.
LATIST navigation was designed to be intuitive and to address these four focal use cases:
- a user who is not familiar with what technology can do in a teaching and learning context and wants to review what the research says about technology
- a user who has a known learning outcome (instructional objective) and/or contextual factors and wants to see what technologies might be beneficial for that instance
- a user who wants to learn how to apply a technology and practice those steps
- a user that has been directed to use a particular technology and wants to learn what the research says about the technology and how to apply it
These design requirements were documented using flowcharts and wireframes to convey the navigation and site architecture for an external software vendor to develop the LATIST prototype. Additionally, two logical data models were developed to support the dynamic nature of the “select best technology” component of LATIST and enable a searchable repository of the research. Furthermore, two short videos were designed and developed by a video producer to introduce users to the purpose, capabilities, and navigation of LATIST. Based on the documented requirements, an initial prototype was developed to begin usability testing.
Two rounds of usability testing were conducted to iteratively improve the LATIST prototype based on expert and user feedback. Both rounds were intended to determine design inconsistencies and usability problems to establish user performance and user satisfaction levels. Both rounds consisted of two phases: Phase I relied on the immersion team and proxy participant feedback while Phase II relied on end-user (DAU) participant feedback.
In Round 1, expert and stakeholder-users provided generally positive comments in regards to the layout, navigation, and overall functionality of the LATIST prototype. Improvements were accomplished based on comments. In Round 2, Phase II testing took place at DAU’s Fort Belvoir campus to capture representative user performance and user satisfaction under controlled testing conditions. Nine participants were given six task based scenarios to complete and were encouraged to think-aloud to capture their thinking process. Results indicated the majority of participants felt LATIST would be helpful in raising awareness of technology options and that with further development; LATIST would be an effective resource. One participant noted LATIST would be a “good idea generator.”
Recommendations stated independently by at least two of the nine participants included:
- Add more multi-media resources as the current use of videos was good
- Add more examples explaining how to integrate technology into learning assets
- Add a means to easily share information in the tool such as through social media or email options
- Ensure the tool is scalable, the information relevant, and the content up-to-date
- Provide more connectivity across components and between subcomponents within ‘select best technology’ component
Based on the usability testing results, the LATIST prototype was revised to include the main features and functions intended to support DAU faculty and staff in integrating ALT. As such, LATIST is best described through its main navigation pages: LATIST Home Page, Explore Research, Select Best Technology, and Apply Technology.