Usability testing in a library web site redesign project

An intuitive library information gateway is critical to meeting the information needs of library users in the digital age. This article describes the process involved in redesigning a library Web site. In addition to first determining the goals and requirements for the library Web site, a user and task analysis was conducted for defining the library\u27s user base and types of tasks which users might be performing at the site. Usability testing methods, such as observational interviews, provided fresh insights about how users are interacting with the library Web interface as they approach various information seeking tasks. These usability studies uncovered problems related to unclear terminology, proper use of color, size and location of navigational links, and the need for context sensitive help, built-in redundancy, and clear and consistent navigation

Extending Eventually Consistent Cloud Databases for Enforcing Numeric Invariants

Geo-replicated databases often operate under the principle of eventual consistency to offer high-availability with low latency on a simple key/value store abstraction. Recently, some have adopted commutative data types to provide seamless reconciliation for special purpose data types, such as counters. Despite this, the inability to enforce numeric invariants across all replicas still remains a key shortcoming of relying on the limited guarantees of eventual consistency storage. We present a new replicated data type, called bounded counter, which adds support for numeric invariants to eventually consistent geo-replicated databases. We describe how this can be implemented on top of existing cloud stores without modifying them, using Riak as an example. Our approach adapts ideas from escrow transactions to devise a solution that is decentralized, fault-tolerant and fast. Our evaluation shows much lower latency and better scalability than the traditional approach of using strong consistency to enforce numeric invariants, thus alleviating the tension between consistency and availability

Emergent digital services in public libraries : a domain study

Purpose: This paper explores the emergence of digital services in the public library domain via an extensive study of the websites of all Scottish public library services Design/methodology/approach: In a 4 month period all 32 of Scotland’s public library authority websites were visited by a researcher. The goal of the researcher was to record the options available from the library homepages in the following way: •Role of library in providing page content: content provider or access provider? •Was the page providing a digital service? •What was the audience for the page? Adult, child, or not specified? •Description of page content •Any noted usability issues Each site was only visited to three levels below that of the initial homepage. Findings: The study found a good standard of innovation in digital services around LMS functions, offering users the ability to keep in control of their borrowing and reserving. In addition there was a consistent set of electronic reference resources subscribed to by multiple libraries, offering high quality information both within the library and for library members from their home or workplace. Problems were found with regards to guidance on the usage of these resources, as well as confusion and inconsistency in terminology usage across different library services. Research limitations/implications: The paper examines only Scottish public library sites, thus can only claim to be representative of that country. It also can only represent the sites at the time they were examined. Practical implications: The paper should be of interest to public and other librarians interested in patterns across web sites in their sector. Originality/value: This is the first national study of Scottish public library websites and its findings should be of value as a result

Putting Data to Work: Interim Recommendations From the Benchmarking Project

Calls on policy makers and funders to foster continuous improvement in workforce development by supporting consistent performance measures, easily exchanged data, useful reports on trends, peer learning opportunities, and broader project participation

Why Print and Electronic Resources Are Essential to the Academic Law Library

Libraries have supported multiple formats for decades, from paper and microforms to audiovisual tapes and CDs. However, the newest medium, digital transmission, has presented a wider scope of challenges and caused library patrons to question the established and recognized multiformat library. Within the many questions posed, two distinct ones echo repeatedly. The first doubts the need to sustain print in an increasingly digital world, and the second warns of the dangers of relying on a still-developing technology. This article examines both of these positions and concludes that abandoning either format would translate into a failure of service to patrons, both present and future